Mod 7

Question 1

Chemical Messengers produced by endocrine glands are called

Answer 1

neurotransmitters

Question 2

The longest part of a neuron is most likely to be the

Answer 2

axon

Question 3

The function of dendrites is to

Answer 3

Receive incoming signals from other neurons

Question 4

What is the correct sequence in the transmission of a neural impulse

Answer 4

dendrite, cell body, axon, synapse

Question 5

With regard to the process of neural transmission, a refractory period refers to a time interval in which

Answer 5

a neuron recharges before it can fire again

Question 6

A brief electrical charge that travels down the axon of a neuron is called the

Answer 6

action potential

Question 7

A synapse is a

Answer 7

junction between a sending and receiving neuron

Question 8

Increasing the intensity if a stimulus above the threshold will not similarly increase the intensity if a neural response to that stimulus. This highlights the nature of the

Answer 8

all or none response

Question 9

Information is carried from the central nervous system to the tissues by

Answer 9

motor neurons

Question 10

Schizophrenia is most clearly linked with excess activity at receptor sites for the neurotransmitter ________ .

Answer 10

dopamine

Question 11

The chemical messengers released into the special junctions between neurons are called

Answer 11

neurotransmitters

Question 12

Transferring messages from a motor neuron to a leg muscle requires the neurotransmitter known as

Answer 12

acetylcholine

Question 13

You are able to pull your hand away from hot water before pain is felt becuase

Answer 13

Movement of the hand is a reflex that involves intervention of the spinal cord only

Question 14

The somatic nervous system is a component of the ______ nervous system.

Answer 14

peripheral

Question 15

The centeral nervous system consists of

Answer 15

the brain and the spinal cord

Question 16

The 2 major divisions of the nervous system are the centeral and the _____ nervous systems

Answer 16

Peripheral

Question 17

You come home one night to find a burglar in your house. Your heart starts to racing and you begin to perspire. These physical reactions are triggered by the:

Answer 17

sympathetic nervous system

Question 18

Because of its function in directing other glands, the pituitary gland is sometimes called the

Answer 18

master gland

Question 19

The thyroid gland helps to

Answer 19

regulate energy level

Question 20

Physical changes during puberty, like secreting sex hormones, are most directly affected by which of the following glands?
A) adrenals and thyroids
B)ovaries and  testes
C)adrenal and hypothalamus
D) thyroid and pituitary

Answer 20

B