Circulatory System

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what percentage of body mass is blood

8%

do mature red blood cells have a nucleus

no

atrium

upper chamber of heart

between the chambers of the heart; prevent blood from flowing back into the chamber it hs already passed through

valves

how long do red blood cells live

100-120 days

which is a characteristic unique to the pulmonary circulation

an artery that originates at the right ventricle

a disorder in which there are few blood cells or too little hemoglobin in the blood is called

anemia

what is the largest blood vessel in the body

aorta

what is the name of the big blood vessel that transports blood away from the heart

aorta

blood vessels that move blood away from the heart are called

arteries

arteries may be clogged by fatty deposites on their walls, causing the condition known as

atherosclerosis

what are the upper chambers of the heart called

atrium

how is oxygen transported in the blood

attaching to hemoglobin on the red blood cells and carry oxygen

platelets are involved with

blood clotting

venticle

bottom chamber of heart

microscopic blodo vessels that connect arteries and veins are

capillaries

the exchange of nutrients and waste between blood and body tissues occurs across the

capillaries

what are the smallest blood vessels in the body

capillaries

what do platelets have to do with blood clotting

cell fragments that clot blood

how might a lack of dietary iron affect the oxygen-carrying capacity of the blood?

changes structure of hemoglobin to make it harder to carry oxygen

systolic pressure

contraction of ventricle (top number of blood pressure)

supply the heart with oxygen-rich blood

coronary arteries

list two structural differences and two functional differences between erythrocytes and leukocytes

erythrocytes-red blood cell, hemoglobin, no nucles moves oxygen leukocytes-white blood cells, immune system, nucleus, no hemoglobin

what is the term for the process by which blood cells are formed

hematopoeisis

when oxygen is carried by the blood, it is bonded to

hemoglobin

what is the relationship between an erythrocyte and hemoglovbin

hemoglobin rides on the red blood cell and carrys oxygen

which genetic diroder is characterized by abnormal or missing clotting factors

hemophilia

hgh blood pressure

hypertension

what is the funtion of the white blood cell

immune system response

your body reacts to infection by

inreasing its white blood cell count

oxygen-rich blood moves through the pulmonary vein to the lungs to the

left atrium

a disease in which one or more types of white blood cells are produced in greater numbers is called

leukemia

fight bacteria, viruses, and other foreign substances in the body

leukocyte

which type of blood cells fight infection

leukocyte

what subsatances foes blood carry to the cells in the body

nutrients, oxygen

sinoatrial node

pacemaker in right atrium

what is the liquid part of the blood called

plasma

what makes the majority of blood volume

plasma

what is plasma madeof

plasma, erythrocyte, leukocyte, platelets

odd-shaped cell fragments that help clot blood are called

platelets

what type of blood cell is responsible for clotting blood

platelets

distinguish between pulmonary circulation and systemic circulation

pulmonary- goes to lungs systematic- goes to body

which type of blood cell contains hemoglobin

red blood cell

diastolic pressure

relaxation of heart (bottom number of blood pressure)

blood from all parts of the body,except lungs, goes to the

right atrium

blood moves from the right atrium to the

right ventricle

what is most important to the heartbeat

sinoatrial node

where are worn out blood cells removed from circulation and destroyed

spleen

trace the flow of blood flow through the heart

superior vena cava ----->right atrium, tricuspid valve, right ventricle, lungs----->pulmonary veins----->left atrium, bicuspid valve, left ventricle-----> aorta

if someone is having a blood transfusion it is important to know

the donors blood type

from the right venticle, blood moves to

the pulmonary arteries

severe heart murmors may require surgery to replae

valves

blood vessels that carry blood to the heart

veins

which blood vessels transport blood back to the heart

veins (superior and inferior vena cava)

what is plasma

water part of the blood


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