Circulatory System

Question 1

The brain stem

Answer 1

Medulla oblongata

Question 2

The portion of the cerebrum responsible for vision

Answer 2

Occipital

Question 3

There are 31 pairs of __________ nerves

Answer 3

Spinal

Question 4

The portion of the brain responsible for maintaining homeostasis within the body

Answer 4

Hypothalamus

Question 5

components of the CNS

Answer 5

Brain & Spinal cord

Question 6

The nodes of _______ are breaks between myelinated sections of the axon

Answer 6

Ranvier

Question 7

After an action potential, sodium and potassium are returned to their resting potential state by the process of ______ (2 words)

Answer 7

Active transport

Question 8

These substances break down neuro transmitters in the synaptic cleft after their release.

Answer 8

Enzymes

Question 9

The three protective membranes around the spinal cord

Answer 9

Meninges

Question 10

________ neurotransmitters make the post synaptic membrane more permeable to Na+

Answer 10

Excitatory

Question 11

The portion of the brain that recieves all information from the senses (except for smell)

Answer 11

Thalamus

Question 12

A substance which coats the axons of nerve cells

Answer 12

Myelin

Question 13

The ventral root conducts nerve impulses _____ from the spinal cord

Answer 13

Away

Question 14

A chemical that is released to transmit a nerve impulse from one nerve cell to the next

Answer 14

Neurotransmitter

Question 15

A horizontal section that connects the right and left hemispheres of the brain

Answer 15

Corpus callosum

Question 16

Shorter branches of a neuron which receive nerve impulses

Answer 16

Dendrites

Question 17

________ matter in the spinal cord contains mostly cell bodies

Answer 17

Grey

Question 18

The stage of action potential where sodium ions begin to move into the cell

Answer 18

Depolarization

Question 19

___________ neurons carry nerve impulses AWAY from the CNS

Answer 19

Motor/Efferent

Question 20

the central part of the neuron, where most activities related to the maintenance of the cell occur

Answer 20

Cell body

Question 21

The sodium/potassium pump requires the energy molecule _________

Answer 21

ATP

Question 22

Axon _________ are at the end of the axon

Answer 22

Terminals

Question 23

The space between the axon ends of one nerve cell and the dendrites of a neighboring cell

Answer 23

Synapse/Synaptic Cleft

Question 23

_________ matter in the spinal cord contains bundles of myelinated axons

Answer 23

White

Question 24

The portion of the cerebrum responsible for thinking

Answer 24

Frontal Lobe

Question 25

The portion of the cerebrum responsible for understanding speech

Answer 25

Parietal lobe

Question 26

___________ transmissions occurs because of the myelinated nature of the axon

Answer 26

Saltatory

Question 27

The coated portions of the axon are called _______

Answer 27

Schwann

Question 28

During resting potential, ______ is the most common ion outside of the cell

Answer 28

Sodium (Na+)

Question 29

__________ transmitters make the post synaptic membrane less permeable to Na+ and therefore less likely to produce an action potential

Answer 29

Inhibitory

Question 30

The name given to the "nerve impulse" that passes along a neuron (2 words)

Answer 30

Action potential

Question 31

The stage of action potential where potassium ions begin to move out of the cell

Answer 31

Repolarization

Question 32

The dorsal roots looks different then that ventral root due to the presence of an enlargement called the dorsal root _______

Answer 32

Ganglion

Question 33

Another word for "motor" neuron

Answer 33

Efferent

Question 34

Another word for "sensory" neuron

Answer 34

Afferent

Question 35

The dorsal root conducts nerve impulses ________ the spinal cord

Answer 35

Toward

Question 36

The portion of the nervous system which produces the "fight or flight" response

Answer 36

sympathetic

Question 37

The portion of the nervous system which is "involuntary" (not under your conscious control)

Answer 37

Autonomous

Question 38

The void running down the center of the spinal cord (2 words)

Answer 38

Central canal

Question 39

The part of the brain responsible for conscious thought

Answer 39

Frontal Lobe

Question 40

The ______ period occurs when sodium and potassium ions are being returned to their resting potential concentrations

Answer 40

Refractory

Question 41

The _____ nervous systems contains all the nerves that effect the skeletal muscles and sensory organs

Answer 41

Somatic

Question 42

The "master gland"

Answer 42

Pituitary

Question 43

The voltage inside a neuron at resting potential is approximately -_______

Answer 43

-70mV

Question 44

Nerves are bundles of individual cells called ______

Answer 44

Neurons

Question 45

One component of the CNS

Answer 45

Brain/Spinal cord

Question 46

The portion of the nervous system which puts you into a more relaxed state

Answer 46

Parasympathetic

Question 47

During resting potential, ______ is the most common ion inside of the cell

Answer 47

Potassium (K+)

Question 48

A neurotransmitter released in response to the parasympathetic nervous system - puts you into a relaxed state

Answer 48

Acetylcholine

Question 49

An involuntary response to which bypasses the brain

Answer 49

Reflex

Question 50

The lobe of the cerebrum responsible for hearing and smelling

Answer 50

Temporal Lobe

Question 51

A type of neuron found only in the CNS

Answer 51

Interneuron

Question 52

_________ contain the neurotransmitters within the axon terminals

Answer 52

Vesicles

Question 53

A neurotransmitter released by the sympathetic nervous system to induce the fight or flight response

Answer 53

Noradrenalin

Question 54

The part of the brain responsible for balance

Answer 54

Cerebellum

Question 55

Portion of the nervous system that is not the CNS

Answer 55

Peripheral