Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Afifi 2nd > Chapter 7 Pons > Flashcards

Chapter 7 Pons Flashcards

1
Q 
This is the largest group of fibers in the basis pontis
A. Corticospinal fibers
B. Corticobulbar fibers
C. Corticopontocerebellar fibers
D. Corticoolivocerebellar fibers
A

C. Corticopontocerebellar fibers (p. 105)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q 
Which cochlear nuclei receives nerve fibers from the basal turns of the cochlea, thus mediating high-frequency sound?
A. Dorsal
B. Ventral
C. Medial
D. Lateral
A

A. Dorsal (p. 107)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q 
Which cochlear nuclei receives nerve fibers from the apical turns of the cochlea, thus mediating low-frequency sound?
A. Dorsal
B. Ventral
C. Medial
D. Lateral
A

B. Ventral (p. 107)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Most important feedback mechanism in the auditory system
A. Commissure of the inferior colliculus
B. Auditory radiation
C. Probst’s commissure
D. Olivocochlear bundle/Bundle of Rasmussen

A

D. Olivocochlear bundle/Bundle of Rasmussen (p. 109)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q 
Cochlear nerve fibers are central processes of bipolar neurons in which ganglion?
A. Spiral ganglion
B. Scarpa's ganglion
C. Both A and B
D. None of the above
A

A. Spiral ganglion (p. 107)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q 
Vestibular nerve fibers are central processes of bipolar neurons in which ganglion?
A. Spiral ganglion
B. Scarpa's ganglion
C. Both A and B
D. None of the above
A

B. Scarpa’s ganglion (p. 109)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q 
Which part of the vestibular apparatus is responsible for detecting linear acceleration/ detecting a change in velocity with respect to gravity?*
A. Semicircular canals
B. Utricle and saccule
C. Labyrinthine complex
D. Ampulla
A

B. Utricle and saccule (p. 109)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q 
Which part of the vestibular apparatus is responsible for detecting angular acceleration?
A. Semicircular canals
B. Utricle and saccule
C. Labyrinthine complex
D. Ampulla
A

A. Semicircular canals (p. 109)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q 
This vestibular nucleus is characterized in histologic sections by myelinated fibers that traverse it from the vestibular nerve
A. Medial/principal/Schwalbe's nucleus
B. Inferior/spinal nucleus
C. Lateral/Deiter's nucleus
D. Superior/Bechterew's nucleus
A

B. Inferior/spinal nucleus (p. 110)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q 
This vestibular nucleus is characterized in histologic sections by the presence of large multipolar neurons
A. Medial/principal/Schwalbe's nucleus
B. Inferior/spinal nucleus
C. Lateral/Deiter's nucleus
D. Superior/Bechterew's nucleus
A

C. Lateral/Deiter’s nucleus (p. 110)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q 
Exteroceptive fibers from the external ear are peripheral processes of neurons in which ganglion?
A. Geniculate ganglion
B. Submandibular ganglion
C. Pterygopalatine ganglion
D. Spiral ganglion
A

A. Geniculate ganglion (p. 112)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q 
Taste fibers from taste buds in the anterior 2/3 of the tongue are peripheral processes of neurons in which ganglion?
A. Geniculate ganglion
B. Submandibular ganglion
C. Pterygopalatine ganglion
D. Spiral ganglion
A

A. Geniculate ganglion (p. 112)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The nervus intermedius (Wrisberg’s nerve) carries fibers subserving the following EXCEPT:
A. Exteroceptive sensation from the external ear
B. Taste from the anterior 2/3 of the tongue
C. Somatic motor to facial muscles, stapedius, stylohyoid, and posterior belly of the digastric
D. Secretomotor/visceral motor

A

C. Somatic motor to facial muscles, stapedius, stylohyoid, and posterior belly of the digastric (p. 112-114)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q 
Postganglionic parasympathetic fibers from the pterygopalatine ganglion innervate which structure?
A. External ear
B. Lacrimal gland
C. Sublingual gland
D. Submandibular gland
A

B. Lacrimal gland (p. 114)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The chorda tympani and lingual nerves carry preganglionic parasympathetic fibers to which end organ?
A. External ear
B. Taste buds on the anterior 2/3 of the tongue
C. Lacrimal gland
D. Submandibular and sublingual glands

A

D. Submandibular and sublingual glands (p. 114)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The following is/are seen in lesions of the facial nerve at the stylomastoid foramen
A. Loss of taste in the anterior 2/3 of the tongue
B. Impaired salivation
C. Hyperacusis
D. Paralysis of muscles of facial expression
E. Lacrimation

A

D. Paralysis of muscles of facial expression (p. 115)

17
Q

The following is/are seen in lesions of the facial nerve distal to the geniculate ganglion but proximal to the chorda tympani EXCEPT
A. Loss of taste in the anterior 2/3 of the tongue
B. Impaired salivation
C. Hyperacusis
D. Paralysis of muscles of facial expression
E. Lacrimation

A

E. Lacrimation (P. 115)

18
Q

The following is/are seen in lesions of the facial nerve proximal to the geniculate ganglion EXCEPT
A. Loss of taste in the anterior 2/3 of the tongue
B. Impaired salivation
C. Hyperacusis
D. Paralysis of muscles of facial expression
E. Lacrimation
F. None of the above

A

F. None of the above (p. 115)

19
Q 
Largest among the 12 cranial nerves
A. Optic nerve
B. Oculomotor nerve
C. Trigeminal nerve
D. Facial nerve
A

C. Trigeminal nerve (p. 117)

20
Q 
Which of the following is NOT supplied by the portio minor root of CN V?
A. Muscles of mastication
B. Tensor tympani
C. Tensor palati
D. Stylohyoid
E. Anterior belly of the digastric
A

D. Stylohyoid (p. 117)

21
Q 
This nucleus of the trigeminal nerve is concerned  with control of the force of the bite/ sensation of chewing*
A. Mesencephalic nucleus
B. Main sensory nucleus
C. Motor nucleus
D. Spinal nucleus
A

A. Mesencephalic nucleus (p. 117)

22
Q 
This nucleus of the trigeminal nerve is concerned pain and temperature
A. Mesencephalic nucleus
B. Main sensory nucleus
C. Motor nucleus
D. Spinal nucleus
A

D. Spinal nucleus (p. 117)

23
Q

Blood supply of the medial basis pontis and tegmentum
A. Paramedian branches of the basilar artery
B. Short circumferential arteries from the basilar
C. AICA
D. Internal auditory artery
E. Superior cerebellar artery

A

A. Paramedian branches of the basilar artery (p. 118)

24
Q

Blood supply of the ventrolateral region of the basis pontis
A. Paramedian branches of the basilar artery
B. Short circumferential arteries from the basilar
C. AICA
D. Internal auditory artery
E. Superior cerebellar artery

A

B. Short circumferential arteries from the basilar (p. 118)

25
Q

Blood supply of the lateral tegmentum of the lower 2/3 of the pons and ventrolateral cerebellum
A. Paramedian branches of the basilar artery
B. Short circumferential arteries from the basilar
C. AICA
D. Internal auditory artery
E. Superior cerebellar artery

A

C. AICA (p. 118)

26
Q

Blood supply of the auditory, vestibular, and facial cranial nerves
A. Paramedian branches of the basilar artery
B. Short circumferential arteries from the basilar
C. AICA
D. Internal auditory artery
E. Superior cerebellar artery

A

D. Internal auditory artery (p. 118-120)

27
Q

Blood supply of the dorsolateral pons, brachium pontis, brachium conjunctivum, and dorsal reticular formation
A. Paramedian branches of the basilar artery
B. Short circumferential arteries from the basilar
C. AICA
D. Internal auditory artery
E. Superior cerebellar artery

A

E. Superior cerebellar artery (p. 120)

28
Q

NOT true of PPRF*
A. Connects oculomotor and abducens nuclei via the medial lemniscus
B. It is the pontine center for lateral gaze
C. Lesion in the PPRF abolish conjugate lateral gaze
D. None of the above

A

A. Connects oculomotor and abducens nuclei via the medial lemniscus (p. 116)

29
Q

Which of the following is NOT supplied by the AICA?*
A. Lateral tegmentum of the lower 2/3 of the pons
B. Ventrolateral cerebellum
C. Upper medulla
D. None of the above

A

C. Upper medulla (p. 118)

30
Q 
The lateral vestibular nucleus is also known as*
A. Schwalbe's nucleus
B. Roller's nucleus
C. Deiter's nucleus
D. Bechterew's nucleus
A

C. Deiter’s nucleus (p. 110)

Afifi 2nd (19 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions