Module 9, 10

Question 1

Nerve cells that are the basic building block of the nervous system

Answer 1

Neuron

Question 2

The part of a neuron that contains the nucleus and acts as the cells life support system

Answer 2

Cell body

Question 3

I neurons often brushy, branching extensions that receive and integrate messages toward the cell body

Answer 3

Dendrites

Question 4

The neuron extension that passes messages through its branches to the other neurons or to muscles or glands is called

Answer 4

Axon

Question 5

A fatty tissue layer in casing the axons of some neurons

Answer 5

Myelin steath

Question 6

Cells in the nervous system that support nourish and protect neurons in that also play a role in learning thinking and memory

Answer 6

Glial cells

Question 7

A neural impulse or brief electrical charge that travels down an axon

Answer 7

Action potential

Question 8

The level of stimulation required to trigger a neural impulse

Answer 8

Threshold

Question 9

A neural processing or a brief resting pause that occurs after a neuron has fired is called the

Answer 9

Refractory period

Question 10

A neuron‘s reaction of either firing or not firing is called

Answer 10

All or none response

Question 11

The junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron is the

Answer 11

Synapse

Question 12

Chemical messengers that cross the synaptic gaps between neurons are called

Answer 12

Neurotransmitters

Question 13

General transmitters reabsorption by the sending neuron is called

Answer 13

Reutake

Question 14

If these neurons deteriorate Alzheimer’s develops

Answer 14

Acetylcholine

Question 15

A neurotransmitter that influences movement learning attention and emotion is called… oversupply= schizophrenia under supply=Parkinson’s disease, with tremors and decreased mobility

Answer 15

Dopamine

Question 16

A neurotransmitter that affects mood hunger sleep and arousal and undersupply is linked to depression

Answer 16

Serotonin

Question 17

Neurotransmitter that helps control alertness and arousal and undersupply can depressed mood

Answer 17

Norepinephrine

Question 18

Neurotransmitter that is the chief inhibitory transmitter whose principal role is reducing neuronal excitability throughout the nervous system

Answer 18

GABA

Question 19

Major excitatory neurotransmitter involved in memory an over supply can over stimulate the brain causing migraines or seizures

Answer 19

Glumate

Question 20

A neurotransmitter that influences the perception of pain or pleasure

Answer 20

Endorphins

Question 21

A molecule that increases a neurotransmitters action if mix with drugs or other chemicals is called an

Answer 21

Agonist

Question 22

A molecule that inhibits or blocks A neurotransmitters action it makes with the drugs or other chemicals is called an

Answer 22

Antagonist

Question 23

The sensory and motor neurons that connect the central nervous system to the rest of the body is the… Nervous system

Answer 23

Peripheral

Question 24

Controls the body skeletal muscles is the… Nervous system

Answer 24

Somatic

Question 25

Controls the glands and muscles is called the… Nervous system

Answer 25

Autonomic

Question 26

Arouses the body using its energy is called the… Nervous system

Answer 26

Sympathetic

Question 27

Calms the body conserving its energy is called the… Nervous system

Answer 27

Parasympathetic

Question 28

Consists of the brain and spinal cord

Answer 28

Central nervous system

Question 29

Bundled axons that form neural cables connecting the central nervous system with muscles and glands in nerves are called

Answer 29

Nerves

Question 30

Neurons that carry incoming information from the bodies tissues and sensory receptors to the brain and spinal cord are called

Answer 30

Sensory (afferent) neurons

Question 31

Neurons that carry outgoing information from the brain and spinal cord to the muscles and glands are called

Answer 31

Motor (efferent) neurons

Question 32

Neurons within the brain and spinal cord that communicate internally and process information between the sensory inputs and motor outputs are called

Answer 32

Interneurons

Question 33

A simple automatic response to a sensory stimulus such as a knee-jerk response

Answer 33

Reflex

Question 34

Chemical messengers that are manufactured by the endocrine glands travel through the bloodstream and affect other tissues is called

Answer 34

Hormones

Question 35

A pair of endocrine glands that sit just above the kidneys and secrete hormones that help arouse the body in times of stress is called

Answer 35

Adrenal glands

Question 36

The endocrine systems most influential gland that regulates growth and controls other endocrine glands is called the

Answer 36

Pituitary gland