IOTA 13

Question 1

Tho dorsal surface of the pons or floor on the 4th ventricle contains?

Answer 1

CSF : CEREBROSPINAL FLUID

Question 2

What is the tectum?

Answer 2

Roof over the cerebral acquedoct (small channel filled with CSF)

Quadrigemini: 4 colliculi (bumps)

Found in dorsal surface of brain stem

Question 3

What is the only cranial nerve that exists dorsal,y ?

Answer 3

Cranial nerve 4

Question 4

What is the facial colliculi?

Answer 4

Found in the pons

Left and right bumps

Seen on the floor of the 4th ventricle

Question 5

What is the sulcus limitans?

Answer 5

Separates motor and sensory cranial nerves nuclei (cell bodies) in the pons

Question 6

The bottom part of the floor of the 4th ventricle is called?

Answer 6

Open medulla or rostral medulla

Cause it’s part of the medulla

The upper and major part of the floor of the 4th ventricle is part of the pons

Question 7

What is the hypoglossal trigone ?

Answer 7

Is where the cell bodies for cranial nerve 12 - hypoglossal are found

Question 8

What is the vagar trigone?

Answer 8

Is where cell body nuclei of cranial nerve 10- vagus nerve, are found

Question 9

The dorsal spinal cord will have the posterior median sulcus

True or false?

Answer 9

True

Question 10

Fasciculus means?

Answer 10

Tract