Anatomy - Lab 5

Question 1

Where is the primary motor cortex found?

Answer 1

Precentral gyrus

Question 2

Where is the primary somatosensory cortex found?

Answer 2

Postcentral gyrus

Question 3

What is found on the inferior frontal gyrus?

Answer 3

Broca’s area (left hemisphere) = speech

Question 4

What is the function of the angular gyrus?

Answer 4

Interpretation of language (especially written)

Question 5

What is the transverse temporal gyrus and where is it found?

Answer 5

Primary auditory cortex

Found within the lateral sulcus

Question 6

Where is the insula lobe found?

Answer 6

Found within the depths of lateral sulcus

Question 7

Occlusion of which artery would result in loss or aberrant speech and language function?

Answer 7

Middle cerebral artery (MCA)

Question 8

Where is the primary visual cortex found?

Answer 8

Lies on the gyri of either side of the calcarine sulcus

Question 9

What forms the paracentral lobule?

Answer 9

Found on the medial side

Formed by the precentral gyrus, central sulcus and postcentral gyrus

Question 10

The paracentral lobule has upper motor neurons for which parts of the body?

Answer 10

Lower extremity

Question 11

The paracentral lobule receives sensory info from which parts of the body?

Answer 11

Lower extremity and genitals

Question 12

Occlusion of which cerebral artery would result in loss of primary visual cortex activity?

Answer 12

Posterior cerebral artery

Question 13

Occlusion of which cerebral artery would result in loss of ability to wiggle toes?

Answer 13

Anterior cerebral artery

Question 14

Where is the primary olfactory cortex found?

Answer 14

Uncus

Question 15

Where is the anterior perforated substance found?

Answer 15

Area underlying origin of MCA

Perforated by many small blood vessels

Question 16

What does the anterior perforated substance supply?

Answer 16

Deep nuclei of the region and parts of internal capsule

Question 17

What forms the diencephalon?

Answer 17

Thalamus
Hypothalamus
Epithalamus
Subthalamus

Question 18

What joins the two halves of the thalamus?

Answer 18

Interthalamic adhesion

Question 19

Name the different parts of the corpus callosum.

Answer 19

Rostrum (anterior)
Genu
Body
Splenium

Question 20

What does the corpus callosum form?

Answer 20

Roof of the lateral ventricle

Question 21

What is the epithalamus made of?

Answer 21

Pineal gland

Habenula

Question 22

What does the septum pellucidum separate?

Answer 22

Anterior horns of the left and right lateral ventricles

Question 23

What does the fornix connect?

Answer 23

The hippocampus to mamillary bodies

Question 24

Anterior wall of third ventricle

Answer 24

Column of fornix
Anterior commissure
Interventricular foramen
Lamina terminalis

Question 25

Roof of third ventricle

Answer 25

Choroid plexus | Pineal gland and stalk

Question 26

Inferior wall of third ventricle

Answer 26

Mamillary body Optic chiasm and optic recess Infundibulum

Question 27

Lateral walls of third ventricle

Answer 27

Thalamus Hypothalamic sulcus Hypothalamus

Question 28

Where is the pineal gland found?

Answer 28

Below the splenium of the corpus callosum (posterior aspect)

Question 29

Lesion of the posterior part of the posterior limb would cause impaired motor control of what part of the body?

Answer 29

Lower extremity

Question 30

What gyrus lies parallel to the corpus callosum?

Answer 30

Cingulate gyrus

Question 31

What structure forms the medial wall of the anterior horn of the lateral ventricle?

Answer 31

Septum pallucidum

Question 32

What parts of the right and left lateral ventricles are closest together and what separates them?

Answer 32

Anterior horns - separated by septum pallucidum

Question 33

What subdivision does the pineal gland belong to?

Answer 33

Diencephalon

Question 34

What subdivision of the brain does the superior colliculus belong to?

Answer 34

Midbrain

Question 35

What subdivision does the pulvinar belong to?

Answer 35

Diencephalon

Question 36

What subdivision does the hippocampus belong to?

Answer 36

Cerebrum

Question 37

What structures bound the interventricular foramen?

Answer 37

Thalamus posteriorly | Column of fornix anteromedially