Thermoregulation, Excretory System, Nervous System, Muscular System

Created by megamime 

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thermoregulation

what body temperature is maintained by

conduction

heat moves from a higher place of higher to lower temperature

convection

heat transfer by airflow

evaporation

water leaves body as sweat

radiation

heat loss through electromagnetic waves

CNS (central nervous system)

brain and spinal chord, voluntary movement

PNS (peripheral nervous system)

sensory and motor division

ANS (autonomic nervous system)

controls involuntary movement

neuron

functional system of nervous system

dendrite

bring nerve impulses to cell body

axon

away from cell body to target cells

sensory neurons

synaptic connections with other neurons

depolarized

threshold potential reached

re-polarized

potential back to initial levels

neurotransmitters

diffused through a gap in synaptic knob

cerebellum

coordination and balance

medulla oblongata

control of involuntary activity in brain

hypothalamus

thermo, hunger, and hydration regulator

amyglada

controls impulsive emotions and anger

cerebrum

separated into four parts, by one corpus callosum

frontal lobe (cerebrum)

speech, motor cortex

parietal lobe (cerebrum)

speech, taste, reading, somatosensory

occipital lobe (cerebrum)

vision

temporal lobe (cerebrum)

hearing and smell

skeletal muscle

voluntary activity, multiple nuclei per cell, striated appearance

smooth muscle

involuntary muscle, contracts slowly, controlled by ANS, lines important organs and tracts

cardiac muscle

heart muscle, multiple nuclei

neuromuscular junction

where acetylcholine from neurons is released to muslces

myosin

powers muscle contraction

actin

what myosin attached to, exchange ATP and ADP

tropomyosin

regulates muscle contraction by blocking where myosin and actin come together

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