Chapter 2 Flashcards

(16 cards)

1
Q

THE 4 LOBES

A

FRONTAL:MOTOR CORTEX

PARIETAL: SENSORY, FINGERS,

TEMPORAL: HEARING

OCCIPITAL: SEEING, VISUAL

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2
Q

WHAT IS IN THE CENTRAL NERVOUS SYSTEM

A

THE BIOLOGICAL PROCESS:

BRAIN PLAYS IMPORTANT ROLE IN OUR BEHAVIOR & MENTAL PROCESSES

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3
Q

ALL PARTS OF THE NEURON

A

To receive, integrate and transmit

DENDRITES: RECEIVE SIGNALS FROM OTHER CELLS.

AXON: CARRIES SIGNAL AWAY FROM SOMA & OTHER CELLS.

MYELIN SHEATH: INSULATES AXON & SPEEDS UP TRANSMISSION.

TERMINAL BUTTONS-RELEASES NEUROTANSMITTERS AT SYNAPSES. (CHEMICALS)

SYNAPTIC CLEFT: A MICROSCOPIC GAP BETWEEN THE TERMINAL BUTTON OF ONE NEURON AND THE CELL MEMBRANE OF ANOTHER NEURON

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4
Q

ALL THE CHEMICALS/NEUROTRANSMITTERS

A

Acetylcholine (ACh)
Stimulates firing of neurons
Involved in action of muscles, learning, memory
Alzheimer disease: ACh deficiency

Gamma aminobutyric acid (GABA)
Keeps many neurons from firing
Anxiety: Low levels of GABA
GABA is also linked to depression

Norepinephrine
Inhibits firing of neurons in CNS
Excites heart muscle, intestines, urogenital tract
Depression: Too little norepinephrine
Agitated, manic states: Too much norepinephrine

Dopamine
Helps to control voluntary movement
Affects sleep, mood, attention, learning, rewards
Parkinson disease: Low levels of dopamine
Schizophrenia: High levels of dopamine

Serotonin
Involved in regulation of sleep, mood, attention, learning
Depression: Lowered levels of serotonin

Endorphins
Natural opiates that mainly stimulate firing of neurons
Shield body from pain
Elevate feelings of pleasure

Oxytocin
Hormone and neurotransmitter
Important role in experience of love and social bonding

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5
Q

MEDULLA

A

BREATHING AND REFLEXES

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6
Q

CORPUS COLLOSUM (WHY WOULD WE SPLIT THIS)

A

SEVERE/LIFE THREATENING FORMS OF EPILEPSY

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7
Q

ENDORPHINS

A

Natural opiates that mainly stimulate firing of neurons
Shield body from pain
Elevate feelings of pleasure

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8
Q

TWO PARTS OF THE NERVOUS SYSTEM

A

CENTRAL NERVOUS SYSTEM

PERIPHERAL NERVOUS SYSTEM

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9
Q

DIFFERENCE BETWEEN SYMPATHETIC AND PARASYMPATHETIC NERVOUS SYSTEM

A

SYMPATHETIC: (FIGHT or FLIGHT) ACTIVE DURING EMOTIONAL RESPONSE

PARASYMPATHETIC: (CALMS) RESTORE BODYS RESERVES OF ENERGY

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10
Q

ROLE OF THE MYELIN SHEATH

A

INSULATES AXON & SPEEDS UP TRANSMISSION.

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11
Q

WHAT IS MEANT BY PLASTICITY

A

THE BRAIN CAN COMPENSATE FOR INJURIES TO PARTICULAR AREAS.

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12
Q

AMYDGALA

A

EMOTIONS & DISCRIMINATION OF OBJECTS THAT ARE NECESSARY FOR THE ORGANISM’S SURVIVAL

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13
Q

CREREBRUM

A

THINKING & LEARNING (BIGGEST PART OF THE BEAIN)

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14
Q

HIPPOCAMPUS

A

INVOLOVED IN MEMORY

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15
Q

PONS

A

INVOLVED IN SLEEP & AROSAL

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16
Q

CEREBELLUM