Anatomy and Physiology Nervous System 2

Question 1

Which division of the autonomic nervous system prepares the body for 'fight or flight' responses?

Accepted Answer

Sympathetic

Answer

The sympathetic division of the ANS activates the fight-or-flight response, increasing heart rate, dilating bronchioles, and redirecting blood to muscles.

Question 2

What is the name of the fluid-filled cavities within the brain?

Accepted Answer

Ventricles

Answer

The brain's four ventricles are fluid-filled chambers that produce and circulate cerebrospinal fluid (CSF) throughout the CNS.

Question 3

Which lobe of the cerebral cortex is responsible for processing visual information?

Accepted Answer

Occipital lobe

Answer

The occipital lobe, located at the posterior of the cerebrum, contains the primary visual cortex and processes all visual information.

Question 4

What is the term for the period after an action potential during which a neuron cannot fire again?

Accepted Answer

Refractory period

Answer

The refractory period is the time following an action potential when a neuron is unable to generate another action potential due to ion channel states.

Question 5

Which structure connects the left and right cerebral hemispheres?

Accepted Answer

Corpus callosum

Answer

The corpus callosum is a large band of white matter containing nerve fibers that connects and facilitates communication between the two cerebral hemispheres.

Anatomy and Physiology Practice Test

Anatomy and Physiology Practice Test

Anatomy and Physiology Nervous System 2