Chapter 11: Fundamentals of the Nervous System and Nervous Tissue

Question 1

Central Nervous System (CNS)

Answer 1

brain and spinal cord
occupies the dorsal cavity
interprets sensory inputs and dictates motor output based on reflexes, current conditions, and past experience

Question 2

peripheral nervous system (PNS)

Answer 2

nervous system outside the CNS

consists of nerves and ganglia

Question 3

nerves

Answer 3

bundles of axons

Question 4

ganglia

Answer 4

collections of neuron cell bodies

Question 5

spinal nerves

Answer 5

carry impulses to and from the spinal cord

Question 6

cranial nerves

Answer 6

carry impulses to and from the brain

Question 7

PNS sensory/afferent division

Answer 7

consists of nerve fibers that convey impulses to the CNS from sensory receptors located throughout the body

Question 8

sensory somatic fibers

Answer 8

convey impulses from the skin, skeletal muscles, and joints

Question 9

visceral sensory fibers

Answer 9

transmit impulses form the visceral organs

Question 10

PNS motor/efferent division

Answer 10

transmits impulses from the CNS to effector organs that activate muscles to contract and glands to secrete
has two main parts

Question 11

somatic nervous system

Answer 11

composed of somatic motor nerve fibers that conduct impulses form the CNS to skeletal muscles
aka voluntary nervous system

Question 12

automatic nervous system (ANS)

Answer 12

consists of visceral motor nerve fibers that regulate the activity of smooth muscles, cardiac muscles, and glands
aka involuntary nervous system