CNS Exam 1 Flashcards

1
Q
What receptor is found at the muscle tendon junction?
A. Muscle Spindle 
B. Golgi Tendon Organ 
C. Free nerve ending 
D. Pacinnian Corpuscle
A

B. Golgi tendon organ

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2
Q
A bundle of fibers that form a specific tract may also be called a \_\_\_\_\_\_\_. 
Funiculus 
Nucleus 
Fasiculus 
Gyrus
A

Fasiculus

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3
Q

In gerneral, ganglia are found in the _____, while groups of neurons in the _____ are called nuclei.

A

PNS, CNS

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4
Q
Which region of the neural plate forms the peripheral nervous system? 
Neural Crest 
Neural tube 
Neural fold 
Neural groove
A

Neural Crest

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5
Q
Which classification of fibers joins one part of the cerebral cortex to another part within the same hemisphere? 
Association 
Projection 
Commissural 
Cotton
A

Association

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6
Q
The filum terminale is a remnant of what material? 
Gray matter
Dura matter
Arachnoid matter
Pia matter
A

Pia matter

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7
Q
Somatosensory cortex is also called the \_\_\_\_ gyrus. 
Precentral (motor) 
Lingual
Postcentral 
Transverse temporal
A

Postcentral

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8
Q
Which cranial nerve makes the border between the Basilar pons and the middle cerebral peduncle? 
CN I 
CN III
CN IV 
CN V
A

CN IV

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9
Q
Which is a primary brain vesicle? 
Diencephalon 
Myelencephalon 
Telencephalon 
Rohmbencephalon
A

Rohmbencephalon

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10
Q
Motor neurons within the ventral horns are examples of \_\_\_\_\_ type neurons? 
Unipolar 
Mulltipolar 
Bipolar 
Polypolar
A

Multipolar

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11
Q
What is the most rostral part of the CNS? 
Spinal ganglion 
Autonomic ganglion 
Spinal cord 
Brain
A

Brain

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12
Q

All of the following are characteristics of a synapse except ______.

A

Synapses only occur at the presynaptic axon and postsynaptic dendrite.

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13
Q
The connection between most neurons in the mammalian nervous system is \_\_\_\_\_. 
The synapse 
The syncitium
A gap junction 
An initial segment
A

The synapse

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14
Q
Which axons leave the spinal cord in the ventral root? 
Somatic sensory 
Visceral afferent 
Somatic motor 
Postganglionic sympathetic
A

Somatic motor

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15
Q
All of the neurons in the adult are descendants of cells of the embryonic \_\_\_\_\_\_\_.
Neural tube
Ectoderm 
Neural crest 
Mesoderm
A

Ectoderm

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16
Q
Which of the embryonic brain vesicles contain cells which eventually become the neurons of the cerebral cortex? 
Telencephalon 
Diencephalon 
Myelencephalon 
Metecephalon
A

Telencephalon

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17
Q
The medulla is the adult derivative of the \_\_\_\_\_\_. 
Telencephalon 
Diencephalon 
Myelencephalon 
Metecephalon
A

Myelencephalon

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18
Q

The main bundle of fibers that connects the cerebral hemispheres to the brainstem and spinal cord are called the crus cerebri or the ______.

A

Cerebral peduncles

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19
Q

How many neurons participate in stretch reflex such as the knee jerk reflex?

A

Two

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20
Q
What cortical layer contains Betz cells? 
Molecular 
Inner granule 
Fusiform 
Inner pyramidal
A

Inner Pyramidal

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21
Q
Which is not a symptom of spinal nerve root compression? 
Pain in muscles 
Ptosis 
Loss of tendon reflex 
Motor weakness
A

Ptosis

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22
Q

In the cerebral hemispheres, inferior and ______ are the same direction.

A

Ventral

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23
Q
The PNS \_\_\_\_\_\_\_\_\_. 
Includes the spinal cord
Includes cranial nerves
Is sheathed in fluid filled spaces 
Is surrounded by bones
A

Includes cranial nerves

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24
Q
The brain flexure that develops between the metencephalon and the myelencephalon is the \_\_\_\_\_ flexure. 
Midbrain 
Cervical 
Pontine 
Cephalic
A

Pontine

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25
Q
Alpha motor neurons innervate \_\_\_\_\_\_\_. 
Intrafusal muscle fibers 
Golgi tendon organs 
Extrafusal muscel fibers 
Intervertebral discs
A

Extrafusal fibers

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26
Q

A recurrent branch of the spinal nerve innervates all of the following except:

A

Skin of the back

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27
Q

What artery supplies the visual cortex?

A

Posterior cerebral artery

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28
Q

What artery crosses the corpus callosum?

A

Anterior cerebral artery

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29
Q

Which microglial cell myelinates the CNS?

A

Oligodendrocyte

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30
Q

Which microglial cell myelinates the PNS?

A

Schwaan Cells

31
Q

Which is gray matter structure?

A

Pyramid

32
Q

Which of the following are neural crest cells?

A

Sensory neurons

33
Q

What lines the ventricles?

A

Ependymal cells

34
Q

What kind of fiber is the corpus callosum

A

Comissural

35
Q

Where is the cerebellum?

A

Diencephalon

36
Q

What connects the lateral ventricle and the 3rd ventricle?

A

Interventricular septum

37
Q

During a lumbar puncture, which of the following is not punctured?

A

Pia matter

38
Q

What lobe is somatosensory?

A

Parietal lobe

39
Q

Which lobe deals with emotions?

A

Limbic lobe

40
Q

Where is CSF located?

A

Subarachnoid space

41
Q

What is gray matter in the midbrain?

A

Nucleus

42
Q

Which of the following is the most rostral part of the CNS?

A

Telencephalon

43
Q

Which week does the nervous system start to develop in the embryo?

A

3rd week

44
Q

Which of the following develops from the telencephalon?

A

Cerebrum

45
Q

What is a tract?

A

Bundle of nerve fibers in the CNS

46
Q

What cell type is in the DRG?

A

Pseudounipolar

47
Q

What drains the internal structures of the brain?

A

Great cerebral vein of Galen

48
Q

Which area of the brain is for speech?

A

Broca’s area

49
Q

Which vein drains the brain?

A

Internal jugular vein

50
Q

Which of the following is adjacent to the brain?

A

Pia matter

51
Q

Which of the following did the cerebellum develop from?

A

Metencephalon

52
Q

Which of the following did the cerebellum develop from?

A

Metencephalon

53
Q

Which cell is phagocytic?

A

Microglial

54
Q

What plane divides the body into right and left halves?

A

Sagittal

55
Q

What is found in low concentrations in the ?

A

Protein

56
Q

What connects Weinecki’s to Brocca’s?

A

Arcuate fibers

57
Q

What is the Cerebellum?

A

Metencephalon

58
Q

Not found in the forebrain?

A

Mescencphelon (midbrain)

59
Q

What is derived from neural crest cells?

A

Sensory neurons

60
Q

Amount of CSF found in a normal cross section?

A

150mL

61
Q

What does the inferior temporal supply?

A

Middle cerebral

62
Q

What crosses the corpus callosum?

A

Anterior cerebral

63
Q

Importance of the notocord?

A

Induction of ectoderm

64
Q

Most common synapse?

A

Axo-dendritic

65
Q

Connects the 3rd ventricule to the lateral ventricle?

A

Intraventricular Foramen

66
Q

Where is the Cerebral aqueduct located?

A

Midbrain (Mescencephalon0

67
Q

Sensory are _____ and in the spinal cord, and ______ in the brain stem.

A

Dorsal, lateral

68
Q

Vision comes from the ______

A

Occipital lobe

69
Q

Somatosensory is in the:

A

Parietal lobe

70
Q

What are deep structures innervated by?

A

The great Cerebral vein of Galen

71
Q

What is adjacent to the brain?

A

Pia matter

72
Q

What drains the cranium?

A

Internal jugular vein

73
Q

What makes up CSF?

A

Ependymal cells

74
Q

What is a bundle of nerve fibers in the CNS?

A

Tract