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Behavior > Nervous System > Flashcards

Nervous System Flashcards

1
Q

Nervous system

A

Central: brain. Spinal cord

Peripheral: afferant neurons–> takes message to brian (CNS)

Efferent neurons–> takes message away from brian (CNS)

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2
Q

functions of nervous sys

A

Basic: motor, sensory, automatic

Higher: cognition, Emotions, Consciousness

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3
Q

Motor unit

A

A nerve connecting to several muscle cells

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4
Q

Afferent

A

Stimulus.

Somatosensory neurons

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5
Q

Efferent

A

Response to stimulus. Lower motor neurons

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6
Q

Autonomic nervous system

A

Efferent
Smooth muscle
Cardiac muscle
Gland cells

PARAYMPATHETIC SYPMATHETIC

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7
Q

Grey matter

A

Neuron somas

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8
Q

White matter

A

Mylenated axons

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9
Q

Lobes of brain

A

Frontal lobe: brocas, motor, prefrontal lobe, logic

Perietal lobe: somatosensory cortex

Occipital lobe: vision

Temporal cortex: sound, wernickes area

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10
Q

Contralateral control

A

Each side of brain controls different side of body

Dominant hemisphere: language,

Non dominant hemisphere:

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11
Q

Old brian

A

Brain stem: medulla, pons
Heart beat, breathing

Reticular formation
Filter, arousal

Thalamus:
Relay station

Cerebellum:
Coordinate movement

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12
Q

Cerebellum

A

Coordinates movement

Motor plan

Position sense

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13
Q

Brain stem

A

Midbrian

Pons

Medulla

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14
Q

Reticular formation

A

Autonomic functions: circulation, HR, etc

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15
Q

Subcortical cerebrum

A

Basal ganglia: motor, emotion, cognition

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16
Q

Cerebral cortex

A

Lobes

17
Q

Neurotransmitter

A

Glutamate: stimulators

GABA, glycine: inhibitors

Acetylcholine: largely for muscles (ANS)
Histamine
Norepinephrine 
Serotonin
Dopamine
18
Q

Endocrine system

A
  1. Proteins: small
  2. Steroid: cholesterol, lipids
  3. Tyrosine derivatives: thyroid, catecholamines
19
Q

Endocrine organs

A

Hypothalamus

Pituitary gland: master gland, stimulates other glands

Thyroid: metabolism (T3, T4)

Parathyroid: calcium

Adrenal glands: cortex-steroids, medulla-catecholamines

Gonads: sex hormones

Pancreas: blood sugar

20
Q

Negative feedback

A

Main way secretion is controlled

Signal produced downstream inhibits signals upstream in the cascade

Behavior (12 decks)

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