Chapter 11 - The Nervous System

Question 1

Overview of the nervous system

Answer 1

controls perception and experience of world
– Directs voluntary movement
– Seat of consciousness, personality, learning, and memory
– Regulates many aspects of homeostasis with endocrine system:
▪ respiratory rate
▪ blood pressure
▪ body temperature
▪ sleep/wake cycle
▪ blood pH

Question 2

divisions of the nervous system

Answer 2

central and peripheral

Question 3

CNS

Answer 3

brain and spinal cord

Question 4

brain

Answer 4

billions of nerve cells (neurons); protected by bones of skull

Question 5

spinal cord

Answer 5

begins at foramen magnum; continues through vertebral
foramina of first cervical to first or second lumbar vertebra
– Millions of neurons; much fewer than brain
– Enables brain to communicate with most of body below head and neck

Question 6

nerves

Answer 6

axons of neurons bundled together with blood vessels and
connective tissue; carry signals to and from CNS; classified by origin or
destination