Nervous System VII

Question 1

Cerebral Cortex

Answer 1

Relatively thin, outer portion, gray matter is located here, 2-4 mm thick

Contains 6 indistinct layers of the nerve cell bodies

Question 2

Gyri

Answer 2

Hills

Question 3

Sulci

Answer 3

Valleys

Question 4

Gyri and Sulci make up what?

Answer 4

Convulutions

Question 5

Fissure

Answer 5

Deep groove in between left and right halves of the cerebrum

Question 6

White Matter

Answer 6

axons within the cerebrum connecting the cerebrum with different parts of the brain

Question 7

Association Fibers

Answer 7

connect or transmit information, axons that are connecting two different areas

Connect a Gyri in one hemisphere with another gyri

Question 8

Commissural Fibers

Answer 8

Transmit from one gyri’s to the corresponding gyri’s in the opposite hemisphere

Question 9

Projection Fibers

Answer 9

ascending or descending fibers going from the cerebrum to other parts of the brain and or spinal cord

will project up or down from or to the brain and Spinal Cord

Question 10

Four Lobes

Answer 10

Frontal Lobe

Parietal Lobe

Occipital Lobe

Temporal Lone

Question 11

Frontal Lobe

Answer 11

most anterior of all the lobes. The frontal lobe is separated from the parietal lobe by the central sulcus

Question 12

Parietal Lobe

Answer 12

Posterior to the frontal lobe

Question 13

Occipital Lobe

Answer 13

most posterior lobe, separated from the parietal lobe by the parieto occipital sulcus.

Question 14

Temporal Lobe

Answer 14

most inferior and lateral, sets where temporal bone is, separated from the frontal lobe by the lateral cerebral sulcus

Question 15

3 Main Divisions of Cerebral Cortex

Answer 15

Motor Areas

Sensory Area

Association Area

Question 16

Motor Areas

Answer 16

Primary Motor Area

Pre Motor Area

Front Eye Field Area

Language Area and Speech Centers

Question 17

Sensory Areas

Answer 17

Primary Sensory Cortex

Sensory Association Area

Primary Visual Cortex

Visual Association Area

Primary Auditory Area

Auditory Association Area

Primary Gustatory Area

Primary Olfactory Area

General Interpretive Area

Question 18

Association Area

Answer 18

Connects all the motor sensory area to each other and lies throughout the cerebrum, concerned with memory, emotion, reasoning, your will and judgement

Question 19

Basal Nuclei (Cerebral Nuclei)

Answer 19

Basil Ganglia, are the same thing. Lie within each other, hemisphere beneath the floor of the lateral ventricle

Question 20

Basal Nuclei Divisions

Answer 20

Caudate Nucleus

Lentiform Nucleus

Claustrom

Amygdaloid Body

Question 21

Function of Basal Nuclei

Answer 21

Involuntary Adjustment and Modification of voluntary motor commands, very easily adjust motor pattern and continue walking

Helps process information

Question 22

Amygdaloid Body

Answer 22

Part of the Limbic System

Question 23

Claustrom

Answer 23

Is a thin, irregular, sheet of neurons which is attached to the underside of the neocortex in the center of the brain.

Question 24

Lentiform Nucleus

Answer 24

large cone shape mass of gray matter just lateral to the internal capsule

has two components:

   Globus Pallidus
   Putamen

Question 25

Caudate Nucleus

Answer 25

Sweeps around lateral ventricle, one of the three basic structures that make up the basal ganglia

Question 26

General Interpretive Area

Answer 26

Gnostic area, integrates sensory information so common thought can be formed, usually found on left side

Question 27

Primary Olfactory Area

Answer 27

Interprets smell

Question 28

Primary Gustatory Area

Answer 28

Interprets taste

Question 29

Auditory Association Area

Answer 29

Worneky’s, interprets sound, speech, music, noise, allows us to begin the translation of thoughts into words.

Use language in our thinking process.

Send to Broca’s area and reply back to a question

Question 30

Primary Auditory Area

Answer 30

Interprets characteristics of sound, pitch, and rhythm.

Found in the auditory complex in the temporal lobe

Question 31

Visual Association Area

Answer 31

Start to interpret what we’ve projected, evaluated, and recognizes past and present visual experiences

Question 32

Primary Visual Cortex

Answer 32

Back of Occipital Lobe, projects shapes and colors on occipital lobe

Question 33

Sensory Association Area

Answer 33

Allows us to analyze and interpret this information which is sent to the gnostic area (to know)

Question 34

Primary Sensory Cortex

Answer 34

Located in the post central gyrus, behind the central sulcus,

Pain, Temperature, Touch, Pressure are general senses

Proprioception. Special senses like sight, hearing, taste, smell.

Question 35

Sensory Homonculus

Answer 35

Parts of the body that receives the information or details better

Question 36

Language Area and Speech Centers

Answer 36

Broca’s Area - Speech Ends

Commonly affected in stroke patients

Motor Speech Area

Translates thoughts into speech

Regulates vocal patterns for speech

Question 37

Frontal Eye Field Area

Answer 37

Location is anterior to pre-motor area

Allows us to scan the visual field for visual cues to see familiar things

Coordinates with other parts of the brain to pick up interesting structures before exchanging

Question 38

Pre-Motor Area

Answer 38

Concerned with Complex learned motor activity

Pre-Motor Association Area

Controls specific muscles when we initiate fine tune motor skills

Concerned with complex motor activity

Typing, writing, playing instruments

Question 39

Homonculus

Answer 39

Little man

Simply another topographical map that corresponds to different parts of the body

Question 40

Primary Motor Area

Answer 40

Located anterior to central sulcus

Controls specific muscles when you put a electrical probe, it will cause a skeletal motor contraction, we’d get a little twitch