Cerebrum

Question 1

Contents

Answer 1

1. 2 cerebral hemispheres: separated by median longitudinal fissures which contains falx cerebri
2. Diencephalon

Question 2

Cerebral hemisphere position

Answer 2

1. Cerebral hemispheres occupy anterior, middle, and upper part of posterior cranial fossae
2. The 2 hemispheres are separated from cerebellum by a horizontal Dural fold (Tentorium cerebelli)

Question 3

Cerebral hemisphere surfaces

Answer 3

1. Lateral (superolateral) surface
2. Medial surface
3. Inferior surface

Question 4

Lateral surface

Answer 4

1. Convex
2. Related to skull vault

Question 5

Medial surface

Answer 5

1. Flattened
2. Related to its fellow of opposite hemisphere with falx cerebri in between

Question 6

Inferior surface

Answer 6

1. Irregular
2. Divided by lateral sulcus into orbital part which lies on orbit roof and tentorial part which lies on Tentorium cerebelli

Question 7

Cerebral hemisphere borders

Answer 7

1. Superior (superomedial) border
2. Superciliary broder
3. Inferior (inferolateral) border

Question 8

Superior border

Answer 8

Separates lateral from medial surfaces

Question 9

Superciliary border

Answer 9

Separates lateral from orbital part of inferior surfaces

Question 10

Inferior border

Answer 10

1. Separates lateral from tentorial part of inferior surfaces
2. Presents slight depression 2 inches in front of occipital pole (preoccipital notch)

Question 11

Division into lobes

Answer 11

Each hemisphere is divided into 4 lobes by 3 major sulci