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Central Sci Ch 19

Chapter 19 Science review sheet

Transports materials to and from your cells. Cardiovascular system
Made of three parts heart, blood and blood vessels. Cardiovascular system
Body contains 5 liters(L). blood
Made of cell, cell parts and plasma(the fluid part of the blood). blood
Most abundant cells in the body. red blood cells
Contains Iron(Fe) and O2 bonds to the FE. red blood cells
b/c. they are flat there is more surface area to carry more O2. red blood cells
Made in bone marrow. red blood cells
Contain hemoglobin which makes cells red and transport oxygen(O2). red blood cells
Destroy pathogens-bacteria, viruses and other microscopic particles that make you sick. white blood cells
Some engulf pathogens. white blood cells
Some release antibodies which destroy pathogens. white blood cells
Some engulf body cells that are dead or damaged. white blood cells
Made in bone marrow. white blood cells
If the cells are lacking in iron not as much of this will be transported in the body. oxygen
Only live 5 – 10 days. platelets
Clump together when there is a cut less blood is lost. platelets
Size of your fist. heart
Pumps oxygen poor blood to the lungs and oxygen rich blood to the body. Heart
Upper chambers of the heart. Atrium
Lower chambers of the heart. Ventricle-
Located between atria and ventricles; prevent blood from going backwards. valves
Receives blood from the body. Atrium
Push blood out to the body. Ventricles
______ side of heart receives blood low in O2 and high in CO2. Right
______side of heart receives blood high in O2 and low in CO2. Left
Hollow tubes that transports blood. blood vessels
Direct blood away from the heart and to the body. arteries
Blood vessels with thicker walls. arteries
Smallest blood vessels in the body. capillaries
Cells must pass through one at a time. capillaries
Direct blood back into the heart. veins
Force exerted by blood on the inside walls of a blood vessel. blood pressure
Normal is 120/80. blood pressure
Inside large arteries when ventricles contract. systolic pressure
Inside arteries when ventricles relax. diastolic pressure
Chemicals on surface of RBC. antigens
Chemicals in plasma that bind to antigens not found on their RBC’s. antibodies
Has A antigens and B antibodies. blood type A
Has B antigens and A antibodies. blood type B
Has AB antigens and not antibodies. blood type AB
Has no antigens and AB antibodies. blood type O
Its RBC’s do not have antigens so recipients’ blood will not attack it. Universal donor Type O
B/C they do not produce antibodies against any antigens on the donor’s blood cells. Universal Recipient Type AB
Created by: kyky0597