Unit 17 Human Body System

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integumentary

helps maintain homeostatis, sense organs

skeletal

supports body's framework, protects internal organs, works with muscle

Muscular

ATP triggers muscle movement

Digestive

breaks down food, absorbs nutrients and excretes waste

Endocrine

internal control of the body is driected by 2 systems of endocrine and nervous system

nervous

sends electrical and chemical messages

respirtory

gas exchange, air goes into bronchus then bronchioles then aviol

ciculatory

to circulate and regulate oxygen, and carbon

excretory

removes toxins, dead bacteria

reproductive

make kids

axil skeleton

supports the skull

appendicular skeleton

supports bone for movement

joints

found where two bones meet

ligaments

is touch band of connective tissue that attaches one bone to another

tendons

connects bone to muscle

bone marrow

a soft tissue inside the bone that produces blood cells

mechanical digestion

the physical breakdown of food or chemical digestion

chemical digestion

saliva has amalase

peristalsis

the process of wave-like muscle contractions of the alimentary tract that moves food along

pepsin

breaks down protein

bile

breaks fat

pancreatic juices

help digest food further

epiglottis

flap of skin to preven food or water going down the wrong tube

esophagus

tube that food and water go down

stomach

filled with hydrochloric acid has protein, and holds food

gall bladder

storage

pancreases

release enzymes that breaks down sugar, fats and proteins

small intestine

takes chyme from the stomach and sends it to the small intestine, enzymes from pancrease and liver digest food even more

large

takes waste from small intestine and removes it out the rectum, removes as much water and supplies vitamens B and K

endocrine

sends chemical signals

nervous system

electrical signals

sensory neurons

carry signals from outside world to spinal chord

motor neurons

carry response impulses away from the brain and spinal chord to a muscle

interneurons

in brain and spinal chord they process incoming impulsesand pass impulses to motor neurons

central nervous

brain and spinal chord makes descions

peripheral nevous system

all the nerves that branch off the spinal chord interact with the body and outside world

artery

carries blood AWAY from the <3

capillary

connect the braches of the arteries and veins

vein

carries blood from the tissue to the <3

sends waste to ureters

what is the job of the kidney

filtration

filters blood to remove waste products

reabsorption

take back as much water and good materials

secretion

urethra is a tube that secretes waste

direct, air, vector

how is a diseases transmitted

defend body against diseases and absorbs liquid

main function of the lymphatic system

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