The Brain

Question 1

4 regions of brain

Answer 1

Cerebral hemispheres, diencephalon, brain stem, and cerebellum

Question 2

Ventricles of the Brain

Answer 2

Filled with CSF, lined by ependymal cells, connect to one another and to spinal cord central canal

Question 3

Gyri

Answer 3

Ridges

Question 4

Sulci

Answer 4

Shallow grooves

Question 5

Fissures

Answer 5

Deep grooves

Question 6

Longitudinal fissure

Answer 6

Separates two hemispheres

Question 7

Transverse cerebral fissure

Answer 7

Separates cerebrum and cerebellum

Question 8

5 lobes

Answer 8

Frontal, parietal, temporal, occipital, and insula

Question 9

Central Sulcus

Answer 9

Seperates precentral gyrus of frontal and postcentral gyrus of parietal

Question 10

Central Sulcus

Answer 10

Seperates precentral gyrus of frontal and postcentral gyrus of parietal

Question 11

Lateral Sulcus

Answer 11

Outlines temporal lobe

Question 12

Cerebral Cortex

Answer 12

Part of cerebral hemisphere, site of conscious mind, communication, memory. Concerned with contralateral side. Has primary motor cortex, premotor cortex, brocas area, frontal eye field.

Question 13

Primary Motor Cortex

Answer 13

Part of cerebral hemisphere. Allows conscious control of precise, skilled, skeletal muscles.

Question 14

Premotor Cortex

Answer 14

Part of cerebral hemisphere. Helps plan movements and control learned, repetitious, patterned skills.

Question 15

Brocas Area

Answer 15

Part of cerebral hemisphere. Directs muscles during speech and plans speech.

Question 16

Frontal Eye Field

Answer 16

Part of cerebral hemisphere. Controls voluntary eye movements

Question 17

Primary Somatosensory Cortex

Answer 17

Part of cerebral hemisphere. Receives general sensory information and spacial discrimination.

Question 18

Primary Visual Cortex

Answer 18

Part of cerebral hemisphere. Receives visual information from retinas.

Question 19

Visual Association Area

Answer 19

Part of cerebral hemisphere. Uses past experiences to interpret stimuli

Question 20

Primary Auditory Cortex

Answer 20

Part of cerebral hemisphere. Interprets information from inner ear.

Question 21

Auditory Association Area

Answer 21

Part of cerebral hemisphere. Stores memories of sound.

Question 22

Association Fiber

Answer 22

Connect different parts of same hemisphere

Question 23

Commissural Fiber

Answer 23

Connect gray matter of two hemispheres

Question 24

Projection Fiber

Answer 24

Connect hemispheres with lower brain or spinal cord

Question 25

Basal Ganglia

Answer 25

Part of cerebral hemisphere. Coordinates motor moved. Associated with diencephalon and midbrain.

Question 26

Diencephalon

Answer 26

Thalamus, hypothalamus, and epithalamus. Sorts/edits/replays input.

Question 27

Thalamus

Answer 27

Part of diencephalon. 80%. Relays signals and regulates conciousness

Question 28

Hypothalamus

Answer 28

Part of diencephalon. Controls autonomic NS, regulates temp, sweating, hunger, thirst, etc.

Question 29

Epithalamus

Answer 29

Part of diencephalon. Has pineal gland that secretes melatonin.

Question 30

Brain Stem

Answer 30

3 regions, midbrain, pons, and medulla oblongata. Controls automatic behavior for survival.

Question 31

Midbrain

Answer 31

Part of brain stem. Pain suppression, visual reflex, and auditory relay.

Question 32

Medulla

Answer 32

Part of brain stem. Has cardiovascular center and respiratory center. Regulates vomiting, hiccups, swallowing, coughing, etc

Question 33

Cerebellum

Answer 33

Allows smooth, coordinated movements. Role in modulating thinking, language, and emotion. Has arbor vitae.

Question 34

Meninges

Answer 34

3 layers: dura, arachnoid, and pia mater. Covers and protects CNS

Question 35

Arachnoid mater

Answer 35

Middle weblike layer. Seperated from dura by subdural space.

Question 36

Pia Mater

Answer 36

Delicate connective tissue that clings tightly to the brain

Question 37

Limbic System

Answer 37

Coordinates emotions

Question 38

Reticular Formation

Answer 38

Sends impulses to cerebral cortex to keep it alert. Filters out certain stimuli