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Circulatory System

The Human Body- Unit 7

QuestionAnswer
What is the circulatory system? A collection of organs that work together to transport materials to and from the cells of the body.
What are the parts of the circulatory system? The heart and blood vessels.
What is coronary circulation? -circulation of blood within the heart
What is systemic circulation? -circulation of blood between the heart and the rest of the body
What is pulmonary circulation? -circulation of blood between the heart and lungs
What does the body need that the lungs can supply? -oxygen
What kind of blood goes to the body? -oxygen rich
What kind of blood goes to the lungs? -oxygen poor
What kind of blood goes from the body to the heart? -oxygen poor
What kind of blood goes from the lungs to the heart? -oxygen rich
What is plasma? -the fluid portion of the blood
What does plasma contain? -water, nutrients and minerals, sugar and protein
What are red blood cells? -the most abundant cell in the blood
What do red blood cells carry? -they carry oxygen using hemoglobin
Where are red blood cells made? -they are made in bone marrow
What do white blood cells do? -they destroy pathogens -some engulf bad cells -some secrete antibodies -they clean wounds
What are pathogens? -they are anything that goes into your body, that shouldn't be there (bacteria, virus, etc)
Where are white blood cells made? -they are made in bone marrow
What are platelets and what do they do? -they are fragments of cells -they create blood clots they only last 5-10 days
What is the heart? -It is the muscular organ that pumps blood throughout the body (it is about the size of your fist)
What kind of blood goes through the right side of the heart? -oxygen poor
What is the function of the right atrium? -it collects oxygen poor blood from the body, sends it to the right ventricle
What is the function of the right ventricle? -it sends oxygen poor blood to the lungs to pick up oxygen
What kind of blood goes through the left side of the heart? -oxygen rich
What is the function of the left atrium? -it collects oxygen rich blood from the lungs, sends it to the left ventricle
What is the function of the left ventricle? -it sends oxygen rich blood to the body to distribute oxygen to the cells. It picks up CO2 and returns to the right atrium.
What are blood vessels? -a hollow tube that transports blood
What is the function of arteries? -they carry blood away from the heart
What type of blood do arteries contain? -oxygen rich blood
What do arteries do? -they pump out of the heart with a high pressure (your pulse)
What are capillaries? -they are the smallest blood vessel in the body (one cell thick)
What do capillaries do (what do they join)? -they join arteries and veins
What do capillaries allow cells to do? -cells move single file through them, allowing for diffusion of substances (O2, CO2, nutrients)
What occurs in capillaries? -gas exchange (O2 and CO2)
What is the function of veins? -they carry blood back to the heart
What type of blood do veins contain? -oxygen poor blood
What do veins have and what do they prevent? -they have valves to prevent backflow
What does a skeletal muscle contraction do? -it squeezes veins to push blood to the heart
What is blood pressure? -the force exerted by blood on the inside walls of a blood vessel
What happens during exercise? -your cells need more oxygen, so your heart beats faster
How are blood types determined? -they are determined by the type of antigen found in the cells
What are the 4 blood types? -Types A, B, AB, and O
Describe Type A blood. -the cells have A antigens; they make B antibodies
Describe Type B blood. -the cells have B antigens; they make A antibodies
Describe Type AB blood. -the cells have A & B antigens; they do not make any antibodies -it is the universal recipient
Describe Type O blood. -no antigens; they make A & B antibodies -the universal donor
What is Atherosclerosis? -a fatty material builds up on the inside of blood vessels; can lead to a heart attack
What is High Blood Pressure? -it is caused by atherosclerosis; it overworks the heart and blood vessels- can lead to a stroke (parts of the brain do not receive oxygen and nutrients
Created by: carlsond