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Unit 3 Slide 1 Quiz #1 Slides 1-29

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Neuroanatomy; Dr. Boaz; CSD
Mary Aragona
Quiz by Mary Aragona, updated more than 1 year ago
Mary Aragona
Created by Mary Aragona about 8 years ago
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Question 1

Question
[blank_start]Striated[blank_end] muscles are made up of many [blank_start]fibers[blank_end] which are made up of many [blank_start]muscle cells.[blank_end]
Answer
  • Striated
  • fibers
  • muscle cells.

Question 2

Question
A large mass of muscles is made up of [blank_start]extrafusal fibers[blank_end].
Answer
  • extrafusal fibers

Question 3

Question
Fibers contain two types of protein, [blank_start]actin[blank_end] and [blank_start]myosin[blank_end].
Answer
  • actin
  • myosin

Question 4

Question
Actin is a [blank_start]thin[blank_end] filament, and myosin is a [blank_start]thick[blank_end] filament.
Answer
  • thin
  • thick

Question 5

Question
Muscles are attached to [blank_start]bones[blank_end] with [blank_start]tendons[blank_end].
Answer
  • bones
  • tendons

Question 6

Question
Muscles are made up of [blank_start]muscle fibers[blank_end], which are made up of [blank_start]myofibrils[blank_end], which are made up of [blank_start]sacromeres[blank_end].
Answer
  • myofibrils
  • muscle fibers
  • sacromeres

Question 7

Question
Proteins [blank_start]contract[blank_end] when stimulated and cause the muscle to [blank_start]shorten[blank_end].
Answer
  • contract
  • shorten

Question 8

Question
[blank_start]Striated[blank_end] muscles are named after their [blank_start]striped[blank_end] appearance. They work in [blank_start]pairs[blank_end] with a [blank_start]reciprocal[blank_end] muscle, for example the biceps and triceps.
Answer
  • Striated
  • striped
  • pairs
  • reciprocal

Question 9

Question
Each muscle cell is either [blank_start]contracted[blank_end] or not, and [blank_start]number[blank_end] of muscle cells [blank_start]contracted[blank_end] determines [blank_start]tone[blank_end].
Answer
  • contracted
  • number
  • contracted
  • tone

Question 10

Question
Normally muscle is neither completely [blank_start]flaccid[blank_end] nor completely [blank_start]contracted[blank_end].
Answer
  • flaccid
  • contracted

Question 11

Question
The basic element of the motor unit system consists of [blank_start]lower motor neuron[blank_end], [blank_start]extrafusal muscle fiber[blank_end] cells, and the [blank_start]neuromuscular junction[blank_end].
Answer
  • lower motor neuron
  • extrafusal muscle fiber
  • neuromuscular junction

Question 12

Question
The basic element of the motor system is the [blank_start]motor unit[blank_end].
Answer
  • motor unit

Question 13

Question
A [blank_start]lower[blank_end] motor neuron, or an [blank_start]alpha[blank_end] motor neuron, can innervate many [blank_start]extrafusal[blank_end] muscle fibers.
Answer
  • lower
  • alpha
  • extrafusal

Question 14

Question
The neuromuscular junction is the connection between the [blank_start]LMN[blank_end] and the [blank_start]motor end plate[blank_end].
Answer
  • LMN
  • motor end plate

Question 15

Question
Motor units with [blank_start]fewer[blank_end] fibers cells tend to control more [blank_start]fine-grained[blank_end] muscle movements than movements with [blank_start]more[blank_end] fiber cells.
Answer
  • fewer
  • fine-grained
  • more

Question 16

Question
Alpha motor neurons are large [blank_start]multipolar[blank_end] neurons that innervate [blank_start]skeletal[blank_end] muscle.
Answer
  • multipolar
  • skeletal

Question 17

Question
[blank_start]Somas[blank_end] (cell bodies) are in the ventral [blank_start]horn[blank_end] of the [blank_start]brain stem[blank_end] and [blank_start]spinal cord[blank_end], axons extend through the ventral [blank_start]horn[blank_end] and [blank_start]root[blank_end].
Answer
  • Somas
  • horn
  • brain stem
  • spinal cord
  • horn
  • root

Question 18

Question
A neuromuscular junction is the meeting of an [blank_start]axon terminal[blank_end] and a [blank_start]muscle cell.[blank_end]
Answer
  • axon terminal
  • muscle cell.

Question 19

Question
The junction works like a [blank_start]synapse[blank_end] between nerves, with the transmitter [blank_start]acetylcholine[blank_end].
Answer
  • synapse
  • acetylcholine

Question 20

Question
The [blank_start]prefrontal cortex[blank_end], (BA [blank_start]9[blank_end] & [blank_start]10[blank_end]) controls higher order control of motor functioning (planning, organization, and logic)
Answer
  • prefrontal cortex
  • 9
  • 10

Question 21

Question
The frontal [blank_start]eye fields[blank_end] (BA 8) are responsible for [blank_start]voluntary[blank_end] [blank_start]eye[blank_end] movement.
Answer
  • eye fields
  • voluntary
  • eye

Question 22

Question
Broca's Area (BA 44 & 45) is responsible for generating [blank_start]motor programs[blank_end] used for [blank_start]production of speech[blank_end].
Answer
  • motor programs
  • production of speech

Question 23

Question
The primary motor area (BA [blank_start]4[blank_end]) is [blank_start]anterior[blank_end] to the central sulcus.
Answer
  • 4
  • anterior

Question 24

Question
The primary motor area is directly involved in the production of [blank_start]voluntary movement[blank_end]. It demonstrates [blank_start]somatotopic[blank_end] organization, where each hemisphere demonstrates [blank_start]contralateral[blank_end] control.
Answer
  • voluntary movement
  • somatotopic
  • contralateral

Question 25

Question
The [blank_start]primary motor cortex[blank_end] is the beginning of the [blank_start]pyramidal pathway[blank_end]. The neurons are arranged in [blank_start]columns[blank_end] that control a small group of [blank_start]syergistic[blank_end] muscles.
Answer
  • syergistic
  • columns
  • primary motor cortex
  • pyramidal pathway

Question 26

Question
The pyramidal system [blank_start]directly[blank_end] controls [blank_start]voluntary[blank_end] movement, but the extrapyramidal system [blank_start]indirectly[blank_end] controls [blank_start]voluntary[blank_end] and [blank_start]involuntary[blank_end] movement.
Answer
  • directly
  • voluntary
  • indirectly
  • voluntary
  • involuntary

Question 27

Question
Mysthenia gravis involves motor problems with the [blank_start]post-synaptic receptors[blank_end]. Lambert-Eaton involves issues with the [blank_start]pre-synaptic channels[blank_end].
Answer
  • post-synaptic receptors
  • pre-synaptic channels

Question 28

Question
The columns are then arranged in [blank_start]clusters[blank_end] that control [blank_start]larger groups[blank_end] of muscles.
Answer
  • clusters
  • larger groups

Question 29

Question
The pyramidal system is named for the large pyramidal ([blank_start]Betz[blank_end]) cells. It is responsible for [blank_start]direct control[blank_end] of volitional movement. It is made up of two major tracts, [blank_start]corticospinal[blank_end] and [blank_start]corticonuclear[blank_end].
Answer
  • Betz
  • direct control
  • corticospinal
  • corticonuclear

Question 30

Question
Betz cells are located primarily within the [blank_start]motor strip[blank_end] ([blank_start]pre-central gyrus[blank_end])
Answer
  • motor strip
  • pre-central gyrus

Question 31

Question
The motor system is a [blank_start]two[blank_end] neuron chain that links the cerebral cortex to the skeletal muscles via one of the two [blank_start]pyramidal pathways.[blank_end]
Answer
  • two
  • pyramidal pathways.

Question 32

Question
The upper motor neuron is entirely within the [blank_start]CNS[blank_end] and the lower motor neuron goes from the [blank_start]CNS[blank_end] to the muscle.
Answer
  • CNS
  • CNS

Question 33

Question
The [blank_start]corticonuclear[blank_end] [blank_start]pathway[blank_end] include voluntary pathways for movement of all speech and swallowing muscles, except respiration.
Answer
  • corticonuclear
  • pathway

Question 34

Question
It begins at the [blank_start]bilateral motor cortices[blank_end] and terminates at the [blank_start]motor nuclei[blank_end] of cranial nerves in the [blank_start]brainstem[blank_end].
Answer
  • bilateral motor cortices
  • motor nuclei
  • brainstem

Question 35

Question
Exceptions to the bilateral innervation include the [blank_start]tongue[blank_end] (intermediate) and the [blank_start]trapezius[blank_end] and [blank_start]lower[blank_end] face (unilateral).
Answer
  • tongue
  • trapezius
  • lower

Question 36

Question
Upper motor neurons are also known as [blank_start]first order[blank_end] neurons. LMN are also known as [blank_start]second order[blank_end] motor neurons, and make up the [blank_start]final common pathway[blank_end].
Answer
  • first order
  • second order
  • final common pathway

Question 37

Question
LMN receive input from many [blank_start]pathways[blank_end] in addition to the UMN.
Answer
  • pathways
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