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Chpater 5 Human body

Human Body

Nerve Cell or Neuron Basic working unit of the nervous system
Infectious Disease Passed from organism to another: bacteria and viruses are pathogens that infectious diseases
Pathogens Bacteria and veruses/don't belong in your body; organisms that cause some diseases:enter your body and multiplies which creates and infection
Antibody Chemical that the body makes to stop pathosens from infecting other cells
Immune System Helps protect you from many pathogens made of blood cells and other tissues
Vaccine kind of medicine that protects you from a disease
Penicillin Becames the first antibiotic in 1928. Fleming discovered that a fungus, Penicillium, released a subtace that kills bacteria
Voluntary Muscle Mucles that control your skeletal muscles and help you move
smiling, running, chewing voluntary muscle
Arm volutary muscle when you bend your arm, the first muscle relaxes and the others contract
Involuntary muscles muscles you can't control
breathing, digesting food, keep your blood flowing, helping your eyes adjust to ligh involuntary muscle
Skeletal Muscles voluntary/ attached to your bones which helps you move
Smooth Muscle Involuntary - works automatically in different organ systems
Cardiac Muscle Involuntary - found only in the heart
Blood returns from the body enters the right side of the heart
Right pump sends bloods filled with carbon dioxide to the lungs carbon dioxide leaves blood- oxygen enters the blood
Blood from the lungs enters the left side of the heart
Left pump moves blood into the body which needs oxygen
Heart pumping starts all over again when the blood return to the heart for oxygen
Mouth teeth and saliva break down food
esophagus-25 cm long smooth muscles in esophagus contract and move food toward stomach
Stomach- smooth muscles mash th food and mix in juices pushes food into small intestine
Small intetine 7 meters long and 2.5 cm wide digestion takes place during 3-6 hours juices in small intesting and other organs break the food
Large Intetine Removes much of the liquid and stores the solid waste until it leaves the body
Created by: kkoester