Brainscape's Knowledge GenomeTM

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


See full index

Histology > Nervous System Part II > Flashcards

Nervous System Part II Flashcards

1
Q

sites of functional apposition where signals are transmitted from one neuron to another or from a neuron to another type of cell

A

SYNAPSES

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

Classification of site of synaptic contact:

A

Axodendritic synapses
Axosomatic synapses
Axoaxonic synapses
Dendrodendritic synapses

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

Classification of Method Of Signal Transmission:

A

Chemical synapse (neurotransmitter)
Electrical synapse

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

Method Of Signal Transmission:

Neuron-neuron; neuron-muscle

A

Chemical synapse (neurotransmitter)

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

Method Of Signal Transmission:

Delay by 0.5 ms

A

Chemical synapse (neurotransmitter)

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

Method Of Signal Transmission:

Gap junctions; nearly instantaneous transmission

A

Electrical synapse

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

Method Of Signal Transmission:

Less common

A

Electrical synapse

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

Common neurotransmitters:

Located in Myoneural junctions; all parasympathethic synapses; prenganglionic sympathetic synapses

A

Acetylcholine

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

Common neurotransmitters:

Activates skeletal muscle, autonomic nerves, brain functions

A

Acetylcholine

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

Common neurotransmitters:

Located in Postganglionic sympathetic synapses

A

Norepinephrine

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

Common neurotransmitters:

increases cardiac output

A

Norepinephine

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

Common neurotransmitters:

Located in CNS; presynaptic sensory and cortex

A

Glutamate

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

Common neurotransmitters:

Most common excitatory neurotransmitter of CNS

A

Glutamate and y-Aminobutyric acid

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

Common neurotransmitters:

Located in the CNS

A

y-Aminobutyric acid
Dopamine
Serotonin
Aspartate
Enkephalins
Endorphins

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

Common neurotransmitters:

Inhibitory and excitatory, depending on receptor

A

Dopamine

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

Common neurotransmitters:

inhibitory

A

glycine

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

Common neurotransmitters:

pain inhibitor; mood control; sleep

A

serotonin

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

Common neurotransmitters:

excitatory

A

aspartate

19
Q

Common neurotransmitters:

analgesic; pain suppression

A

enkephalins and endorphins

20
Q

individual axons enveloped by a myelin sheath

A

NERVE FIBERS

21
Q

produced by oligodendrocytes (CNS) and Schwann cells(PNS)

A

MYELIN SHEATH

22
Q

not continuous along the length of the axon but is interrupted by gaps called nodes of Ranvier.

A

MYELIN SHEATH

23
Q

can be extracted by standard histological techniques. Methods using osmium tetroxide preserve the myelin sheath and stain it black.

A

MYELIN SHEATH

24
Q

regions along the axon that lack myelin and represent discontinuities between adjacent Schwann cells or oligodendrocytes.

A

Nodes of Ranvier

25
Q

Nodes of Ranvier:

axon at the nodes of Ranvier is covered by interdigitated cytoplasmic processes of adjacent Schwann cells that protect the myelin-free surface of the axon

A

PNS

26
Q

Nodes of Ranvier

foot plate of an astrocyte.

A

CNS

27
Q

contains mostly myelinated nerve fibers but also some unmyelinated fibers and neuroglial cells.

A

White matter

28
Q

contains neuronal cell bodies, many unmyelinated fibers, some myelinated fibers, and neuroglial cells.

A

Gray matter

29
Q

Spinal cord gray matter appears in the shape of an ____ in cross-sections of the spinal cord

A

H

30
Q

is located at the periphery (cortex) of the cerebrum and cerebellum.

A

Brain gray matter

31
Q

lies beneath the gray matter in these structures

A

White matter

32
Q

consists of flask-shaped Purkinje cells.

A

Purkinje cell layer (cerebellar cortex only)

33
Q

central nucleus, highly branched (arborized) dendrites, and a single myelinated axon

A

Purkinje cell layer

34
Q

may receive several hundred thousand excitatory and inhibitory impulses to sort and integrate

A

Purkinje cell layer

35
Q

clear fluid produced primarily by cells of the choroid plexus in the ventricles of the brain

A

Cerebrospinal Fluid (CSF)

36
Q

circulates through the ventricles, subarachnoid space, and central canal, bathing and nourishing the brain and spinal cord; shock-absorbing cushion

A

Cerebrospinal Fluid (CSF)

37
Q

90% water and ions; it contains little protein, occasional white blood cells, and infrequent desquamated cells.

A

Cerebrospinal Fluid (CSF)

38
Q

continuously produced and is reabsorbed by arachnoid granulations that transport it into the superior sagittal sinus. If reabsorption is blocked, hydrocephalus may occur.

A

Cerebrospinal Fluid (CSF)

39
Q

Are dendritic nerve endings located in the skin, fascia, muscles, joints and tendons

A

NERVE ENDING RECEPTORS

40
Q

Respond to stimuli related to touch, pressure, temperature and pain

A

NERVE ENDING RECEPTORS

41
Q

Nerve ending which are for light touch

A

Meissner’s Corpuscle

42
Q

Found in dermal papilla of skin

A

Meissner’s Corpuscle

43
Q

For deep touch

A

Paccinian Corpuscle

44
Q

Found in skin and pancreas

A

Paccinian Corpuscle

Histology (37 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions