BIO 330 Exam 3 Review!!

Here are four different patients attempting to look to the right voluntarily. Patient A is fine, but the rest have issues.

Describe what is happening with patient C.

• Damage to L abducens nerve

• Damage to L PPRF

• Damage to L oculomotor nerve

• Damage to L MLF

Answer explanation

Unable to communicate w/ left eye to bring left eye medially

Describe the visual field for someone who has a damaged R optic nerve.

Answer explanation

Loss of all vision from R eye

The right ophthalmic branch of the trigeminal nerve innervates the _________.

• Right cheekbone area

• Right eyebrow area

• Right pupil

• Right jaw

This nucleus contains UMNs that will innervate ganglia that slows the heartbeat.

• Dorsal motor X

• Edinger-Westphal

• Superior salivatory

• Nucleus ambiguus

Tags

NGSS.HS-LS1-3

Here are four different patients attempting to look to the right voluntarily. Patient A is fine, but the rest have issues.

Describe what is happening with patient D.

• Damage to R abducens nucleus

• Damage to L PPRF

• Damage to R abducens nerve

• Damage to L MLF

Answer explanation

Unable to communicate w/ left eye to bring left eye medially

The nuc. ambiguus is an example of a/an ________ nucleus and the hypoglossal nucleus is an example of a/an ________ nucleus.

• somatic motor; somatic motor

• branchial motor; visceral motor

• somatic motor; visceral motor

• branchial motor; somatic motor

• visceral motor; special sensory

Where are the upper motor neurons for voluntary lateral gaze found?

• Optic nerve

• Brainstem - midbrain

• Frontal eye fields

• Occipital lobe

What nerve innervates the superior oblique muscle?

Describe the function of the MLF.

Answer explanation

Connects brainstem vestibular/balance nuclei to ocular nuclei.

Which of the following is NOT a parasympathetic (visceral) motor nucleus?

• Nucleus solitarius

• Dorsal motor X

• Salivatory nuclei

• Edinger-Westphal