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Neuroanatomy 1 > Exam 1 Review > Flashcards

Exam 1 Review Flashcards

1
Q

What can be used to identify which cell is the presynaptic neuron in a micrograph of a synapse?
A) vesicles
B) axon hillock
C) voltage gated Na channels
D) dendritic spines
E) Nissl bodies

A

A) vesicles

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2
Q

Visual info from the optic nerve is processed by which nucleus of the diencephalon?

A

lateral geniculate nucleus (LGN)

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3
Q

Unconscious proprioception is relayed to the cerebellum by which spinal nucleus?

A

dorsal nucleus of Clarke

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4
Q

The white matter of the cerebellum is known as _________?

A

arbor vitae

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5
Q

The primary visual cortex is located on the _________ lobe?

A

occipital

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6
Q

The spinal nerve exiting between vertebrae T2 and T3 is named

A

T2

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7
Q

______ is located within the central canal

A

CSF

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8
Q

Where is the caudal end of the spinal cord located in a newborn?

A

L3

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9
Q

Which brain region controls hunger and thirst?

A

hypothalamus

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10
Q

Oligodendrocytes differ from schwann cells in that…

A

each oligodendrocyte forms multiple myelin sheaths, whereas each schwann cell forms only one myelin sheath

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11
Q

What are the 2 enlargements called in the spinal cord?

A

cervical and lumbosacral enlargement

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12
Q

This spinal nuclear group is the site of first order sensory processing and receives input from nociceptive afferents and collaterals from large diameter afferents

A

substantia gelatinosa

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13
Q

A typical peripheral mixed nerve includes all of the following except:
A) sensory axons
B) connective tissue
C) motor axons
D) schwann cells
E) astrocytes

A

E) astrocytes

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14
Q

A patient with multiple sclerosis is a demyelinating disorder, is loosing myelin in her thalamus and cerebellum, which cells are being effected?

A

oligodendrocytes

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15
Q

Where would you find the red nucleus (rubrio, rubral)?

A

midbrain

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16
Q

As you look at the map of the sensory homunculus, which body region is represented most laterally?

A

face

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17
Q

The gap between 2 adjacent myelin segments along an axon is called a ______

A

node

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18
Q

The precentral gyrus of the cerebrum is functionally known as the _______________

A

primary motor cortex

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19
Q

Teledondria are part of __________

A

an axon

20
Q

Striatum or striatal is used to describe which brain region?

A

basal nuclei

21
Q

The volume of gray matter in the spinal cord varies at each level, where has the largest ventral and dorsal horns?

A

L2

22
Q

Golgi type I neurons can be described as ________?

A

long multipolar neurons

23
Q

The dorsal horn of the spinal gray matter is composed of?

A

Lamina I-VI

24
Q

The synaptic communication where 2 different simultaneous stimuli are needed for a depolarization is called _______________

A

spatial summation

25
Q

The marginal zone is also known as ______________

A

lamina I

26
Q

Ventral roots contain _____________

A

motor axons

27
Q

A bundle of axons in the PNS containing both afferent and efferent fibers

A

nerve

28
Q

The basal nuclei belong to the (which brain region)?

A

cerebrum

29
Q

T/F: myelinated and unmyelinated axons appear as gray matter in the CNS

A

false

30
Q

From info shared in lecture, give a reason Dr. Attaway does not like neuroglia being described as glue

A

pick one:
-maintain ionic composition around neurons (homeostasis)
-modulate the rate of propagation (myelination)
-modulate synaptic transmission and neurotransmitter uptake
-guide neuronal development and axon outgrowth
-form synaptic connections
-aid or impede neural injury
-form BBB
-provide an interface between brain and immune system
-regulate interstitial fluid flow
-clean and remove debris through phagocytosis
-act as stem cells- can differentiate and divide

31
Q

This type of neuron is _______________

A

bipolar

32
Q

Which of the following would you find on the dorsal surface of the mesencephalon?
A) cerebral peduncles
B) inferior colliculus
C) middle cerebellar peduncle
D) gracile tubercle
E) decussation of pyramids

A

B) inferior colliculus

33
Q

Pyramids contain ______________?

A

motor pathways

34
Q

Cranial nerves are classified as part of the CNS, PNS, or both?

A

PNS

35
Q

The caudal equina is defined as _________?

A

a bundle of spinal nerves

36
Q

What are the components of a reflex arc in order?

A

1) stimulus
2) receptor
3) sensory neuron
4) interneuron
5) motor neuron
6) effector
7) response

37
Q

Which of the following nuclei of the diencephalon is involved in memory consolidation?
A) paraventricular
B) dorsomedial
C) mammillary
D) arcuate
E) supraoptic

A

C) mammillary

38
Q

This type of glial cell aids in the transfer of energy producing molecules from the bloodstream to the neuron

A

astrocyte

39
Q

Which area of the intermediate zone is found in spinal segments T1-L2 in the small lateral horn and contains neurons that give rise to the preganglionic sympathetic efferent fibers?
A) dorsal root ganglion
B) nucleus proprius
C) intermediolateral cell column
D) lateral funiculus
E) sympathetic trunk

A

C) intermediolateral cell column

40
Q

The terms soma and perikaryon refer to the

A

cell body

41
Q

A funiculus (funiculi) is another term for

A

column

42
Q

Which of the following glial cell is able to move among neurons?
A) microglia
B) astrocytes
C) satelite cells
D) ependymal cells
E) Schwann cells

A

A) microglia

43
Q

In the CNS there are most of these type of neuroglia-

A

astrocytes

44
Q

Which lamina relays motor output to the viscera, giving rise to the efferent ANS

A

VII

45
Q

The vestibulospinal tract is __________

A

motor

46
Q

Which of the following terms describes a bundle of axons that also has a structural or supportive role?
A) lemniscus
B) peduncle
C) commissual
D) funiculus
E) fasiculus

A

B) peduncle

Neuroanatomy 1 (22 decks)

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