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Ch 13 Brainstem 2 - Eye Movements & Pupillary Control

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Neuroscience (Exam 3) Quiz sobre Ch 13 Brainstem 2 - Eye Movements & Pupillary Control, criado por Ben Williams em 20-03-2017.
Ben Williams
Quiz por Ben Williams, atualizado more than 1 year ago
Ben Williams
Criado por Ben Williams mais de 7 anos atrás
100
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Resumo de Recurso

Questão 1

Questão
Which muscles are innervated by CN III - Occulomotor n.?
Responda
  • Medial Rectus m.
  • Superior Rectus m.
  • Inferior Rectus m.
  • Inferior Oblique m.
  • Superior Oblique m.
  • Lateral Rectus m.

Questão 2

Questão
Which muscles are innervated by CN IV - Trochlear n.?
Responda
  • Superior Oblique m.
  • Lateral Rectus m.
  • Medial Rectus m.
  • Superior Rectus m.
  • Inferior Rectus m.
  • Inferior Oblique m.

Questão 3

Questão
Which muscles are innervated by CN VI - Abducens n.?
Responda
  • Lateral Rectus m.
  • Medial Rectus m.
  • Superior Rectus m.
  • Inferior Rectus m.
  • Inferior Oblique m.
  • Superior Oblique m.

Questão 4

Questão
AD-Duction
Responda
  • Medial Rectus m.
  • Inferior Rectus m.
  • Superior Rectus m.
  • Inferior Oblique m.
  • Superior Oblique m.
  • Lateral Rectus m.

Questão 5

Questão
Depression and Extorsion; Depression increases with AB-Duction
Responda
  • Inferior Rectus m.
  • Medial Rectus m.
  • Superior Rectus m.
  • Inferior Oblique m.
  • Superior Oblique m.
  • Lateral Rectus m.

Questão 6

Questão
Elevation and Intorsion; Elevation Increases with AB-Duction
Responda
  • Superior Rectus m.
  • Inferior Rectus m.
  • Medial Rectus m.
  • Inferior Oblique m.
  • Superior Oblique m.
  • Lateral Rectus m.

Questão 7

Questão
Elevation and Extorsion; Elevation increases with AD-Duction
Responda
  • Inferior Oblique m.
  • Superior Oblique m.
  • Lateral Rectus m.
  • Medial Rectus m.
  • Inferior Rectus m.
  • Superior Rectus m.

Questão 8

Questão
Depression and Intorsion; Depression increases with AD-Duction
Responda
  • Superior Oblique m.
  • Lateral Rectus m.
  • Medial Rectus m.
  • Inferior Rectus m.
  • Superior Rectus m.
  • Inferior Oblique m.

Questão 9

Questão
AB-Duction
Responda
  • Lateral Rectus m.
  • Medial Rectus m.
  • Inferior Rectus m.
  • Superior Rectus m.
  • Inferior Oblique m.
  • Superior Oblique m.

Questão 10

Questão
Oculomotor Palsy is characterized by which form of double vision?
Responda

Questão 11

Questão
Trochlear Palsy is characterized by which form of double vision?
Responda

Questão 12

Questão
Abducens Palsy is characterized by which form of double vision?
Responda

Questão 13

Questão
Label the Image depicting the pathways controlling horizontal eye movements.
Image:
37123658-d9c4-4039-b5f7-d2f81c52c5dc (image/jpeg)
Responda
  • Lateral Rectus m.
  • Medial Rectus m.
  • CN VI
  • CN III
  • Oculomotor Nucleus
  • Medial Longitudinal Fasciculus (MLF)
  • Abducens Nucleus
  • Paramedian Pontine Reticular Formation
  • CN II
  • CN IV

Questão 14

Questão
What are the symptoms of Lesion 1?
Image:
60bc124a-abfc-4045-b506-a705c50726cc (image/jpeg)
Responda

Questão 15

Questão
What are the symptoms of Lesion 2?
Image:
d98ffbad-0498-42e9-a1a1-ea6bf58223a3 (image/jpeg)
Responda

Questão 16

Questão
What are the symptoms of Lesion 3?
Image:
4642506e-0ed7-4ec3-bd5f-a011a6c04ae2 (image/jpeg)
Responda

Questão 17

Questão
What are the symptoms of Lesion 4?
Image:
a6ec32eb-b44c-42aa-8021-5c9407929aa2 (image/jpeg)
Responda

Questão 18

Questão
What are the symptoms of Lesion 5?
Image:
e1198a5b-4d97-4a1c-9b4f-b1088528fb88 (image/jpeg)
Responda

Questão 19

Questão
The nuclei located in the Upper Midbrain at the level of the Superior Colliculi and Red Nuclei, just ventral to the Periaqueductal Gray Matter is called the [blank_start]Oculomotor[blank_end] Nuclei and corresponds to CN [blank_start]III[blank_end].
Responda
  • Oculomotor
  • Trochlear
  • Abducens
  • III
  • IV
  • VI

Questão 20

Questão
The nuclei located in the Lower Midbrain at the level of the Inferior Colliculi and the decussation of the Superior Cerebellar Peduncle is the [blank_start]Trochlear[blank_end] Nuclei which corresponds with CN [blank_start]IV[blank_end].
Responda
  • Trochlear
  • Oculomotor
  • Abducens
  • IV
  • III
  • VI

Questão 21

Questão
The nucleus located in the Floor of 4th Ventricle under the Facial Colliculi in the Mid-to-lower Pons is the [blank_start]Abducens[blank_end] Nucleus which corresponds to CN [blank_start]VI[blank_end].
Responda
  • Abducens
  • Trochlear
  • Oculomotor
  • VI
  • III
  • IV

Questão 22

Questão
These are the possible causes of what condition? -Mechanical problems (i.e. Orbital fracture) -Disorders of the extraocular muscles (i.e. Thyroid disease) -Disorders of the neuromuscular junction (i.e. Myasthenia gravis) -Disorders of CN III, IV, VI and their pathways
Responda
  • Diplopia
  • Ptosis
  • Mydriasis
  • Horner’s Syndrome
  • Pseudoptosis

Questão 23

Questão
Patient presents with their left eye in the "Down and Out Position" and slight Ptosis. Which CN do you immediately suspect is involved?
Responda
  • CN III
  • CN IV
  • CN VI

Questão 24

Questão
As you walk into the waiting room to greet a new patient, he turns his ahead away from you and tucks his chin to his chest. Which is the most likely cause of this behavior?
Responda
  • Patient has Vertical Diplopia so he is trying to minimize the effect while focusing on you.
  • Patient is rather shy. Just give him some time to warm up to you.
  • Patient has Abducens Palsy so he is trying to minimize the effect while focusing on you.
  • Patient has Optokinetic Nystagmus and is trying to focus on you.

Questão 25

Questão
Which direction will a patient turn his head to minimize Horizontal Diplopia?
Responda
  • Toward the affected eye
  • Away from the affected eye
  • Head movements alone will not correct a Horizontal Diplopia
  • Away from the affected eye with the chin tucked to the chest

Questão 26

Questão
For Mydriasis [blank_start]Sympathetic[blank_end] Activation causes Contraction of the Pupillary [blank_start]Dilator[blank_end] Muscle and [blank_start]Parasympathetic[blank_end] Relaxation causes Relaxation of the Pupillary [blank_start]Sphincter[blank_end] Muscle.
Responda
  • Dilator
  • Sphincter
  • Sphincter
  • Dilator
  • Sympathetic
  • Parasympathetic
  • Parasympathetic
  • Sympathetic

Questão 27

Questão
Miosis requires relaxation of the Sympathetic NS and activation of the Parasympathetic NS.
Responda
  • True
  • False

Questão 28

Questão
Miosis requires activation of the Sympathetic NS and relaxation of the Parasympathetic NS.
Responda
  • True
  • False

Questão 29

Questão
Mydriasis can be caused by which of the following?
Responda
  • Pupillary Light Reflex responding to decreased light entering the eye.
  • Pupillary Light Reflex responding to increased light entering the eye.
  • Accommodation Reflex
  • Parasympathetic Activation

Questão 30

Questão
The Accommodation Reflex...
Responda
  • occurs when an object being focused upon moves closer
  • occurs when an object being focused upon moves further away
  • is related to Mydriasis
  • is related to Pseudoptosis
  • is related to Ptosis

Questão 31

Questão
The following are possible causes for which condition? -Horner’s Syndrome -Oculomotor Palsy -Myasthenia Gravis
Responda
  • Ptosis
  • Pseudoptosis
  • Miosis
  • Mydriasis
  • Optokinetic Nystagmus

Questão 32

Questão
Which of the following describe Optokinetic Nystagmus?
Responda
  • Allows the eye to follow objects in motion when the head remains stationary
  • Composed of slow eye movements in one direction interrupted repeatedly by fast, saccade-like eye movements in the opposite direction
  • Stabilizes the eyes on a visual image during head and body movements
  • Occurs normally
  • Indicative of CN III lesion
  • Indicative of CN VI lesion

Questão 33

Questão
[blank_start]Vestibulo-Ocular Reflex[blank_end] stabilizes the eyes on a visual image during head and body movements
Responda
  • Vestibulo-Ocular Reflex
  • Optokinetic Nystagmus
  • Pseudoptosis

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