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Intro to Nervous System/Sensory System

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- Neuro (Midterm ) Quiz on Intro to Nervous System/Sensory System, created by Jennifer Gay on 13/02/2018.
Jennifer Gay
Quiz by Jennifer Gay, updated more than 1 year ago
Jennifer Gay
Created by Jennifer Gay over 6 years ago
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Resource summary

Question 1

Question
Collections of axons that connect different parts of the cortex within the same hemisphere are called commissural pathways.
Answer
  • True
  • False

Question 2

Question
Choose the correct order of membranes that cover the surface of the brain and spinal cord, from most superficial to deep
Answer
  • arachnoid mater, dura mater, pia mater
  • dura mater, pia mater, arachnoid mater
  • dura mater, arachnoid mater, pia mater
  • pia mater, arachnoid mater, dura mater

Question 3

Question
[blank_start]Subarachnoid hemorrhage[blank_end] occurs between the arachnoid and pial membranes, typically due to the rupture of an aneurysm
Answer
  • Subdural hemorrhage
  • Subarachnoid hemorrhate
  • Epidural hemorrhage

Question 4

Question
[blank_start]Hydrocephalus[blank_end] is the result of an obstruction the the flow of cerebral spinal fluid causing enlarged ventricles
Answer
  • Hydrocephalus

Question 5

Question
The cortex is uniform throughout the surface of the brain.
Answer
  • True
  • False

Question 6

Question
The frontal lobe is responsible for: (select all that apply)
Answer
  • initiation of motor movement
  • higher order language functions
  • executive function
  • planning movement
  • processing auditory information

Question 7

Question
Each hemisphere of the brain processes sensory information from, and controls motor activity of
Answer
  • the ipsilateral side
  • the contralateral side

Question 8

Question
The following are perceived by the somatosensory system (select all that apply)
Answer
  • pain
  • vibration
  • smell
  • proprioception
  • taste
  • discriminitive touch

Question 9

Question
Pain is felt when [blank_start]free nerve endings[blank_end] are stimulated.
Answer
  • free nerve endings

Question 10

Question
Meissner's corpuscles are receptors that are responsible for discriminative touch.
Answer
  • True
  • False

Question 11

Question
The spinal cord
Answer
  • is made up of 4 levels: cervical, thoracic, lumbar, and sacral
  • Contains 25 nerves
  • is comprised of central white matter and peripheral gray matter

Question 12

Question
The spinal cord only relays all of the motor information from the brain to the body
Answer
  • True
  • False

Question 13

Question
[blank_start]Motor[blank_end] pathways in the spinal cord are [blank_start]two[blank_end] neuron pathways. [blank_start]Sensory[blank_end] pathways are [blank_start]three[blank_end] neuron pathways.
Answer
  • two
  • Sensory
  • Motor
  • three

Question 14

Question
Which is true about the sensory pathways of the spinal cord
Answer
  • The dorsal columns are responsible for discriminative touch, vibration, and proprioception and the lateral spinothalamic tracts are responsible for pain and temperature.
  • The dorsal columns are responsible for discriminative touch, pain, and proprioception and the lateral spinothalamic tracts are responsible for vibration and touch.
  • The dorsal columns are responsible for pain and vibration, and the lateral spinothalamic tracts are responsible for discriminative touch, proprioception and temperature.

Question 15

Question
Conscious proprioception receptors are [blank_start]muscle spindles[blank_end], [blank_start]Golgi tendon organs[blank_end], and [blank_start]Pacinian corpuscles[blank_end]
Answer
  • muscle spindles
  • Golgi tendon organs
  • Pacinian corpuscles

Question 16

Question
The dorsal column pathways is a two-neuron sensory pathway
Answer
  • True
  • False

Question 17

Question
In the dorsal columns, the fasciculus cuneatus is laterally located and the fasciculus gracilis is medially located.
Answer
  • True
  • False

Question 18

Question
When do the central processes of the fibers travel within the fasciculus cuneatus
Answer
  • T3 and above
  • S1 and above
  • C6 and above
  • T6 and above

Question 19

Question
An easy way to remember which pathway travels to the upper and lower extremities is: [blank_start]cuneAtus[blank_end] - Arm [blank_start]graciLis[blank_end] - Leg
Answer
  • cuneAtus
  • graciLis

Question 20

Question
A lesion of the dorsal columns causes [blank_start]ipsilateral[blank_end] deficits in discriminative touch, vibration, and conscious proprioception.
Answer
  • ipsilateral
  • contralateral

Question 21

Question
A lesion involving the ascending sensory information after it has crossed in the brainstem will result in ipsilateral deficits to discriminative touch, vibration, and conscious proprioception
Answer
  • True
  • False

Question 22

Question
Abnormal sensory perception , such as numbness or tingling, is referred to as [blank_start]paresthesias[blank_end].
Answer
  • paresthesias

Question 23

Question
Sharp, localized pain is conveyed by
Answer
  • unmyelinated C fibers
  • Lightly myelinated A-delta fibers

Question 24

Question
A lesion of the lateral spinothalamic tract will results in deficits in pain and temperature sensation on the [blank_start]contralateral[blank_end] side of the body below the level of the lesion.
Answer
  • ipsilateral
  • contralateral

Question 25

Question
The thalamus is the sensory relay station for virtually all incoming sensory input heading to the cortex
Answer
  • True
  • False

Question 26

Question
A map of the body along the surface of both the primary motor and somatosensory areas of the cortex is called a [blank_start]homunculus[blank_end].
Answer
  • homunculus

Question 27

Question
On the homunculus, the largest areas (the areas of highest sensory acuity) are:
Answer
  • the lips
  • the face
  • the fingertips
  • the toes
  • the hands

Question 28

Question
The function of the eye is to focus photons onto the retina
Answer
  • True
  • False

Question 29

Question
The [blank_start]fovea[blank_end] is the area of highest visual acuity.
Answer
  • fovea
  • macula
  • retina
  • pupil

Question 30

Question
As ambiet light increases, the pupils
Answer
  • increase in circumference
  • decrease in circumference
  • undergo no change in circumference

Question 31

Question
When looking at objects off in the distance, the lens
Answer
  • widens
  • narrows
  • stays the same

Question 32

Question
Rods are sensitive to both light and color.
Answer
  • True
  • False

Question 33

Question
after light hits the photoreceptors of the retina, the information is sent to [blank_start]retinal ganglion cells[blank_end].
Answer
  • retinal ganglion cells

Question 34

Question
Which three interneurons lie between the photoreceptors and the retinal ganglion cells?
Answer
  • horizontal
  • bipolar
  • psudounipolar
  • amacrine

Question 35

Question
What is the function or horizontal and amacrine cells?
Answer
  • to receive information from the photo receptors and transmit the information onto retinal ganglion cells
  • to sharpen or focus the connections between the photoreceptors, bipolar cells, and retinal ganglion cells
  • to project the information to a number of nuclei in the brain

Question 36

Question
What is the lateral geniculate nucleus?
Answer
  • the nucleus that projects axons to the occipital cortex
  • the nucleus that relays information to the primary visual cortex
  • the specific nucleus in the thalamus that receives information from the retinal ganglion cells

Question 37

Question
The [blank_start]left LGN[blank_end] receives visual input from the right visual field, and the [blank_start]right LGN[blank_end] receives visual input from the left visual field.
Answer
  • left LGN
  • right LGN

Question 38

Question
A lesion involving the LGN or occipital cortex on the right will result in
Answer
  • loss of vision in the left eye
  • loss of vision in the left visual field of both eyes
  • loss of vision in the right eye
  • loss of vision in the right visual field of both eyes

Question 39

Question
The retinal ganglion cells in the fovea send information about contour, contrast, edges, form, and color
Answer
  • True
  • False

Question 40

Question
Rods, or the retinal ganglion cells in the periphery of the retina, send information about light only.
Answer
  • True
  • False

Question 41

Question
A lesion involving the optic nerve results in loss of vision of [blank_start]one eye[blank_end].
Answer
  • one eye

Question 42

Question
What is visual agnosia?
Answer
  • lack of insight
  • inability to form normal visual percepts

Question 43

Question
[blank_start]Prosopagnosia[blank_end] is the inability to identify faces as a result of a lesion in the temporal lobe.
Answer
  • Asterognosia
  • Prosopagnosia
  • Anosognosia
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