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
2
Q
A bundle of fibers that form a specific tract may also be called a \_\_\_\_\_\_\_. Funiculus Nucleus Fasiculus Gyrus
A
Fasiculus
3
Q
In gerneral, ganglia are found in the _____, while groups of neurons in the _____ are called nuclei.
A
PNS, CNS
4
Q
Which region of the neural plate forms the peripheral nervous system? Neural Crest Neural tube Neural fold Neural groove
A
Neural Crest
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
6
Q
The filum terminale is a remnant of what material? Gray matter Dura matter Arachnoid matter Pia matter
A
Pia matter
7
Q
Somatosensory cortex is also called the \_\_\_\_ gyrus. Precentral (motor) Lingual Postcentral Transverse temporal
A
Postcentral
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
9
Q
Which is a primary brain vesicle? Diencephalon Myelencephalon Telencephalon Rohmbencephalon
A
Rohmbencephalon
10
Q
Motor neurons within the ventral horns are examples of \_\_\_\_\_ type neurons? Unipolar Mulltipolar Bipolar Polypolar
A
Multipolar
11
Q
What is the most rostral part of the CNS? Spinal ganglion Autonomic ganglion Spinal cord Brain
A
Brain
12
Q
All of the following are characteristics of a synapse except ______.
A
Synapses only occur at the presynaptic axon and postsynaptic dendrite.
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
14
Q
Which axons leave the spinal cord in the ventral root? Somatic sensory Visceral afferent Somatic motor Postganglionic sympathetic
A
Somatic motor
15
Q
All of the neurons in the adult are descendants of cells of the embryonic \_\_\_\_\_\_\_. Neural tube Ectoderm Neural crest Mesoderm
A
Ectoderm
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
17
Q
The medulla is the adult derivative of the \_\_\_\_\_\_. Telencephalon Diencephalon Myelencephalon Metecephalon
A
Myelencephalon
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
19
Q
How many neurons participate in stretch reflex such as the knee jerk reflex?
A
Two
20
Q
What cortical layer contains Betz cells? Molecular Inner granule Fusiform Inner pyramidal
A
Inner Pyramidal
21
Q
Which is not a symptom of spinal nerve root compression? Pain in muscles Ptosis Loss of tendon reflex Motor weakness
A
Ptosis
22
Q
In the cerebral hemispheres, inferior and ______ are the same direction.
A
Ventral
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
24
Q
The brain flexure that develops between the metencephalon and the myelencephalon is the \_\_\_\_\_ flexure. Midbrain Cervical Pontine Cephalic
A
Pontine
25
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Alpha motor neurons innervate _______.
Intrafusal muscle fibers
Golgi tendon organs
Extrafusal muscel fibers
Intervertebral discs
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Extrafusal fibers
26
A recurrent branch of the spinal nerve innervates all of the following except:
Skin of the back
27
What artery supplies the visual cortex?
Posterior cerebral artery
28
What artery crosses the corpus callosum?
Anterior cerebral artery
29
Which microglial cell myelinates the CNS?
Oligodendrocyte
30
Which microglial cell myelinates the PNS?
Schwaan Cells
31
Which is gray matter structure?
Pyramid
32
Which of the following are neural crest cells?
Sensory neurons
33
What lines the ventricles?
Ependymal cells
34
What kind of fiber is the corpus callosum
Comissural
35
Where is the cerebellum?
Diencephalon
36
What connects the lateral ventricle and the 3rd ventricle?
Interventricular septum
37
During a lumbar puncture, which of the following is not punctured?
Pia matter
38
What lobe is somatosensory?
Parietal lobe
39
Which lobe deals with emotions?
Limbic lobe
40
Where is CSF located?
Subarachnoid space
41
What is gray matter in the midbrain?
Nucleus
42
Which of the following is the most rostral part of the CNS?
Telencephalon
43
Which week does the nervous system start to develop in the embryo?
3rd week
44
Which of the following develops from the telencephalon?
Cerebrum
45
What is a tract?
Bundle of nerve fibers in the CNS
46
What cell type is in the DRG?
Pseudounipolar
47
What drains the internal structures of the brain?
Great cerebral vein of Galen
48
Which area of the brain is for speech?
Broca's area
49
Which vein drains the brain?
Internal jugular vein
50
Which of the following is adjacent to the brain?
Pia matter
51
Which of the following did the cerebellum develop from?
Metencephalon
52
Which of the following did the cerebellum develop from?
Metencephalon
53
Which cell is phagocytic?
Microglial
54
What plane divides the body into right and left halves?
Sagittal
55
What is found in low concentrations in the ?
Protein
56
What connects Weinecki's to Brocca's?
Arcuate fibers
57
What is the Cerebellum?
Metencephalon
58
Not found in the forebrain?
Mescencphelon (midbrain)
59
What is derived from neural crest cells?
Sensory neurons
60
Amount of CSF found in a normal cross section?
150mL
61
What does the inferior temporal supply?
Middle cerebral
62
What crosses the corpus callosum?
Anterior cerebral
63
Importance of the notocord?
Induction of ectoderm
64
Most common synapse?
Axo-dendritic
65
Connects the 3rd ventricule to the lateral ventricle?
Intraventricular Foramen
66
Where is the Cerebral aqueduct located?
Midbrain (Mescencephalon0
67
Sensory are _____ and in the spinal cord, and ______ in the brain stem.
Dorsal, lateral
68
Vision comes from the ______
Occipital lobe
69
Somatosensory is in the:
Parietal lobe
70
What are deep structures innervated by?
The great Cerebral vein of Galen
71
What is adjacent to the brain?
Pia matter
72
What drains the cranium?
Internal jugular vein
73
What makes up CSF?
Ependymal cells
74
What is a bundle of nerve fibers in the CNS?
Tract
