13-1 The nervous system

Question 1

What is the structural organization of the nervous system?

Answer 1

Central nervous system
* Brain and spinal cord
* Processing centers
– Peripheral nervous system
* Cranial nerves and spinal nerves
* Sensory input and motor response pathways

Question 2

What is a reflex

Answer 2

Quick, automatic nerve responses triggered by specific stimuli

Question 3

What is a spinal reflex

Answer 3

Controlled by the spinal cord alone without input from the brain