nervous sys.

Question 1

what are the 3 types of neurons?

Answer 1

sensory, motor, and interneuron

Question 2

what is the wiring of the sensory neurons?

Answer 2

sense organ/receptor to brain & spinal cord

Question 3

what is the wiring of the motor neurons?

Answer 3

brain & spinal cord to effectors (muscle & glands)

Question 4

what is the location of the interneurons?

Answer 4

brain & spinal cord

Question 5

what are the interneurons wiring?

Answer 5

transmit nerve impulses from sensory neurons to motor neurons

Question 6

what is the cns?

Answer 6

brain & spinal cord (central nervous sys.)

Question 7

what is the pns?

Answer 7

all neurons both sensory & motor outside the cns (peripheral nervous sys.)

Question 8

what is the brain?

Answer 8

the cns

Question 9

what are the 3 major parts of the brain?

Answer 9

cerebrum, cerebellum, and medulla

Question 10

what is the largest part of the brain?

Answer 10

the cerebrum

Question 11

what does the cerebrum initiate?

Answer 11

all voluntary/conscious movements

Question 12

where is the cerebellum?

Answer 12

below & behind the cerebrum

Question 13

what does the cerebellum coordinate?

Answer 13

it coordinates all motor activity & maintains the body’s balance

Question 14

where is the medulla?

Answer 14

base of the brain & connects to spinal cord

Question 15

what does the medulla initiate?

Answer 15

involuntary activities

Question 16

what are examples of involuntary activities?

Answer 16

breathing, heart rate, blood pressure, peristalsis

Question 17

what is the medulla continuous with?

Answer 17

the spinal cord

Question 18

what is the spinal cord protected by?

Answer 18

the vertebrae

Question 19

what is the spinal coordination?

Answer 19

between the brain & other body structures

Question 20

sense receptors

Answer 20

transmitted by sensory neurons to spinal cord “throughout body”

Question 21

interneurons (transmissions)

Answer 21

transmits impulses to the brain “w/in spinal cord”

Question 22

where does the brain carry impulses do?

Answer 22

to the motor neurons thru the spinal cord

Question 23

where does spinal cord transmit to?

Answer 23

to appropriate effectors (muscle or gland)

Question 24

where do the pns carry impulses between?

Answer 24

between the cns & the rest of the body

Question 25

what are the 2 divisions of pns?

Answer 25

somatic & autonomic nervous sys.

Question 26

what is somatic ns?

Answer 26

all nerves of voluntary muscles & sensory neurons that transmit from sensory receptors to the cns

Question 27

what is autonomic ns?

Answer 27

all nerves of involuntary muscles

Question 28

what are examples of autonomic ns?

Answer 28

smooth muscle, cardiac muscle, & glands

Question 29

what is also autonomic ns?

Answer 29

regulation

Question 30

what are examples of regulation?

Answer 30

heart beat and circulation & respiration and peristalsis

Question 31

what are the 2 types of behaviors for the nervous sys.?

Answer 31

habits & reflexes

Question 32

what are habits?

Answer 32

learned behavior that becomes autonomic thru repetition

Question 33

what are reflexes?

Answer 33

autonomic inborn response

Question 34

what do reflexes consist of?

Answer 34

a reflex arch

Question 35

what does a reflex arch have?

Answer 35

an interneuron at the center of the reflex arch

Question 36

what does reflexes being generally protective in nature do?

Answer 36

it allows a rapid response to a potentially dangerous stimulus.