Lab 2 internal brain features and CSF circulation

Question 1

What structures does the anterior limb of the internal capsule separate?

Answer 1

caudate from the lenticular nucleus

Question 2

what structures does the posterior limb of the internal capsule separate?

Answer 2

thalamus from the lenticular nucleus

Question 3

what structure does the thalamus bulge into?

Answer 3

third ventricle

Question 4

what structure does the caudate bulge into?

Answer 4

lateral wall of the lateral ventricle

Question 5

where is CSF produced?

Answer 5

choroid plexus found in all 4 ventricles

Question 6

how does CSF travel from the lateral ventricles to the 3rd ventricles?

Answer 6

foramen of monroe

Question 7

how does CSF travel from the third ventricle to the 4th ventricle

Answer 7

cerebral aqueduct

Question 8

how does CSF exit the 4th ventricle?

Answer 8

exits into subarachnoid via foramen Luschka and the foramen of Megendie

Question 9

how does CSF exit the subarachnoid space?

Answer 9

drains into the superior sagittal sinus by way of arachnoid granulations.

Question 10

what are the 4 major cisterns?

Answer 10

cisterna magna
superior cistern
pontine cistern
interpeduncular cistern

Question 11

what are the characteristics of the cervical spinal cord?

Answer 11

large amount of white matter

Question 12

what are the characteristics of the thoracic spinal cord?

Answer 12

presence of the lateral horn

Question 13

what are the characteristics of the lumbar spinal cord?

Answer 13

large amount of gray matter