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What is physiology
function of the body
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What are the 11 organ systems in the body
Circulatory, digestive, endocrine, immune, integumentary, musclar, nervous, reproductive, respritory, skeletal, urinary.
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circulatory
- transports gases
- Heart and blood vessels
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digestive
- breaks down food for energy
- stomace, liver, galbladder, small intestine
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endocrine
- regulate hormones in the body
- pancreas, testes, ovaries...
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immune
- fights off infection
- bone marrow, thymus gland, spleen, lymph nodes
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nervous
- controls everything
- spinal cord. nerves, brain
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reproductive
- creates new offspring
- testes & overies
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skeletal
- structure and protection
- bones and joints
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urinary
filters blood and expells waste
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What is the function of the skin
protection, temp. regulation, excreation, synthesis
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3 levels of skin from superficial to deep
Epidermis, dermis, hypodermis
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what 3 tissues make up the skin
- muscle tissue
- nervous tissue
- Epithelial tissue
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What protein makes up the epidermis and hair
Horny Protein
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What is the function of a seabaceous gland
produces sebum
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what is the function of a sweat gland
Temp. Control
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What is the Aveoli
Air sack in lings where gas exchange happens
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Humans have _____lungs?
2 lings with 2 lobes on the left and 3 on the right
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What is a open circulatory system
blood not contained in vessels
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Arteries, veins, and capillaries do what?
- Arteries carry blood away from heart.
- Veins carry blood to heart
- Capillaries connect arteries to veins
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Which layer of the hair containes the pigment that gives it it's color
Cortex
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3 different type of skeletal systems in animals
- hydraulic- no bones (worms)
- Exoskeleton- skeleton on outside (crabs)
- endoskeleton- skeleton on inside (humans)
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Bone tissue
form skeletal framework
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cartilage
padding for joints; main structure for aquatic animals (sharks)
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Tendons
attach muscle to bone
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Ligament
connect bone to bone
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3 types of bone cells
- osteoblast- builder
- osteocytes- trapped
- osteoclast- heal
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What is in spongy bone
Bone marrow (creates red blood cells)
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3 types of muscle tissue
- skeletal- attaches to bone
- cardio- only in the heart
- smooth muscle- hollow organs
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difference between voluntary and involuntary muscle
- Voluntary- all skeletal muscle
- involuntary- heart and organs
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