Nervous System Flashcards
6 cards from real Anatomy and Physiology practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Nervous System flashcards as text
Which division of the autonomic nervous system prepares the body for 'fight or flight' responses?
Answer: Sympathetic
The sympathetic division of the ANS activates the fight-or-flight response, increasing heart rate, dilating bronchioles, and redirecting blood to muscles.
What is the name of the fluid-filled cavities within the brain?
Answer: Ventricles
The brain's four ventricles are fluid-filled chambers that produce and circulate cerebrospinal fluid (CSF) throughout the CNS.
Which lobe of the cerebral cortex is responsible for processing visual information?
Answer: Occipital lobe
The occipital lobe, located at the posterior of the cerebrum, contains the primary visual cortex and processes all visual information.
What is the term for the period after an action potential during which a neuron cannot fire again?
Answer: Refractory period
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.
Which structure connects the left and right cerebral hemispheres?
Answer: Corpus callosum
The corpus callosum is a large band of white matter containing nerve fibers that connects and facilitates communication between the two cerebral hemispheres.
What are the three layers of protective membranes surrounding the brain and spinal cord called collectively?
Answer: Meninges
The meninges are three protective membranes—the dura mater, arachnoid mater, and pia mater—that surround and protect the brain and spinal cord.