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Science 3rd nine week
Terms in this set (53)
Maintenance of stable conditions inside your body
Tissue that covers the outside of the body and lines the inner surface of the body.
Tissue that fills in spaces and connects other tissues together, supports protects, nourishes and insulates organs.
tissue that contracts and relaxes to allow movement, makes up some organs.
Transmits Messages to the body.
Example of Epithelial Tissue
Example of Connective Tissue
Ligaments, cartilage, and blood
Example of Muscular Tissue
Diaphragm, heart, Biceps, and triceps.
Example of Nervous Tissue
Brain, Spinal cord, nerves.
5 functions of the skeletal system
1. Provides shape and support
2. Enables you to move
3. produces your organs
4. provides blood cells
5. Stores minerals and materials until they are needed
A place in the body where two bones come together. Allows bones to move in different ways.
Strong connective tissue that holds bones in movable joints together.
A more flexible connective tissue that covers the ends of the bones, and keeps them from rubbing against each other.
This type of joint allows forward or backward motion. Found in the knee and elbow.
This type of joint allows the greatest range of motion. Found in your hips and shoulders
This type of joint allows one bone to rotate around another. Found in your neck. Allows your neck to turn side to side
This type of joint allows one bone to slide over another. Found in the wrist and ankle
Bones that form the backbone
Longest bone in the body
Type of muscle found in the heart
3 functions of the digestive system
1. Breaks down food into molecules the body can use
2. The molecules are absorbed into blood and carried thought the body
3. Wastes are eliminated from the body
The process by which your body breaks down food into small nutrient molecules
The process by which nutrient molecules pass through the wall of your digestive system into your blood.
Foods are physically broken down into smaller pieces. Ex: when you chew your food into small pieces. Occurs in the mouth and stomach.
Chemicals produces by the body breaks food into smaller chemical building blocks. Occurs in the stomach
Involuntary waves of muscle contractions to push food towards the stomach
Millions of tiny finger shaped structures
a flap of tissue that seals off your windpipe when you swallow preventing food from entering
A thick slippery substance produced by the body. found in the esophagus, helps food move along.
largest organ inside the body
upper chambers that receives blood that comes into the heart
Left and Right Atrium
lower chambers that pump blood out of the heart
Left and Right Ventricle
A group of heart cells that send out signals that make the heart muscles contract
where is the peacemaker located?
the right atrium
Blood vessels that carry blood away from the heart
Blood vessels that carry blood back to the heart
Tiny narrow vessels in which blood from arteries flow into
a Flap of tissue that prevents blood from flowing backwards. Located between the ventricles and the large blood vessels that carry blood away from the heart
how do needed substances get to body cells?
how are blood types determined?
by proteins known as marker molecules that are located on the red blood cells.
a disorder in which a persons blood pressure is constantly higher than normal
the liquid part of blood. 90% is water and the other 10% is dissolved materials. Many wastes produced by cell processes are carried away by this
take up oxygen in the lungs and deliver it to cells elsewhere in the body
Red blood Cells
The body´s disease fighters
white blood cells
cell fragments that play an important part in forming blood clots.
2 main functions of the respiratory system
1. moves oxygen from the outside environment into the body
2. Removes carbon dioxide and water from the body
The process in which oxygen and glucose undergo a complex series of chemical reactions inside cells. Produces carbon dioxide and water. Refers to chemical reactions inside cells
a large dome shaped muscle that that plays an important role in breathing
Tiny sacs of lung tissue specialized for the movement of gasses between air and blood. After air enters an alveolus, oxygen passes through the wall of the alveolus and then through the capillary wall into the blood. carbon dioxide and water pass from the blood into the alveoli In the beginning of gas exchange you blood has alot of carbon dioxide and little oxygen an by the end your blood has little carbon dioxide and a lot of oxygenn
alveoli and gas exchange
main function of the excretory system
collects wastes produced by cells and removes the waste from the body
small filtering structures found in the kidneys that removes wastes from blood and produces urine.
a sacklike muscular organ that stores urine
Glucose found in urine could indicate...
this person might have diabetes.
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