Brain Regions

Question 1

The largest portion of the brain.

Answer 1

Cerebrum

Question 2

Halves of the adult brain.

Answer 2

Cerebral Hemispheres

Question 3

Thick superficial layer of gray matter

Answer 3

Cerebral Cortex

Question 4

Deep grooves that subdivide the cerebral hemisphere.

Answer 4

Fissures

Question 5

Folds in the cerebral hemisphere that increase the surface area

Answer 5

Gyri

Question 6

Shallow depressions in the cerebral hemisphere that separate adjacent gyri.

Answer 6

Sulci

Question 7

Functions include coordinating and modulating motor commands from the cerebral cortex.

Answer 7

Cerebellum

Question 8

The structural and functional link between the cerebral hemispheres and the rest of the CNS.

Answer 8

Diencephalon

Question 9

Contains relay and processing centers for sensory information

Answer 9

Thalamus

Question 10

Contains centers involved with emotions, autonomic function, and hormone production.

Answer 10

Hypothalamus

Question 11

Includes the midbrain, pons, and medulla oblongata.

Answer 11

Brain Stem

Question 12

Contains nuclei that process visual and auditory information and controls reflexes triggered by these stimuli. Contains centers that help maintain consciousness.

Answer 12

Midbrain

Question 13

Connects the cerebellum to the brain stem. Contains tracts, relay centers, and nuclei that function in somatic and visceral motor control

Answer 13

Pons

Question 14

Relays sensory information to other portions of the brain stem and thalamus. Contains major centers that regulate autonomic function.

Answer 14

Medulla Oblongata

Question 15

Formed due to expansion of the neurocoel. Filled with cerebrospinal fluid and lined with ependymal cells.

Answer 15

Ventricles

Question 16

Found in each cerebral hemisphere.

Answer 16

Lateral Ventricle

Question 17

Allows for communication between lateral ventricles.

Answer 17

Interventricular Foramen

Question 18

Located in the diencephalon.

Answer 18

Third Ventricle

Question 19

Slender canal within the midbrain. Connects the third ventricle to the fourth ventricle.

Answer 19

Cerebral Aqueduct

Question 20

Begins in the metencephalon and extends into the superior portion of the medulla oblongata. Becomes the central canal of the spinal cord.

Answer 20

Fourth Ventricle

Question 21

Takes the CSF out of the fourth ventricle and continues through the spinal cord.

Answer 21

Central Canal

Question 22

A thick tract of white matter that interconnects the two cerebral hemispheres.

Answer 22

Corpus Callosum

Question 23

A thin partition that separates the two lateral ventricles.

Answer 23

Septum Pellucidum

Question 24

Name the six major regions of the brain the the distinct structures of each.

Answer 24

The cerebrum, diencephalon, cerebellum, midbrain, pons, and medulla oblongata. The midbrain, pons, and medulla oblongata make up the brain stem. The thalamus and hypothalamus make up the diencephalon.

Question 25

Describe the role of the medulla oblongata.

Answer 25

It relays sensory information to other parts of the brain stem and to the thalamus. It also contains centers that regulate autonomic function, such as heart rate and blood pressure.

Question 26

Compare the corpus callosum with the septum pellucidum.

Answer 26

The corpus callosum is a tract of white matter that links the left and right cerebral hemispheres, whereas the septum pellucidum is a partition that separates the two lateral ventricles.