Week 7

From caudal to rostral, what the regions of the brainstem?

• medulla oblongata, pons, midbrain, and diencephalon

• diencephalon, midbrain, pons, medulla oblongata

• medulla oblongata, pons, and midbrain

• midbrain, pons, medulla oblongata

In the labeled image above, which one is the optic nerve?

• A

• B

• C

• D

What is the role of the ascending reticular activating system (ARAS)?

• The ARAS is responsible for integrating somatosensory information from the body

• The ARAS is responsible for regulating emotions and motivating areas of the brain

• The ARAS is responsible for coordinating motor function

• The ARAS is responsible for regulating sleep, alertness, and attention

In the image above, which letter indicates the position of the cranial nerve responsible for movement of the tongue?

• A

• B

• C

• D

Which cranial nerves send signals to the salivatory nucleus?

• CN 9, 10, and 11

• CN 5, 9, and 10

• CN 3, 5, 9, and 10

• CN 2, 3, 5, 9, and 10

Identify the structure labeled A.

• cerebral peduncle

• superior cerebellar peduncle

• inferior cerebellar peduncle

• middle cerebellar peduncle

Which statement best characterizes the reticular formation?

• the reticular formation is primarily responsible for coordinating ocular movement

• the reticular formation is primarily responsible for subconscious motor control of posture and balance

• the reticular formation is responsible for coordinating signals for voluntary motor function, autonomic function, and consciousness.

• the reticular formation is primary responsible for coordinating facial expressions

What are the motor signs of a brainstem lesion?

• dysphagia, dysarthria, dysmetria, and dysdiadochokinesia

• dysphagia, dysarthria, diplopia, and dysmetria

• dysphagia, dysarthria, and dysdiadochokinesia

• dysphagia, dysarthria, dyssynergia

Which cranial nerves are associated with reflexes? Choose the BEST answer. 

• CN 9, 10, and 11

• CN 5, 9, and 10

• CN 3, 5, 9, and 10

• CN 2, 3, 5, 9, and 10

A client of yours complains of difficulty swallowing. On testing, the gag reflex is diminished and swallowing is difficult. Taste is somewhat altered, but tongue movements are normal, as is cardiac and digestive function. Which cranial nerve is most likely affected?

• hypoglossal

• glossopharyngeal

• spinal accessory

• vagus