Acending and descending pathways, cerebellum

Question 1

The sensation of pain, temperature, crude touch, and/or pressure to the viscera is known as what?

Answer 1

Interoception

Question 2

Conscious and unconscious position sense from joints, tendons and ligaments is known as what?

Answer 2

Proprioception

Question 3

Where do fibres of the posterior column (medial lemniscal) pathway decussate

Answer 3

Lower medulla

Question 4

2nd order neurons of the trigeminothalamic tract that carry sensory information related to fine touch and vibration originate in which brainstem nucleus

Answer 4

Chief nucleus

Question 5

An MRI shows a right hemisection of the spinal cord at C6. What is the expected result of injury?

Answer 5

Absent sensation to pain and temperature in the left hand

Question 6

Approximately what percentage of upper motor neurons decussate at the pyramids in the corticospinal tract?

Answer 6

80

Question 7

Which of the following is not an extrapyramidal tract?

Rubrospinal

Reticulospinal

Lateral corticospinal

Olivospinal

Vestibulospinal

Answer 7

Lateral corticospinal

Question 8

A positive Babinski sign is usually a feature of what?

Answer 8

An upper motor neuron lesion

Question 9

Akinesia refers to what?

Answer 9

Inability to initiate movement

Question 10

Which of the following statements concerning the cerebrocerebellum is incorrect?

The cerebrocerebellum influences corticospinal and corticobulbar tracts to regulate complex movements​

The cerebrocerebellum is the largest division of the cerebellum

The cerebrocerebellum plays a role in visually guided movements

The cerebrocerebellum receives inputs from the vestibular system

The cerebrocerellum receives inputs from the cerebral cortex and pontine nuclei

Answer 10

Receives input from vestibular system