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Ch.23 Vocab
Ch. 23 Vocab
21
Science
8th Grade
10/30/2013

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Term
Cardiovascular System
Definition
a collection of organs that transport blood to and fro your bodys cells; the organs in this system include the heart, the arteries, and the veins.
Term
Blood
Definition
a connective tissue made up of platelets, white blood cells,red blood cells and plasma
Term
Arteries
Definition
blood vessels that direct blood away from the heart
Term
capillaries
Definition
the smallest blood vessels in your body
Term
veins
Definition
blood vessels that direct blood back to the heart
Term
Pulmonary Circulation
Definition
The circulation of blood between your heart and lungs
Term
Systemic Circulation
Definition
the circulation of blood between the heart and the rest of the body
Term
Blood Pressure
Definition
The force exerted by blood on the inside of the walls of a blood vessel
Term
Lymphatic System
Definition
collects the excess fluid and returns it to your blood
Term
Lymph
Definition
Fluid and particles absorbed into lymph capillaries
Term
Lymph Nodes
Definition
small bean-shaped organs, where particles, such as pathogens or dead cells are removed from the lymph.
Term
Thymus
Definition
Releases WBCs
Term
Spleen
Definition
Filters blood and releases WBCs
Term
Tonsils
Definition
small masses of soft tissue located at the back of the nasal cavity, on the inside of the throat, and at the back of the tounge
Term
respiration
Definition
The entire process by which a body obtains and uses oxygen and gets rid of Carbon Dioxide and water.
Term
Respiratory System
Definition
Consists of the Lungs, throat, and passgae ways that lead up to the lungs.
Term
Pharynx
Definition
Your throat
Term
Larynx
Definition
Voice box, contains the vocal cords
Term
Trachea
Definition
The windpipe, a passage way for air traveling from the larynx to the lungs.
Term
Bronchi
Definition
the two tubes that conect the lungs with the trachea.
Term
Alveoil
Definition
tiny sacs that form the bronchiole branches of the lungs
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