Ch.3: The Nervous System

Question 1

sensory neurons

Answer 1

carry input messages from the sense organs to the spinal cord and brain

Question 2

motor neurons

Answer 2

transmit output impulses fromt he brain and spinal cord tot he body’s muscles and organs

Question 3

CNS (central nervous system)

Answer 3

consisting of all the neurons in the brain and spinal cord

Question 4

PNS (peripheral nervous system)

Answer 4

composed of all the neorns that connect the CNS and the muscles, glands and sensory receptors

Question 5

2 parts of the PNS

Answer 5

1) somatic nervous system

2) autonomic nervous system

Question 6

somatic nervous system

Answer 6

consists of SENSORY NERUONS that are specilzed to transmit nessages from the eyes, ears and other sensory receptors
consists of MOTOR NERUONS that sned messages fromt he brain and spinal cord to the muscles

Question 7

autonomic nervous system

Answer 7

controls glands and the involuntary muscles that form the heart, blood vessels and lining of the stomach

Question 8

Two parts of the autonomic nervous system:

Answer 8

• sympathetic nervous system - speeds up processes within the body
• parasympathetic nervous system - slows down body processes and returns you to a state of rest.