Ch. 5 Cerebral Cortex

Question 1

Association fibers

Answer 1

interconnects parts of same hemisphere

Question 2

Commissural fibers

Answer 2

run between hemispheres

Question 3

Projection fibers

Answer 3

Connect cortex with other areas of CNS

Question 4

Corpus collosum

Answer 4

Connects two cerebral hemispheres

Question 5

Internal capsule

Answer 5

-contains axons that connect cortex with thalamus/spinal cord
-Lesions here can impact entire cerbeal hemisphere

Question 6

Broadman’s Map

Answer 6

cortex divided into regions (47 functional regions)

Question 7

Frontal lobe function

Answer 7

thinking, problem solving, voluntary movement

Question 8

5 areas of frontal lobe

Answer 8

Motor cortex, premotor cortex, supplementary motor area, broca’s area, prefrontal cortex

Question 9

Motor cortex

Answer 9

Controls voluntary movement on opposite side of body

Question 10

Premotor cortex

Answer 10

trunk function, proximal musculature, body part ownership

Question 11

Supplementary motor cortex

Answer 11

motor planning, stores motor programs, directs activity of motor cortex

Question 12

Broca’s area

Answer 12

Speech. Controls muscles of face, lip, tongue, larynx

Question 13

Apraxia

Answer 13

Motor planning deficit

Question 14

Expressive aphasisa

Answer 14

inability to produce speech, can still understand language, usually stroke patients

Question 15

Prefrontal cortex 3 divisions

Answer 15

orbitofrontal cortex, dorsolateral frontal cortex, ventromedial frontal cortex

Question 16

Orbitofrontal cortex

Answer 16

Impulse control, inhibition of inappropriate behavior, carrying out plans.

Question 17

Dorsolateral frontal cortex

Answer 17

Analytical thinking, problem solving, planning, attention, focus, general intelligence

Question 18

Ventromedial frontal cortex

Answer 18

Limbic system, connects emotion/thoughts, emotional meaning to life, experiences

Question 19

Prefrontal syndrome

Answer 19

damage of higher functioning processes of the brain such as motivation, planning, social behavior, and language/speech production

Question 20

Homunculus map- do areas that have more sensory reception have larger or smaller representation

Answer 20

Larger. The more receptors needed for sensation the larger representation on homunculus map. Hands, lips, tongue are the largest on the map.

Question 21

Somatosensory cortex

Answer 21

sensory perception/ processing area

Question 22

Somatosensory association area

Answer 22

interperts somatosensory info.
EX: Being able to recognize an object by touch
Disorders: Anoxeria, unilateral neglect, asterognosis

Question 23

Sterognosis

Answer 23

ability to recognize by touch
Ex: penny in pocket

Question 24

Patietemporal association cortex

Answer 24

abstract thought, reading, writing, mathematics, spatial perception

Question 25

Parietal lobe cortexs

Answer 25

somatosensory cortex, somatosensory assocation area, parietemporal assocation area

Question 26

Visual cortex

Answer 26

interprets meaning to visual info

Question 27

hemianopsia

Answer 27

damage to one side of visual cortex

Question 28

cortical blindness

Answer 28

damage to both sides of visual cortex

Question 29

visual agnosia

Answer 29

person can see but can not recognize objects

Question 30

Temporal lobe cortexs

Answer 30

auditory cortex, inferotemproal cortex

Question 31

Auditory cortex

Answer 31

sound produced in this area

Question 32

Wernick's area

Answer 32

interprets language- written, verbal, sign language

Question 33

Receptive aphasia

Answer 33

Can't understand any language. Happens in left sided CVA's

Question 34

Inferotemproal cortex

Answer 34

recognation of faces, objects, colors. Damage here can cause propagnosia

Question 35

Propagnosia

Answer 35

inability to recognize people you know. Can occur with Alzheimer's disease.

Question 36

What is the function of a cortex?

Answer 36

Interpert a sensation

Question 37

Olfactory cortex

Answer 37

smell

Question 38

Amygdala

Answer 38

involved with emotion- fear/anger

Question 39

Hippocampus

Answer 39

learning, long term memory

Question 40

Exercise causes hippocampus to...

Answer 40

grow

Question 41

Stress causes hippocampus to

Answer 41

shrink

Question 42

Anterograde amnesia

Answer 42

inability to form any new long term memories

Question 43

Retrograde amnesia

Answer 43

inability to remember any previous long term memories

Question 44

What does the cerebrum do

Answer 44

Largest part of brain. Areas within the cerebrum control muscle functions and also control speech, thought, emotions, reading, writing, and learning