Atructure Of The Brain

Question 1

What are the 2 classifications of collections of cell bodies in CNS?

Answer 1

Nucleus/nuclei

Ganglion/ganglia

Question 2

Ganglia is within …

Answer 2

PNS

Question 3

Nuclei is within …

Answer 3

CNS

Question 4

Nerve vs. tract

Answer 4

Nerve/nerve fiber: collection of axons

Tract: collection of nerve fibres sharing a common function

Question 5

Gray matter

Answer 5

Location of (nuclei) the cell bodies inside CNS

Question 6

White matter

Answer 6

Location of myelinated axons inside CNS

Question 7

What are the 3 white matter tracts?

Answer 7

Association
Commissural
Projection

Question 8

Name of very deep grooves

Answer 8

Fissures

Question 9

Ridge closer to frontal lobe

Answer 9

Precentral gyrus

Primary motor cortex

Question 10

Ridge closer to temporal lobe

Answer 10

Postcentral gyrus

Primary sensory cortex

Question 11

What is the irregular paired masses of Gray matter located deep in white matter or cerebral hemisphere?

Answer 11

Basal nuclei

Question 12

What is the function of basal nuclei?

Answer 12

Action selection.

Tells primary motor cortex what actions it is allowed to initiate

Question 13

Thalamus function?

Answer 13

Receives , groups and relays info to cerebral cortex.

Question 14

Hypothalamus function?

Answer 14

Homeostasis
Commands endocrine system 
Controls food and water intake 
Sleep and circadian rhythms 
Emotional response 
Memory

Question 15

Epithalamus function?

Answer 15

Houses pineal gland

Question 16

Function of cerebellum?

Answer 16

Maintains movement.
Balance
Body posture
Fine coordination

Question 17

What initiates movement?

Answer 17

The primary motor cortex within the precentral gyrus.

Question 18

What allows the initiation of movement?

Answer 18

Basil nuclei

Question 19

What coordinates movement?

Answer 19

Cerebellum

Question 20

Midbrain function?

Answer 20

Relay station for visual and auditory information

Question 21

How does the midbrain relay auditory and visual information?

Answer 21

Via superior and inferior colliculi

Question 22

Pons function?

Answer 22

Serves as communication and coordination center for spinal cord and various parts of brain.

Question 23

Medulla functions?

Answer 23

Controls auditory (involuntary) functions 
(Heart rate etc.)

Question 24

What are the two different “collections” of cell bodies inside and outside the CNS called?

Answer 24

Nucleus (CNS) and ganglion (PNS)

Question 25

Definition of nucleus...

Answer 25

Collection of cell bodies inside CNS

Question 26

Definition of ganglion

Answer 26

Collection of cell bodies inside PNS

Question 27

Definition of nerve/nerve fiber?

Answer 27

Collection of axons

Question 28

Definition of tract

Answer 28

Collection of nerve fibers sharing a common function

Question 29

Define Gray matter

Answer 29

Location of cell bodies in side CNS (Nucleus)

Question 30

Define white matter

Answer 30

Location of myelinated axons inside CNS

Question 31

Which is superficial in the brain, white matter or gray matter?

Answer 31

Gray matter

Question 32

Which is superficial in the spinal cord, white matter or gray matter?

Answer 32

White matter

Question 33

Which white matter tracts connect same hemispheres?

Answer 33

Association tracts

Question 34

Which white matter tracts connect opposite hemispheres?

Answer 34

Commissural tracts

Question 35

Which white matter tracts project to lower regions of brain and spinal cord?

Answer 35

Projection tracts

Question 36

Subdivisions of brainstem from superior to inferior...

Answer 36

Midbrain Pons Medulla oblongata

Question 37

What connects the two hemispheres?

Answer 37

Corpus callosum

Question 38

Functions of frontal lobe are...

Answer 38

Personality, primary motor cortex

Question 39

Functions of parietal lobe are ...

Answer 39

Primary sensory cortex

Question 40

Functions of temporal lobe...

Answer 40

Primary auditory cortex

Question 41

Function of occipital lobe is...

Answer 41

Primary visual cortex

Question 42

Which lobe is Wernicke's area in?

Answer 42

Temporal lobe

Question 43

What is the function of Wernicke's area?

Answer 43

Where spoken language is understood

Question 44

Name of deep groove that seperates left and right hemispheres

Answer 44

Longitudinal fissure

Question 45

Name of deep groove that seperates cerebellum from cerebrum

Answer 45

Transverse fissure

Question 46

Name of shallow grooves

Answer 46

Sulcus | Sulci

Question 47

Name of ridges.

Answer 47

Gyrus | Gyri

Question 48

_______ consists of thamalus, hypothalamus, and epithalamus.

Answer 48

Diencephalon

Question 49

Function of basal nuclei

Answer 49

Paired, irregular masses of gray matter buried deep within white matter of cerebral hemisphere

Question 50

Gray matter of cerebellum is

Answer 50

Superficial cortex gray matter

Question 51

White matter of cerebellum is

Answer 51

Arbor vitae

Question 52

Cerebellum has left and right wing. True or false?

Answer 52

True