Biology

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Homeostasis
The body's internal environment remains constant despite changes in the external environment
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Negative Feedback Mechanism
1.Receptors detect change 2. Message sent 3.Response initiated 4 Body returns to normal state
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Blood sugar
Pancreas secretes INSULIN and GLYCOGEN to control glucose levels
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Body temperature 37* (temp that enzymes work best)
Controlled by sweating/shivering
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Water Content (to protect cells)
lungs, skin, kidneys
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Salt and water balance
Kidneys
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Carbon Dioxide level
lungs
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Oxygen to the cells
Respiratory and circulatory systems
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Hormones
chemicals secreted by glands
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Endocrine glands
Organs that produce hormones
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Central Nervous System
Brain and Spinal Cord
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Peripheral Nervous System
made up of sensory and motor neurons all over your body
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Neuron
A nerve cell
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Nerve
A bundle of neurons
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Sensory neuron
A nerve cell that detects changes in the environment and send message to Central Nervous System
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Motor neuron
nerve cell that causes muscle or gland to respond to stimulus
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Interneuron
Link between sensory neurons and motor neurons
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Effectors
muscles or glands that respond to a stimulus
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Neurotransmitter
Chemical released to conduct impulse across synapse
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Respiration
Glucose +Oxygen =CO2 +water+energy
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Waste products of respiration
CO2 + nitrogenous waste
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Nitrogenous waste (Protein Metabolism)
Liver -> Urea -> Kidneys ->Urine
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Enzymes
Proteins that regulate chemical reactions in the body
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Other cards in this set

Card 2

Front

Negative Feedback Mechanism

Back

1.Receptors detect change 2. Message sent 3.Response initiated 4 Body returns to normal state

Card 3

Front

Blood sugar

Back

Preview of the front of card 3

Card 4

Front

Body temperature 37* (temp that enzymes work best)

Back

Preview of the front of card 4

Card 5

Front

Water Content (to protect cells)

Back

Preview of the front of card 5
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