Ch. 13 Brain

Question 1

Largest part of the brain, consisting of two hemispheres

Answer 1

Cerebrum

Question 2

Convolutions of the cerebrum separated by sulci

Answer 2

gyri

Question 3

separates the gyri

Answer 3

sulci

Question 4

Fissure that separates the right and left hemispheres and is occupied by the falx cerebri

Answer 4

longitudinal fissure

Question 5

sulcus separating the temporal lobe from the rest of the cerebrums superior to it.

Answer 5

lateral sulcus

Question 6

sulcus separating the precentral and post central gyri

Answer 6

central sulcus

Question 7

Four main lobes of the cerebrum

Answer 7

Frontal
Parietal
Occipital
Temporal

Question 8

Fifth lobe lying within the depths of the lateral sulcus

Answer 8

insula

Question 9

Structure lying anteriorly to the central sulcus

Answer 9

Primary motor cortex or precentral gyrus

Question 10

Structure lying posterior to the central sulcus

Answer 10

Primary sensory cortex or post central gyrus

Question 11

Structure that constitutes the central gray matter of the cerebrum

Answer 11

Basal nuclei

Question 12

Controls movement and posture

Answer 12

basal nuclei

Question 13

diseases involving the basal nuclei

Answer 13

Disturbances in voluntary muscle control, Parkinsons, Hutchinsons

Question 14

Most important sensory relay center of the brain

Answer 14

thalamus

Question 15

Sends incoming impulses from the receptors of the body to the cerebral cortex

Answer 15

thalamus

Question 16

Structure lying between and associated with the optic chiasma, the mammillary bodies and the pons

Answer 16

Hypothalamus

Question 17

Functions of the hypothalamus

Answer 17

Body temperature
Carb and lipid metabolism
Sleep, sexual activity, emotions

Question 18

Where the R and L optic nerves (CNII) cross

Answer 18

Optic chiasma

Question 19

Sensory synaptic station, part of the limbic system

Answer 19

Mammillary bodies

Question 20

Projects inferior from the hypothalamus and secretes many hormones

Answer 20

pituitary glands

Question 21

Composed of three parts from superior to inferior midbrain, pons, medulla oblongata

Answer 21

Brainstem

Question 22

Roof (dorsal surface) of the midbrain contains the ________ anteriorly and the ____ with the _____ posteriorly

Answer 22

cerebral peduncles; tectum with corpora quadrigemina

Question 23

Four elevations that are arranged as two pairs in the corpora quadrigemina

Answer 23

Superior colliculi

inferior colliculi

Question 24

Involved with the pathway of the vision

Answer 24

Superior colliculi

Question 25

Involved with the pathway of hearing

Answer 25

Inferior colliculi

Question 26

Acts as a bridge connecting the right and left cerebellar hemispheres

Answer 26

pons

Question 27

relays impulses from the cerebral cortex to the cerebellum

Answer 27

pons

Question 28

The pons relays impulses from the ____ to the ____

Answer 28

cerebral cortex; cerebellum

Question 29

part of the brain that is directly continuous with the spinal cord. Contains many of the ascending and descending tracts of the spinal cord

Answer 29

medulla oblongata

Question 30

Represents an area in which pyramidal tract fibers lie, called the pyramids

Answer 30

medulla oblongata

Question 31

Pyramidal tracts in the medulla oblantaga

Answer 31

pyramids

Question 32

Area where the pyramidal tracts cross or over the contralateral side.

Answer 32

Pyramidal decussation

Question 33

Contains several nuclei involved in the regulation of vital body actives: respiratory, cardiac and vasomotor

Answer 33

medulla oblongata

Question 34

little brain

Answer 34

cerebellum

Question 35

connects with the midbrain, pons and medulla oblongata via the superior, middle in the inferior cerebellar peduncles, respectively.

Answer 35

cerebellum

Question 36

hemispheres of the cerebellum are separated by the ___

Answer 36

median vermis

Question 37

outer cortex of the cerebellum contains the ___ separated by fissures.

Answer 37

folia

Question 38

White matter in the cerebellum branching in the form of a tree

Answer 38

arbor vitae

Question 39

Functions of the cerebellum

Answer 39

coordination of muscular activity
regulation of muscle tone
maintenance of equilibrium