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Human Body Hand Middle School
N/A
42
Science
7th Grade
03/11/2010

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Cards

Term
Digestion
Definition
the process by which you body breaks down food into smaller nutrient molecules
Term
Digestive Systems 3 main functions
Definition
-breaks down food
-bloodstream absorbs food molecules and nutriance
-eliminates waste
Term
Mechanical Digestion
Definition
(chewing) when food is physically broken down
Term
Chemical Digestion
Definition
Uses chemicals to break down food
(example - saliva)
Term
the mouth
Definition
the begining of the digestive system
Term
Esophagus
Definition
connects the mouth and stomach
Term
Peristaisis
Definition
a series of muscel contractions that keep the food moving in one direction
Term
the stomach
Definition
Most mechanical digestion happens here
Term
the small intestine
Definition
most chemical digestion and absorption of food molecules takes place here
Term
Liver
Definition
produces chemicals used in chemical digestion
Term
Gall Blader
Definition
Stores Bile (breaks up fat)
Term
Panacrease
Definition
produces chemicals that the small intestine uses to break down starches, protein, and fat
Term
Large intestine
Definition
functions to absorb water into the body
Term
Rectum
Definition
Compresses waste materials that are to be eliminated through the anus
Term
Circulatory System
Definition
carries needed substances like Water, gluclose, oxygen, carbon dioxide and other nutriences away from cells
Term
Arteries
Definition
blood vessels that carry blood away from the heart
Term
viens
Definition
blood vesels that carry blood to the heart
Term
Capillaries
Definition
sites of gas exchange
Term
Respitory System
Definition
moves oxygen into your body and carbon dioxide out
Term
Cellular Resperation
Definition
where oxygen and carbon dioxide are changed into energy
Term
Bronchi
Definition
conect the trachea to the lungs
Term
diaphram
Definition
a muscle that draws air into the lungs
Term
Excretory system
Definition
collects waste and removes it from the body
Term
kidneys
Definition
excretory organs that eliminate urine
Term
ureters
Definition
tubes that connect the kindney to the bladder
Term
uretha
Definition
a tube were the urine exits
Term
Stimulus
Definition
a change in the enviorment that makes you react in some way
Term
Nervous System
Definition
receives and reacts to information from the inside and outside of the body
Term
Neurons
Definition
special cells that carry information through the nervous system
Term
Centeral nervous system
Definition
consists of the brain and spinalcord
Term
Peripheral nervous system
Definition
consists of all nervous outside of the centeral nervous system
Term
The three main regions of the brain
Definition
-cerebellum
-cerebrum
-brainstem
Term
cerebrum
Definition
-interprets info
-controls movment of the skeletal muscels
-carries out complex metal process
Term
cerebellum
Definition
coordinates the actions of your muscles and helps you keep your balance
Term
Brain Stem
Definition
controls your bodies involuntary actions
Term
Somatic
Definition
controls voluntary actions
Term
Automic
Definition
controls involuntary actions
Term
The skeletal System
Definition
-provides support
-protects internal organs
-produces blood cells
Term
Muscular System (threee kinds of muscle)
Definition
-skeletal
-smooth
-cardiac
Term
Skeletal Muscles
Definition
voluntary, move bones
Term
Smooth Muscle
Definition
control involuntary actions
Term
Cardiac
Definition
Involuntary, form the heart beat
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