Brainstem Flashcards
What part of the brain do the mamillary bodies form a part of?
Hypothalamus
Where are the mamillary bodies seen
midbrain
What do the Mamillary Bodies lead to
Infundibulum
What is the location of the Oculomotor Nucleus
Ventral Side of Midbrain
What is the location of the Trochlear Nucleus
Curves ventrally from its dorsal origin on the Midbrain
Where is the “pyramid” found
On the medulla
What forms the pyramid of the medulla
Corticospinal tranct (motor)
Where is the Pineal Body
Seen on dorsal side of midbrain but is actually part of the epithalamus
What are the Superior and Inferior Collilculi also called? Where are they?
Also called Corpora Quadrigemina
Seen on the Dorsal side of the Midbrain
What is the function of the Cerebellar Peduncles
Superior: Connects cerebellum with midbrain
Middle: connects pons with cerebellum
Inferior: connects medulla with cerebellum
What is the location of the facial colliculus
Near mid line in fourth ventricle floor
Where fibres of VII arch over VI
What are the the Trigone?
Swellings in the Medulla associated with CN nuclei
Hypoglossal Trigone
Vagal Trigone
Explain the structure and function of the dorsal column
Conveys sensory information.
In pons
Cuneate Tubercle:
-Associated with Cuneate Fasciculus beneath
Gracile Tubercle:
-Associated with Gracile Fasciculus
What are the structures on the floor of the fourth ventricle
Facial Colliculus
Vestibular Area
Hypoglossal Trigone
Vagal Trigone
Describe CN III nucleus
Only motor at Oculomotor Nucleus
Secretomotor at Edinger-Westphal Nucleus
Associated with the red nucleus
Located in the brainstem
See pl 118
