Mid-pons. Flashcards

1
Q

Name this and state its function.

A

Transverse pontine fibres.

  • Connect the cerebrum to the cerebellum, function of coordination of movement.
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2
Q

Name this and state its pathway.

A

Fourth ventricle.

Third ventricle–>4th ventricle–> subarachnoid space.

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3
Q

Name this and state its function.

A

Cerebellum.

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4
Q

Name this and state its function.

Pathways? types?

the function of the first pathway?

A

Superior cerebellar peduncle.

Efferent pathway:

  • Sending signals from Deep cerebellar nuclei(2 pathways).

first —>= superior cerebellar peduncle

  • Deep cerebellar nuclei—->superior colliculus.
    • ​Function: orientation of the head
  • Deep cerebellar nuclei—> thalamus—> primary motor cortex & premotor cortex.
    *
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5
Q

Name this and state its function.

What does it connect?

A

Middle cerebellar peduncle.

  • Afferent pathway, cell bodies that give rise to the pontine nucleus. Controlateral pons.
  • Connect the pons to the cerebellum.
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6
Q

Name this and state its function.

State all components it controls.

A

Medial longitudinal fasciculus.

  • Connects 3 CN responsible for the extraocular muscles of the eye.
    • Oculomotor(III),Trochlear(IV) and Abducens(VI)
  • Also the vestibulocochlear nerve(VIII).
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7
Q

Name this and state its function.

A

Trigeminal nerve(root).

  • Sensory and motor innervations of the face.
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8
Q

Name this and state its function.

Pathway.?

A

Pyramidal tracts.

  • Voluntary control of the musculature of the body and face.

Descending Pathway: Motor fibres, carrying information from Cortex—>brain and spine–> lower motor neurons.

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9
Q

Name this and state its function.

A

Medial lemniscus.

  • Second-order neurons of DCML pathway.
  • Transports sensory spinothalamic information:
    • proprioception, fine touch and vibration.
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