Lecture 62

Question 1

Telencephalon

Answer 1

cerebrum and lateral ventricles

Question 2

Diencephalon

Answer 2

thalamus hypothalamus third ventricle

Question 3

Mesencephalon

Answer 3

midbrain, cerebral aqueduct

Question 4

Metencephalon

Answer 4

pons and cerebellum, fourth ventricle

Question 5

Myelencephalon

Answer 5

medulla oblingata, fourth ventricle

Question 6

What hemispheres make up 80% of the total mass of the brain?

Answer 6

cerebral or cortices

Question 7

The cerebral cortices cover

Answer 7

the diencephalon, midbrain and part of the brainstem

Question 8

Deep grooves are called

Answer 8

fissures

Question 9

The longitudinal fissure separates the

Answer 9

right and left hemispheres

Question 10

The grooves on the surface are called

Answer 10

sulci

Question 11

Suclis separate

Answer 11

ridges of gray tissue (gyri)

Question 12

Some deeper sulci divide each CC into

Answer 12

5 lobes: frontal, parietal, occipital and temporal plus insula

Question 13

The frontal and parietal lobes are separated by the

Answer 13

transverse central sulcus

Question 14

What are the two types of gyri

Answer 14

precentral and postcentral

Question 15

The insula is hidden by

Answer 15

parts of the temporal parietal and frontal lobes

Question 16

PET and fMRIs are imaging methods that show

Answer 16

changes in blood flow - these methods are non-invasive

Question 17

The primary motor cortex is compost of

Answer 17

pyramidal neurons

Question 18

Pyramidal neurons control

Answer 18

associative areas of the frontal lobes

Question 19

the human body is represented spatially in the

Answer 19

primary motor cortex of each hemisphere and corresponding somatic sensory cortex

Question 20

the homunculi are the cortexes posterior to

Answer 20

the central sulcus

Question 21

the areas with the biggest representations of the body in homunculi are those dealing with

Answer 21

very find, skilled movements, such as the face and hands

Question 22

sensory afferent information is first processed by

Answer 22

the thalamus: olfaction via cranial nerve 1

Question 23

If the primary visual cortex is damaged, the person is considered

Answer 23

functionally blind

Question 24

the left hemisphere has greater influence on

Answer 24

language, logic, maths

Question 25

the right hemisphere has more influence on

Answer 25

visual-spatial skills, communication, intuition and emotional skills

Question 26

cerebral white matter is composed mostly of

Answer 26

myelinated axons

Question 27

commissures are composed of that interconnect

Answer 27

the regions of the right and left hemispheres so that they can act as a coordinated whole

Question 28

association fibers connect

Answer 28

different parts within the same cortex

Question 29

projection fibers are considered the

Answer 29

inputs and outputs of the CCs

Question 30

the basal ganglia are primarily composed of

Answer 30

the caudare and lentiform nuclei - act as complex neural calculators

Question 31

Parkinson’s disease can be caused by the loss of

Answer 31

dopaminergic projection from the substantia nigra

Question 32

In alzheimer’s disease, these neurons are destroyed

Answer 32

cholinergic

Question 33

damage to the basal ganglia produces

Answer 33

dyskinesia

Question 34

The limbic system is composed of

Answer 34

hippocampus, dentate gyrus, parts of the amygdala, hypothalamus and thalamus

Question 35

The body’s thermostat is contained in the

Answer 35

hypothalamus

Question 36

the cerebral aqueduct joins which ventricles?

Answer 36

third and fourth

Question 37

which motorneuron cell bodies control eye movement?

Answer 37

oculomotor and trochlear

Question 38

the reticular formation is a diffuse network of fibers concerned with

Answer 38

cortical arousal