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Laboratory Exercise 15 Gross Anatomy of The Human Urinary System

This document provides information about the gross anatomy of the human urinary system and characteristics of urine. It includes diagrams of the kidneys and nephron to label structures. The urinary system organs identified are the kidneys, ureters, urinary bladder, and urethra. The kidneys filter blood to produce urine, which is transported by the ureters to the urinary bladder for storage and then exits through the urethra. A normal daily urine output is between 800-2000 mL and it contains nitrogenous wastes like urea but not glucose, amino acids, or blood proteins in healthy individuals. Urinalysis is part of routine physical exams to check for any abnormal substances that could indicate

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176 views7 pages

Laboratory Exercise 15 Gross Anatomy of The Human Urinary System

This document provides information about the gross anatomy of the human urinary system and characteristics of urine. It includes diagrams of the kidneys and nephron to label structures. The urinary system organs identified are the kidneys, ureters, urinary bladder, and urethra. The kidneys filter blood to produce urine, which is transported by the ureters to the urinary bladder for storage and then exits through the urethra. A normal daily urine output is between 800-2000 mL and it contains nitrogenous wastes like urea but not glucose, amino acids, or blood proteins in healthy individuals. Urinalysis is part of routine physical exams to check for any abnormal substances that could indicate

Uploaded by

Jc Jardinico
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© © All Rights Reserved
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Laboratory Exercise 15

Gross Anatomy of the Human Urinary System


1. What is the function of the fat cushion that surrounds the kidneys in life?

The fat cushion holds the kidneys in place in the retroperitoneal cavity

2. Complete the labeling of the diagram to correctly identify the urinary system organs. Then
respond to the questions that follow.

Inferior Vena Cava

Renal Vein Adrenal Gland

Renal Artery

Kidney
Aorta

Ureter
Iliac Crest

Rectum

Uterus

Urinary Bladder

Urethra

3. Which of the structures identified above is applicable to the following statements?

Kidney 1. maintains water and electrolyte balance of the blood


Urinary Bladder 2. serves as a storage area for urine
Urethra 3. transports urine to the body exterior
Renal Artery 4. transports arterial blood to the kidney
Kidney 5. produces urine
Ureter 6. transports urine to the urinary bladder
Urethra 7. is shorter in women than in men

Urinalysis: Characteristics of Urine

1. What is the normal volume of urine excreted in a 24-hour period?

The usual 24-hour urine volume is between 800 and 2,000 milliliters each day (with a
normal fluid intake of about 2 liters per day).

2. List three nitrogenous wastes that are routinely found in urine:

Urea, creatinine, and uric acid are three nitrogenous wastes that are commonly present
in urine.
3. List three substances that are absent from the urine of healthy individual:

Glucose, Amino Acids, and Blood Proteins are substances that are absent from the
urine of a healthy individual.

4. List two substances that are routinely found in filtrate but not in the urine product:

Glucose and Amino Acids are substances that are routinely found in filtrate but not in
the urine product.

5. Explain why urinalysis is a routine part of any good physical examination.

Urinalysis is a routine part of physical examinations because if any abnormal


substances are detected in the urine of an individual, it can indicate diseases or issues in
the body.

Multiple Choice Questions

Using Figure 15.1, identify the following:

1) The ureter is indicated by E.


A) Label E
B) Label A
C) Label G
D) Label F
E) Label B
2) The renal cortex is indicated by B.
A) Label F
B) Label G
C) Label D
D) Label E
E) Label A

3) The renal pelvis is indicated by A.


A) Label E
B) Label A
C) Label G
D) Label F
E) Label B

4) A calyx is indicated by C.
A) Label G
B) Label F
C) Label A
D) Label B
E) Label C

Figure 15.2
Using Figure 15.2, identify the following:

5) The nephron loop, or loop of Henle, is indicated by B.


A) Label I
B) Label J
C) Label K
D) Label M
E) Label O

6) The peritubular capillaries are indicated by A.


A) Label N
B) Label M
C) Label O
D) Label L
E) Label K

7) The glomerular capsule (Bowman's capsule) is indicated by C.


A) Label G
B) Label F
C) Label A
D) Label I
E) Label C

8) The proximal convoluted tubule is indicated by A.


A) Label M
B) Label N
C) Label O
D) Label I
E) Label F

9) The efferent arteriole is indicated by B.


A) Label D
B) Label C
C) Label L
D) Label K
E) Label B

10) The cortical radiate artery is indicated by E.


A) Label E
B) Label A
C) Label I
D) Label M
E) Label D

11) The glomerulus is indicated by D.


A) Label F
B) Label I
C) Label K
D) Label O
E) Label M

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