nerve

Question 1

the activities of an animal are regulated by its nervous system and its

Answer 1

endocrine

Question 2

a series of ion charges which pass along a nerve fiber is an

Answer 2

message
impulse
reverse-polarity
action-potential

Question 3

three major portions of a neuron are the cell body, end brush, and

Answer 3

dendrites

Question 4

clusters of nerve-cell bodies, which are a location of multiple interconnections, are called

Answer 4

ganglia

Question 5

two neurtransmitters which can carry impulses across the synapse are

Answer 5

adrenaine and seratonin

Question 6

when the inside of the membrane of an axon is negative, the membrane is said to be

Answer 6

resting

Question 7

the stronger the stimuus, the more ___ are the impulses

Answer 7

frequent

Question 8

what carry impulses away from the spinal cord?

Answer 8

motor

Question 9

what carries impulses to the spinal cord

Answer 9

assosiative

Question 10

the type of nervous ssytem isn hydra is

Answer 10

net

Question 11

the earthworm’s nerve cord is on the what side

Answer 11

ventral

Question 12

the capacity of protoplasm to respond to stimuli is called

Answer 12

irritability

Question 13

paramecium moves toward food by using?

Answer 13

cilia

Question 14

the earthwrom’s brain is aka

Answer 14

ganglia

Question 15

animals with heads are said to be

Answer 15

bilateral

Question 16

where would your impulses travel when you react?

Answer 16

sensory, associative, motor

Question 17

why is there a higher concentration of potassium ions inside the cell than outside?

Answer 17

active transport

Question 18

the sympathetic and parasympathetic makeup the

Answer 18

autonomic nervous system

Question 19

sympathetic

Answer 19

go

Question 20

parasympathetic

Answer 20

stop

Question 21

a synapse,

a. ions diffuse across the gap
b. hormones cross the gap
c. NTs are released

Answer 21

c

Question 22

the axon of a neuron is protected by

Answer 22

a myelin sheath

Question 23

which type of neuron is responsible for transmitting impulses to a gland?

a. sensory
b. motor
c. associative

Answer 23

b

Question 24

the nerve impulse may best be considered as

a. movement of ions
b. active transsport

Answer 24

a

Question 25

the hydra does not have a

Answer 25

centralized nerve cord

Question 26

a definite pathway from receptors to effectors is characteristics of a

Answer 26

centralized nervous system

Question 27

earthworms have waht?

Answer 27

a ventral centralised nerve cord

Question 28

describe the path of the impulses

Answer 28

terminal end branch
membrane does exocytosis
vesicle containing neurons
secreted NTs diffuse across synapse
lock and key w adjacent dandrite

Question 29

myelinated: fast or slow

Answer 29

fast

Question 30

unmyelinated: fast or slow

Answer 30

slow

Question 31

what switches the ions back to resting state?

Answer 31

active transport