1.
Which cranial nerve is primarily responsible for the motor innervation of the facial
muscles?
a) Trigeminal nerve (V)
b) Facial nerve (VII)
c) Glossopharyngeal nerve (IX)
d) Vagus nerve (X)
2. Which branch of the facial nerve innervates the muscles of the lower lip and chin?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Marginal mandibular branch
3. Which cranial nerve provides some sensory innervation to the facial muscles?
a) Trigeminal nerve (V)
b) Facial nerve (VII)
c) Glossopharyngeal nerve (IX)
d) Vagus nerve (X)
4. Which artery is the main source of blood supply to the muscles of the face?
a) Superficial temporal artery
b) Internal carotid artery
c) External carotid artery
d) Facial artery
5. Which of the following is true regarding the blood supply to the upper and lower face?
a) The blood supply is evenly distributed between the upper and lower face.
b) The upper face has a richer blood supply compared to the lower face.
c) The lower face has a richer blood supply compared to the upper face.
d) The blood supply is independent between the upper and lower face.
6. Which branch of the facial nerve innervates the muscles of the cheek?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Cervical branch
7. What is the primary function of the motor component of the facial nerve?
a) Provide sensation to the face
b) Control the muscles of facial expression
c) Innervate the posterior tongue muscles
d) Regulate salivation
8. Which cranial nerve provides some motor innervation to the posterior tongue muscles
involved in facial expression?
a) Trigeminal nerve (V)
b) Facial nerve (VII)
c) Glossopharyngeal nerve (IX)
d) Vagus nerve (X)
9. What is the clinical consequence of damage to the facial nerve or its branches?
a) Loss of sensation in the face
b) Difficulty swallowing
c) Paralysis of facial muscles
d) Impaired salivation
10. Which branch of the facial nerve innervates the muscles of the forehead and upper
eyelid?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Marginal mandibular branch
11. Which nerve branch provides motor innervation to the orbicularis oculi muscle?
a) Temporal branch of the facial nerve
b) Zygomatic branch of the facial nerve
c) Buccal branch of the facial nerve
d) Marginal mandibular branch of the facial nerve
12. Which artery supplies blood to the lateral aspect of the forehead?
a) Supraorbital artery
b) Infraorbital artery
c) Superficial temporal artery
d) Angular artery
13. Where does the facial artery originate from?
a) Internal carotid artery
b) External carotid artery
c) Superficial temporal artery
d) Maxillary artery
14. Which branch of the facial artery supplies the muscles of the lower lip?
a) Superior labial artery
b) Inferior labial artery
c) Lateral nasal artery
d) Angular artery
15. What is the clinical significance of the rich anastomoses between the branches of the
facial artery?
a) Allows for collateral blood flow in case of obstruction
b) Increases the risk of excessive bleeding during facial surgery
c) Enhances the sensory innervation of the facial muscles
d) Facilitates the spread of infections from one facial region to another
16. Which nerve branch provides motor innervation to the risorius muscle?
a) Temporal branch of the facial nerve
b) Zygomatic branch of the facial nerve
c) Buccal branch of the facial nerve
d) Marginal mandibular branch of the facial nerve
17. Where does the motor division of the facial nerve exit the skull?
a) Foramen ovale
b) Foramen rotundum
c) Stylomastoid foramen
d) Jugular foramen
18. Which branch of the facial nerve is most vulnerable to injury during parotid gland
surgery?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Marginal mandibular branch
19. What is the main function of the sensory component of the trigeminal nerve in relation
to the facial muscles?
a) Provide proprioception from the muscles
b) Regulate the autonomic innervation of the muscles
c) Facilitate the motor control of the muscles
d) Transmit pain and temperature sensation from the muscles
20. Which artery supplies blood to the muscles of the upper lip?
a) Superior labial artery
b) Inferior labial artery
c) Lateral nasal artery
d) Angular artery
21. Which branch of the facial nerve innervates the muscles of the nose?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Nasal branch
22. What is the main function of the motor component of the trigeminal nerve in relation to
the facial muscles?
a) Provide sensation to the skin of the face
b) Regulate the autonomic innervation of the muscles
c) Facilitate the voluntary control of the muscles
d) Transmit proprioceptive information from the muscles
23. Which artery supplies blood to the muscles of the nasal ala?
a) Supraorbital artery
b) Infraorbital artery
c) Lateral nasal artery
d) Angular artery
24. Where does the facial artery cross the mandible?
a) Anterior to the masseter muscle
b) Posterior to the masseter muscle
c) Within the substance of the parotid gland
d) At the angle of the mandible
25. Which branch of the facial nerve is responsible for innervating the muscles of the
platysma?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Cervical branch
26. What is the primary function of the sensory component of the facial nerve?
a) Provide sensation to the skin of the face
b) Regulate the autonomic innervation of the muscles
c) Facilitate the voluntary control of the muscles
d) Transmit proprioceptive information from the muscles
27. Which artery supplies blood to the muscles of the chin?
a) Mental artery
b) Submental artery
c) Inferior labial artery
d) Facial artery
28. Where does the motor division of the facial nerve exit the stylomastoid foramen?
a) Anteriorly
b) Posteriorly
c) Superiorly
d) Inferiorly
29. Which branch of the facial nerve is most susceptible to injury during facelift surgery?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Marginal mandibular branch
30. What is the clinical consequence of damage to the sensory component of the
trigeminal nerve in relation to the facial muscles?
a) Loss of voluntary control of the muscles
b) Impaired proprioception of the muscles
c) Reduced autonomic regulation of the muscles
d) Decreased sensation in the skin of the face
31. Which artery supplies blood to the muscles of the upper eyelid?
a) Supraorbital artery
b) Infraorbital artery
c) Superficial temporal artery
d) Angular artery
32. What is the primary function of the autonomic innervation of the facial muscles?
a) Provide sensation to the skin of the face
b) Regulate the voluntary control of the muscles
c) Facilitate the proprioceptive feedback from the muscles
d) Control the vascular supply and glandular function
33. Which branch of the facial nerve is responsible for innervating the muscles of the
forehead?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Marginal mandibular branch
34. Where does the facial artery anastomose with the branches of the internal carotid
artery?
a) At the angle of the mandible
b) In the region of the nasal ala
c) Within the substance of the parotid gland
d) At the medial canthus of the eye
35. What is the clinical significance of the rich anastomoses between the branches of the
trigeminal and facial nerves?
a) Allows for collateral innervation in case of nerve injury
b) Increases the risk of excessive bleeding during facial surgery
c) Enhances the proprioceptive feedback from the facial muscles
d) Facilitates the spread of infections from one facial region to another
MUSCLES OF FACIAL EXPRESSION
1. Which muscle is responsible for raising the eyebrows and wrinkling the forehead?
a) Frontalis muscle
b) Orbicularis oculi muscle
c) Corrugator supercilii muscle
d) Procerus muscle
2. What is the primary function of the orbicularis oculi muscle?
a) Closing the eyelids
b) Protruding the lower lip
c) Elevating the corners of the mouth
d) Depressing the jaw
3. Which muscle is primarily responsible for frowning and drawing the eyebrows together?
a) Frontalis muscle
b) Orbicularis oculi muscle
c) Corrugator supercilii muscle
d) Procerus muscle
4. What is the primary function of the risorius muscle?
a) Retracting the corners of the mouth
b) Elevating the corners of the mouth
c) Depressing the lower lip
d) Protruding the lower lip
5. Which muscle is responsible for flaring the nostrils?
a) Levator palpebrae superioris muscle
b) Zygomaticus major muscle
c) Levator anguli oris muscle
d) Nasalis muscle
6. What is the primary function of the platysma muscle?
a) Elevating the corners of the mouth
b) Depressing the lower lip
c) Pulling the skin of the neck downward
d) Protruding the lower lip
7. Which muscle is responsible for elevating the corners of the mouth and creating a smile?
a) Zygomaticus major muscle
b) Levator anguli oris muscle
c) Risorius muscle
d) Depressor anguli oris muscle
8. What is the primary function of the levator palpebrae superioris muscle?
a) Closing the eyelids
b) Elevating the upper eyelid
c) Depressing the lower eyelid
d) Wrinkling the forehead
9. Which muscle is responsible for depressing the corners of the mouth?
a) Depressor anguli oris muscle
b) Depressor labii inferioris muscle
c) Mentalis muscle
d) Platysma muscle
10. What is the primary function of the mentalis muscle?
a) Elevating the lower lip
b) Depressing the lower lip
c) Protruding the lower lip
d) Retracting the lower lip
11. Which muscle is responsible for protrusion of the lower lip?
a) Orbicularis oris muscle
b) Levator anguli oris muscle
c) Depressor anguli oris muscle
d) Mentalis muscle
12. What is the primary function of the zygomaticus major muscle?
a) Elevating the corners of the mouth
b) Depressing the corners of the mouth
c) Retracting the corners of the mouth
d) Protruding the lower lip
13. Which muscle is responsible for depressing the lower lip?
a) Depressor anguli oris muscle
b) Depressor labii inferioris muscle
c) Mentalis muscle
d) Platysma muscle
14. What is the primary function of the levator anguli oris muscle?
a) Elevating the corners of the mouth
b) Depressing the corners of the mouth
c) Retracting the corners of the mouth
d) Protruding the lower lip
15. Which muscle is responsible for wrinkling the nose?
a) Procerus muscle
b) Nasalis muscle
c) Levator palpebrae superioris muscle
d) Corrugator supercilii muscle1. Which cranial nerve is primarily responsible for the
motor innervation of the facial muscles?
a) Trigeminal nerve (V)
b) Facial nerve (VII)
c) Glossopharyngeal nerve (IX)
d) Vagus nerve (X)
2. Which branch of the facial nerve innervates the muscles of the lower lip and chin?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Marginal mandibular branch
3. Which cranial nerve provides some sensory innervation to the facial muscles?
a) Trigeminal nerve (V)
b) Facial nerve (VII)
c) Glossopharyngeal nerve (IX)
d) Vagus nerve (X)
4. Which artery is the main source of blood supply to the muscles of the face?
a) Superficial temporal artery
b) Internal carotid artery
c) External carotid artery
d) Facial artery
5. Which of the following is true regarding the blood supply to the upper and lower face?
a) The blood supply is evenly distributed between the upper and lower face.
b) The upper face has a richer blood supply compared to the lower face.
c) The lower face has a richer blood supply compared to the upper face.
d) The blood supply is independent between the upper and lower face.
6. Which branch of the facial nerve innervates the muscles of the cheek?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Cervical branch
7. What is the primary function of the motor component of the facial nerve?
a) Provide sensation to the face
b) Control the muscles of facial expression
c) Innervate the posterior tongue muscles
d) Regulate salivation
8. Which cranial nerve provides some motor innervation to the posterior tongue muscles
involved in facial expression?
a) Trigeminal nerve (V)
b) Facial nerve (VII)
c) Glossopharyngeal nerve (IX)
d) Vagus nerve (X)
9. What is the clinical consequence of damage to the facial nerve or its branches?
a) Loss of sensation in the face
b) Difficulty swallowing
c) Paralysis of facial muscles
d) Impaired salivation
10. Which branch of the facial nerve innervates the muscles of the forehead and upper
eyelid?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Marginal mandibular branch
11. Which nerve branch provides motor innervation to the orbicularis oculi muscle?
a) Temporal branch of the facial nerve
b) Zygomatic branch of the facial nerve
c) Buccal branch of the facial nerve
d) Marginal mandibular branch of the facial nerve
12. Which artery supplies blood to the lateral aspect of the forehead?
a) Supraorbital artery
b) Infraorbital artery
c) Superficial temporal artery
d) Angular artery
13. Where does the facial artery originate from?
a) Internal carotid artery
b) External carotid artery
c) Superficial temporal artery
d) Maxillary artery
14. Which branch of the facial artery supplies the muscles of the lower lip?
a) Superior labial artery
b) Inferior labial artery
c) Lateral nasal artery
d) Angular artery
15. What is the clinical significance of the rich anastomoses between the branches of the
facial artery?
a) Allows for collateral blood flow in case of obstruction
b) Increases the risk of excessive bleeding during facial surgery
c) Enhances the sensory innervation of the facial muscles
d) Facilitates the spread of infections from one facial region to another
16. Which nerve branch provides motor innervation to the risorius muscle?
a) Temporal branch of the facial nerve
b) Zygomatic branch of the facial nerve
c) Buccal branch of the facial nerve
d) Marginal mandibular branch of the facial nerve
17. Where does the motor division of the facial nerve exit the skull?
a) Foramen ovale
b) Foramen rotundum
c) Stylomastoid foramen
d) Jugular foramen
18. Which branch of the facial nerve is most vulnerable to injury during parotid gland
surgery?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Marginal mandibular branch
19. What is the main function of the sensory component of the trigeminal nerve in relation
to the facial muscles?
a) Provide proprioception from the muscles
b) Regulate the autonomic innervation of the muscles
c) Facilitate the motor control of the muscles
d) Transmit pain and temperature sensation from the muscles
20. Which artery supplies blood to the muscles of the upper lip?
a) Superior labial artery
b) Inferior labial artery
c) Lateral nasal artery
d) Angular artery
21. Which branch of the facial nerve innervates the muscles of the nose?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Nasal branch
22. What is the main function of the motor component of the trigeminal nerve in relation to
the facial muscles?
a) Provide sensation to the skin of the face
b) Regulate the autonomic innervation of the muscles
c) Facilitate the voluntary control of the muscles
d) Transmit proprioceptive information from the muscles
23. Which artery supplies blood to the muscles of the nasal ala?
a) Supraorbital artery
b) Infraorbital artery
c) Lateral nasal artery
d) Angular artery
24. Where does the facial artery cross the mandible?
a) Anterior to the masseter muscle
b) Posterior to the masseter muscle
c) Within the substance of the parotid gland
d) At the angle of the mandible
25. Which branch of the facial nerve is responsible for innervating the muscles of the
platysma?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Cervical branch
26. What is the primary function of the sensory component of the facial nerve?
a) Provide sensation to the skin of the face
b) Regulate the autonomic innervation of the muscles
c) Facilitate the voluntary control of the muscles
d) Transmit proprioceptive information from the muscles
27. Which artery supplies blood to the muscles of the chin?
a) Mental artery
b) Submental artery
c) Inferior labial artery
d) Facial artery
28. Where does the motor division of the facial nerve exit the stylomastoid foramen?
a) Anteriorly
b) Posteriorly
c) Superiorly
d) Inferiorly
29. Which branch of the facial nerve is most susceptible to injury during facelift surgery?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Marginal mandibular branch
30. What is the clinical consequence of damage to the sensory component of the
trigeminal nerve in relation to the facial muscles?
a) Loss of voluntary control of the muscles
b) Impaired proprioception of the muscles
c) Reduced autonomic regulation of the muscles
d) Decreased sensation in the skin of the face
31. Which artery supplies blood to the muscles of the upper eyelid?
a) Supraorbital artery
b) Infraorbital artery
c) Superficial temporal artery
d) Angular artery
32. What is the primary function of the autonomic innervation of the facial muscles?
a) Provide sensation to the skin of the face
b) Regulate the voluntary control of the muscles
c) Facilitate the proprioceptive feedback from the muscles
d) Control the vascular supply and glandular function
33. Which branch of the facial nerve is responsible for innervating the muscles of the
forehead?
a) Temporal branch
b) Zygomatic branch
c) Buccal branch
d) Marginal mandibular branch
34. Where does the facial artery anastomose with the branches of the internal carotid
artery?
a) At the angle of the mandible
b) In the region of the nasal ala
c) Within the substance of the parotid gland
d) At the medial canthus of the eye
35. What is the clinical significance of the rich anastomoses between the branches of the
trigeminal and facial nerves?
a) Allows for collateral innervation in case of nerve injury
b) Increases the risk of excessive bleeding during facial surgery
c) Enhances the proprioceptive feedback from the facial muscles
d) Facilitates the spread of infections from one facial region to another
MUSCLES OF FACIAL EXPRESSION
1. Which muscle is responsible for raising the eyebrows and wrinkling the forehead?
a) Frontalis muscle
b) Orbicularis oculi muscle
c) Corrugator supercilii muscle
d) Procerus muscle
2. What is the primary function of the orbicularis oculi muscle?
a) Closing the eyelids
b) Protruding the lower lip
c) Elevating the corners of the mouth
d) Depressing the jaw
3. Which muscle is primarily responsible for frowning and drawing the eyebrows together?
a) Frontalis muscle
b) Orbicularis oculi muscle
c) Corrugator supercilii muscle
d) Procerus muscle
4. What is the primary function of the risorius muscle?
a) Retracting the corners of the mouth
b) Elevating the corners of the mouth
c) Depressing the lower lip
d) Protruding the lower lip
5. Which muscle is responsible for flaring the nostrils?
a) Levator palpebrae superioris muscle
b) Zygomaticus major muscle
c) Levator anguli oris muscle
d) Nasalis muscle
6. What is the primary function of the platysma muscle?
a) Elevating the corners of the mouth
b) Depressing the lower lip
c) Pulling the skin of the neck downward
d) Protruding the lower lip
7. Which muscle is responsible for elevating the corners of the mouth and creating a smile?
a) Zygomaticus major muscle
b) Levator anguli oris muscle
c) Risorius muscle
d) Depressor anguli oris muscle
8. What is the primary function of the levator palpebrae superioris muscle?
a) Closing the eyelids
b) Elevating the upper eyelid
c) Depressing the lower eyelid
d) Wrinkling the forehead
9. Which muscle is responsible for depressing the corners of the mouth?
a) Depressor anguli oris muscle
b) Depressor labii inferioris muscle
c) Mentalis muscle
d) Platysma muscle
10. What is the primary function of the mentalis muscle?
a) Elevating the lower lip
b) Depressing the lower lip
c) Protruding the lower lip
d) Retracting the lower lip
11. Which muscle is responsible for protrusion of the lower lip?
a) Orbicularis oris muscle
b) Levator anguli oris muscle
c) Depressor anguli oris muscle
d) Mentalis muscle
12. What is the primary function of the zygomaticus major muscle?
a) Elevating the corners of the mouth
b) Depressing the corners of the mouth
c) Retracting the corners of the mouth
d) Protruding the lower lip
13. Which muscle is responsible for depressing the lower lip?
a) Depressor anguli oris muscle
b) Depressor labii inferioris muscle
c) Mentalis muscle
d) Platysma muscle
14. What is the primary function of the levator anguli oris muscle?
a) Elevati7ng the corners of the mouth
b) Depressing the corners of the mouth
c) Retracting the corners of the mouth
d) Protruding the lower lip
15. Which muscle is responsible for wrinkling the nose?
a) Procerus muscle
b) Nasalis muscle
c) Levator palpebrae superioris muscle
d) Corrugator supercilii muscle
Got it, here are the 15 multiple-choice questions on the muscles of facial expression,
renumbered starting from 16:
16. Which muscle is responsible for wrinkling the forehead?
a) Frontalis muscle
b) Corrugator supercilii muscle
c) Procerus muscle
d) Orbicularis oculi muscle
17. What is the primary function of the orbicularis oculi muscle?
a) Opening the eyelid
b) Closing the eyelid
c) Elevating the eyebrow
d) Depressing the eyebrow
18. Which muscle is responsible for protruding the lower lip?
a) Orbicularis oris muscle
b) Mentalis muscle
c) Depressor anguli oris muscle
d) Levator anguli oris muscle
19. What is the primary function of the levator anguli oris muscle?
a) Elevating the corners of the mouth
b) Depressing the corners of the mouth
c) Retracting the corners of the mouth
d) Protruding the lower lip
20. Which muscle is responsible for depressing the corners of the mouth?
a) Depressor anguli oris muscle
b) Depressor labii inferioris muscle
c) Mentalis muscle
d) Platysma muscle
21. What is the primary function of the zygomaticus major muscle?
a) Elevating the corners of the mouth
b) Depressing the corners of the mouth
c) Retracting the corners of the mouth
d) Protruding the lower lip
22. Which muscle is responsible for compressing the nostrils?
a) Levator palpebrae superioris muscle
b) Zygomaticus major muscle
c) Levator anguli oris muscle
d) Nasalis muscle
23. What is the primary function of the depressor labii inferioris muscle?
a) Elevating the lower lip
b) Depressing the lower lip
c) Protruding the lower lip
d) Retracting the lower lip
24. Which muscle is responsible for elevating the eyebrows?
a) Levator palpebrae superioris muscle
b) Orbicularis oculi muscle
c) Corrugator supercilii muscle
d) Frontalis muscle
25. What is the primary function of the risorius muscle?
a) Elevating the corners of the mouth
b) Depressing the corners of the mouth
c) Retracting the corners of the mouth
d) Protruding the lower lip
26. Which muscle is responsible for flattening the nose?
a) Procerus muscle
b) Nasalis muscle
c) Levator palpebrae superioris muscle
d) Corrugator supercilii muscle
27. What is the primary function of the depressor anguli oris muscle?
a) Elevating the corners of the mouth
b) Depressing the corners of the mouth
c) Retracting the corners of the mouth
d) Protruding the lower lip
28. Which muscle is responsible for retracting the corners of the mouth?
a) Zygomaticus major muscle
b) Levator anguli oris muscle
c) Risorius muscle
d) Depressor anguli oris muscle
29. What is the primary function of the procerus muscle?
a) Elevating the eyebrows
b) Depressing the eyebrows
c) Wrinkling the nose
d) Elevating the upper eyelid
30. Which muscle is responsible for protruding the lower lip?
a) Levator palpebrae superioris muscle
b) Orbicularis oris muscle
c) Corrugator supercilii muscle
d) Mentalis muscle
Let me know if you have
