Blood Supply to Brain

Question 1

What supplies the rostral 2/3 of the pons?

Answer 1

Basilar artery

Question 2

What supplies the caudal 1/3 of the pons?

Answer 2

Anterior inferior cerebellar artery (AICA)

Question 3

What supplies rostroventral part of the cerebellum?

Answer 3

Anterior inferior cerebellar artery (AICA)

Question 4

What supplies posterior part of the cerebellum?

Answer 4

Posterior inferior cerebellar artery (PICA)

Question 5

What supplies the medulla?

Answer 5

Vertebral and posterior inferior cerebellar artery (PICA)

Question 6

What are the axon bundles, glands and blood vessels that are around the cavernous sinus?

Answer 6

III, IV, VI, opthalmic V, maxillary V, pituitary gland, internal carotid

Question 7

Sympathetic pathway to head

Answer 7

1) pregang neuron in thoracic to superior cervical ganglion
2) Superior cervical gang to carotid plexus on internal carotid
3) Carotid plexus to cavernous sinus
4) Cavernous sinus to ciliary ganglion, NO SYNAPSE
5) Terminate in smooth muscles near/in eye

Question 8

NTs used by sympathetic neurons?

Answer 8

Pregang to gang: Ach onto nicotinic receptors

Gang to target: NE on alpha 1 receptors

Question 9

NTs used by parasympathetic neurons?

Answer 9

Pregang to gang: Ach onto nicotinic receptors

Gang to target: Ach onto muscarinic receptors