The Hindbrain and Spinal Cord Flashcards

1
Q

what 3 structures make up the Hindbrain?

A

the Pons,
the Medulla,
and the Cerebellum.

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2
Q

the sensory afferent division leads to…

A

the Spinal Cord (reflexes),
the Brain Stem (reflexes),
and the Cerebellum and Cerebrum (voluntary).

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3
Q

the afferent fibres enter the Spinal Cord at…

A

the dorsal root and the dorsal horn.

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4
Q

cell bodies of motor neurons are found where?

A

the ventral aspect of the Spinal Cord, coming out from the ventral root.

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5
Q

what is the lateral (descending) pathway?

A

motor neuron activates and sends signal along the axon, through the internal capsule thalamus, midbrain, medullary pyramids, white matter of Spinal Cord to get to the ventral horn.

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6
Q

what are the 2 ventromedial (descending) pathways?

A

pathway from soma in the Medulla to presynaptic terminals in the ventral horn.

pathway from soma in the Pons to presynaptic terminals in the ventral horn.

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7
Q

the Cerebellum contains neurons that receive…

A

sensory input.

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8
Q

what do the functions of the Cerebellum include?

A

co-ordination of movement,
balance,
posture.

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9
Q

the Cerebellum has a connection to the Cerebral Cortex via what?

A

a tract that comes down from the Neocortex to Cerebellum via the Pons.

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10
Q

the Cerebellar cortex has 4 layers:

A

the molecular layer,
the purkinje cell layer,
the granule cell layer,
and the white matter of folium.

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11
Q

the sensory division can also lead to…

A

Brainstem nuclei.

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12
Q

the Spinal cord consists of 2 sections…

A

Thoracic and Sacral.

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13
Q

what is the rostral ventrolateral medulla?

A

the nucleus important for output to sympathetic neurons of the spinal cord.

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