Lab (Areas of the Brain)

Question 1

Dura

Answer 1

Outermost layer of the meninges; intracanial dura mater is attached to the crainum; spinal dura mater forms a sac

Question 2

Arachnoid

Answer 2

Thin meningial layer that lines and is attached to dura mater; interconnected with with pia mater by arachnoid trabeculea

Question 3

Pia

Answer 3

Innermost/thinnest layer of meninges; attached to surface of CNS and arachnoid trabeculea

Question 4

Falx Cerebri

Answer 4

sickle shaped dural septum between the two cerebral hemispheres

Question 5

Falx Cerebelli

Answer 5

the smaller of the two folds of dura mater separating the hemispheres of the brain that lies between the lateral lobes of the cerebellum

Question 6

Tentorium Cerebelli

Answer 6

Dural septum between cerebellum and the inferior sufaces of the occipital lobe and temporal lobes

Question 7

Diaphragma sellae

Answer 7

Small dural septum that covers the pituitary fossa

Question 8

Superior Sagittal Sinus

Answer 8

A prominent venous sinus in the attached edge of the flax cerebri

Venous blood traveling posteriorly in this sinus meets up with blood from the straight sinus at the confluence of the sinuses

Question 9

Longitudinal Fissure

Answer 9

Extensive vertical cleft, oriented sagittally and occupied by the falx cerebri, separating the two hemispheres around the margin of the undivided corpus collosum

Question 10

Central sulcus

Answer 10

Boundary between frontal and pariental lobes

Begins just medial to the superior border of the hemisphere, proceeding over its superior margin, descending obliquely forward almost to the lateral sulcus

Question 11

Lateral sulcus

Answer 11

also called the Sylvian Fissure

Long, deep sulcus on the lateral aspect of each cerebral hemisphere resulting from downward and foward expansion of the temporal lobe during fetal development