Sulcus and Fissures

Question 1

Runs downward and forward across lateral aspect of
the hemisphere and its lower end is separated from
posterior ramus of lateral sulcus

Answer 1

Central Sulcus (of Rolando)

Question 2

Sulcus vs fissure vs gyrus

Answer 2

Sulcus - shallow
fissure - deep depression
gyrus - elevation

Question 3

Separates parietal (sensory cortex) and frontal lobe
(motor cortex)

Answer 3

Central Sulcus (of Rolando)

Question 4

Deep cleft found on the inferior and lateral surfaces of
the cerebral hemisphere. It consists of a short stem
that divides into 3 rami

Answer 4

Lateral (Sylvian) Sulcus

Question 5

Divides frontal and parietal to temporal lobe

Answer 5

Lateral (Sylvian) Sulcus

Question 6

Begins on the superior medial margin of the
hemisphere about 2 in. anterior to the occipital pole. It
passes downward and anteriorly on the medial
surface to meet the calcarine sulcus

Answer 6

Parieto-occipital Sulcus

Question 7

Divides parietal and occipital lobe

Answer 7

Parieto-occipital Sulcus

Question 8

Found on the medial surface of the hemisphere. It
starts under the posterior end of the corpus callosum
and arches upward and backward to reach the
occipital pole. It is joined at an acute angle by
parieto-occipital sulcus about half-way along its
length.

Answer 8

Calcarine Sulcus

Question 9

Divides two occipital lobes

Answer 9

Calcarine Sulcus

Question 10

Divides the brain into symmetrical left and right cerebral hemispheres or two parietal lobes

Answer 10

Longitudinal Fissure

Question 11

longitudinal fissure contains the

Answer 11

falx cerebri, the anterior cerebral arteries, and the
corpus callosum.