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The document outlines the nervous system's response to environmental changes, detailing how receptors detect stimuli and relay information to the central nervous system, which coordinates the body's response through effectors like glands and muscles. It also describes the brain's complex structure and its various functions. Additionally, it explains the process of accommodation in the eye, highlighting the roles of ciliary muscles and suspensory ligaments in focusing on objects at different distances.

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ethan.thomasispro
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11 views1 page

Cover Work

The document outlines the nervous system's response to environmental changes, detailing how receptors detect stimuli and relay information to the central nervous system, which coordinates the body's response through effectors like glands and muscles. It also describes the brain's complex structure and its various functions. Additionally, it explains the process of accommodation in the eye, highlighting the roles of ciliary muscles and suspensory ligaments in focusing on objects at different distances.

Uploaded by

ethan.thomasispro
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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C/W cover lesson

Nervous system responses:


A change in the environment is picked up by the receptors
Information from receptor passes along cells coordinator to the central nervous
system as electrical impulses.
The brain coordinates the body’s response to the stimulus.
Effectors bring about a response such as glands secreting hormones or muscles
contracting.
The body responds to the stimulus.
The brain:
It is made of billions of interconnected parts with different sections that carry out
different functions.
Accommodation:
Accommodation is the process of changing the shape of the eye to focus on near
or distant objects.
To focus on a near object:
Ciliary muscles hold the Lense in place.
Suspensory ligaments are also used to hold the Lense in place.

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