Mid-pons.

Question 1

Name this and state its function.

Answer 1

Transverse pontine fibres.

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

Question 2

Name this and state its pathway.

Answer 2

Fourth ventricle.

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

Question 3

Name this and state its function.

Answer 3

Cerebellum.

Question 4

Name this and state its function.

Pathways? types?

the function of the first pathway?

Answer 4

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.
  *

Question 5

Name this and state its function.

What does it connect?

Answer 5

Middle cerebellar peduncle.

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

Question 6

Name this and state its function.

State all components it controls.

Answer 6

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).

Question 7

Name this and state its function.

Answer 7

Trigeminal nerve(root).

• Sensory and motor innervations of the face.

Question 8

Name this and state its function.

Pathway.?

Answer 8

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.

Question 9

Name this and state its function.

Answer 9

Medial lemniscus.

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