Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology 12 > Circulatory System > Flashcards

Circulatory System Flashcards

1
Q

The brain stem

A

Medulla oblongata

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The portion of the cerebrum responsible for vision

A

Occipital

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

There are 31 pairs of __________ nerves

A

Spinal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

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

A

Hypothalamus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

components of the CNS

A

Brain & Spinal cord

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

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

A

Ranvier

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

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

A

Active transport

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

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

A

Enzymes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The three protective membranes around the spinal cord

A

Meninges

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

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

A

Excitatory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

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

A

Thalamus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

A substance which coats the axons of nerve cells

A

Myelin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The ventral root conducts nerve impulses _____ from the spinal cord

A

Away

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

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

A

Neurotransmitter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

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

A

Corpus callosum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Shorter branches of a neuron which receive nerve impulses

A

Dendrites

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

________ matter in the spinal cord contains mostly cell bodies

A

Grey

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

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

A

Depolarization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

___________ neurons carry nerve impulses AWAY from the CNS

A

Motor/Efferent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

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

A

Cell body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The sodium/potassium pump requires the energy molecule _________

A

ATP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Axon _________ are at the end of the axon

A

Terminals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

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

A

Synapse/Synaptic Cleft

23
Q

_________ matter in the spinal cord contains bundles of myelinated axons

A

White

24
Q

The portion of the cerebrum responsible for thinking

A

Frontal Lobe

25
Q

The portion of the cerebrum responsible for understanding speech

A

Parietal lobe

26
Q

___________ transmissions occurs because of the myelinated nature of the axon

A

Saltatory

27
Q

The coated portions of the axon are called _______

A

Schwann

28
Q

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

A

Sodium (Na+)

29
Q

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

A

Inhibitory

30
Q

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

A

Action potential

31
Q

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

A

Repolarization

32
Q

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

A

Ganglion

33
Q

Another word for “motor” neuron

A

Efferent

34
Q

Another word for “sensory” neuron

A

Afferent

35
Q

The dorsal root conducts nerve impulses ________ the spinal cord

A

Toward

36
Q

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

A

sympathetic

37
Q

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

A

Autonomous

38
Q

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

A

Central canal

39
Q

The part of the brain responsible for conscious thought

A

Frontal Lobe

40
Q

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

A

Refractory

41
Q

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

A

Somatic

42
Q

The “master gland”

A

Pituitary

43
Q

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

A

-70mV

44
Q

Nerves are bundles of individual cells called ______

A

Neurons

45
Q

One component of the CNS

A

Brain/Spinal cord

46
Q

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

A

Parasympathetic

47
Q

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

A

Potassium (K+)

48
Q

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

A

Acetylcholine

49
Q

An involuntary response to which bypasses the brain

A

Reflex

50
Q

The lobe of the cerebrum responsible for hearing and smelling

A

Temporal Lobe

51
Q

A type of neuron found only in the CNS

A

Interneuron

52
Q

_________ contain the neurotransmitters within the axon terminals

A

Vesicles

53
Q

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

A

Noradrenalin

54
Q

The part of the brain responsible for balance

A

Cerebellum

55
Q

Portion of the nervous system that is not the CNS

A

Peripheral

Biology 12 (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions