Quiz 2

Question 1

Thalamus

Answer 1

• Just above brain stem
• Main input for sensory info to cerebrum
• Output center for motor info from cerebrum
• Part of limbic system
• Sensory info can have emotional connections

Question 2

Cerebrum

Answer 2

2 hemispheres -

1. Left : Logical & Mathematical
2. Right: Creative & Visual

Question 3

Basal Nuclei (Ganglia)

Answer 3

Located in cerebrum
A) Planning and learning movement patterns
B) Damage= no signal to muscles

Question 4

Cerebral Cortex

Answer 4

A. Analyze sensory information
B. Issue motor commands
C. Generate language

GIA

Question 5

Human’s have :

Answer 5

Largest cerebral cortex (thinking learning language)

Question 6

Animals have:

Answer 6

Mostly sensory information

Question 7

Lateralization

Answer 7

Each side has specific functions

Question 8

How does left and right brain work?

Answer 8

Left brain senses right brain info and sends messages to right side of brain

Question 9

Corpus Callosum

Answer 9

Band of axons
Left and right hemispheres can communicate
Brain compensation if damaged

Question 10

Cerebral Lobes

Answer 10

Parietal
Frontal
Temporal
Occipital

Question 11

Parietal

Answer 11

Somatosensory cortex
Somatosensory Association
Speech Taste Reading

Question 12

Frontal

Answer 12

Speech

Motor Cortex

Question 13

Temporal

Answer 13

Hearing
Speech
Auditory Association

Question 14

Occipital

Answer 14

Visual

Visual Association

Question 15

Primary Somatosensory Cortex (Parietal Lobe)

Answer 15

Most sensory information

Receives and integrates pain/temperature from body receptors

Question 16

Wernickie’s Area (Parietal Lobe)

Answer 16

Receives the visual info
Speech and reading association
Sores word and grammar

Question 17

Broca’s Area (Frontal Lobe)

Answer 17

Wernicke sends signals of what to say

Broca signals motor cortex to move mouth muscles, tongues and lips to form words

Question 18

Motor Cortex (Frontal Lobe)

Answer 18

Sends commands to skeletal muscles

Responds to sensory stimuli

Question 19

Planning and complex movements and thoughts

Answer 19

Frontal Lobe

Question 20

Behavior, motivation and emotions

Answer 20

Limbic Assoc Area

Question 21

Language Comprehension

Answer 21

Wernicke Area

Question 22

Word formation

Answer 22

Brocas Area

Question 23

Why are some body areas more sensitive to pain?

Answer 23

The more brain surface dedicated to the body part the more importance of information

Question 24

Purpose of Nervous System

Answer 24

To pass fast traveling short lived electrical messages to all body parts

Question 25

Pass messages to all body parts in order to

Answer 25

Inform body of external stimuli Inform body of internal stimuli Send messages through body as a response to stimuli

Question 26

Three steps to information processing:

Answer 26

Sensory input Integration Motor output

Question 27

Neurons target for

Answer 27

``` Muscle Nerves Gland (Pituatary & Adrenal) Heart Diaphragm ```

Question 28

Cell body

Answer 28

Nucleus, organelles, protein syntheses

Question 29

Axon Hillock

Answer 29

Electrical impulse starts axon

Question 30

How neuron travels:

Answer 30

Neuron learning from previous cell Dendrite receive messages from previous neuron or sensory cell Electrical impulse travels down cord because of the axon hillock Axon carries the electrical message down Synaptic terminals pass the message into synapse to next cell

Question 31

Membrane Potential

Answer 31

Difference in electrical voltage on each side of neurons membrane (inside and outside)

Question 32

Resting Potential

Answer 32

Polarized No message -60mV--80mV

Question 33

Action Potential

Answer 33

Depolarized Electrical message Positive INSIDE neuron because of the sodium ions rushing in

Question 34

Synaptic Terminals

Answer 34

``` Ends of neuron Releases neurotransmitters (chemicals) into synapse ```

Question 35

Synapse

Answer 35

Space between the neighboring neurons | Neurotransmitters cross here

Question 36

Myelin Sheath

Answer 36

Made up of Schwann cells Insulate axon Protect axon Saltatory conduction

Question 37

Saltatory Conduction

Answer 37

Speeds up messages