Biology

Front 1

microscopic, thin- walled chambers that make up the tissue of the lungs and allow gases to pass between the air and the bloodstream; sing., alveolus

Back 1

alveoli

Front 2

a condition in which the ability of the blood to carry oxygen is reduced, causing weakness and fatigue

Back 2

anemia

Front 3

the opening of clogged arteries

Back 3

angioplasty

Front 4

a blood vessel in an animal or human that carries blood toward the heart

Back 4

veins

Front 5

a blood vessel that carries blood away from the heart

Back 5

arteries

Front 6

microscopic, thin-walled blood vessels that link arterioles and venules; function to supply oxygen and nutrients to cells and to carry away meabolic wastes

Back 6

capillaries

Front 7

a small bood vessel that carries blook from an artery to a capillary network

Back 7

arterioles

Front 8

a small blood bessel that carries blood from capillaries to a vein

Back 8

venules

Front 9

a chamber of the fheart that receives blood from veins

Back 9

atria; artrium

Front 10

1)either of the chamvers of the heart that receives blood from an atrium and pumps it into an artery;
2)a small cavity in the brain filled with cerebrospinal fluid

Back 10

ventricles

Front 11

the amount of force that blood exerts upon the walls of the blood vessels

Back 11

blood pressure

Front 12

a type of allergy in which the bronchial tubes constrict, making breathing difficult

Back 12

bronchial asthma

Front 13

the branches into which a bronchus divides as it enters a lung

Back 13

bronchial tubes

Front 14

the branches of the respiratory passageway into which the trachea divides; sing, bronchus

Back 14

bronchi

Front 15

the smallest branches of a bronchus wihtin a lung;terminate in alveoli

Back 15

bronchioles

Front 16

a system of specialized heart cells that generate electircal impulses and distribute them to all parts of the heart, enabling the heart to beat properly

Back 16

cardiac conduction system

Front 17

the buildup of fatty and fibrous tissue in the liver, often caused by prolonged alcoholism

Back 17

cirrhosis

Front 18

either of the two arteries which supply vlood to the heart muscle

Back 18

coronary arteries

Front 19

a type of heart surgery in which a grafted blood vessel is used to supply the heart muscles with blood, bypassing blocked coronary arteries

Back 19

coronary artery bypass surgery

Front 20

in biology, the muscle that separates the thoracic and abdominal cavities in mammals and man

Back 20

diaphragm

Front 21

a type of heart failure caused by a blockage of blood flow to the heart muscles

Back 21

heart attack

Front 22

special structures of the heart that prevent blood from flowing in the wrong direction

Back 22

heart valves

Front 23

a complex machine located outside the body that can take over the function of theheart and lungs for a short time, allowing the heart to be stopped by suitable drusgs and operated upon

Back 23

heart-lung machine

Front 24

a special iron-containing blood protein, found om red blood cells, that transports oxygen throughout the body and gives blood its read color

Back 24

hemoglobin

Front 25

the striated muscles between the ribs that expand the rib cage to aid in breathing

Back 25

intercostal muscles

Front 26

a tough white sac lined with a membrane that secretes a lubricating fluid; helps support and protect the heart an allows the heart to move easily within the chest as it pumps

Back 26

pericardium

Front 27

the liquid part of blood

Back 27

plasma

Front 28

the rhythmic change of pressure in the arteries that results from the pumping action of the heart; causes the artery walls to bulge outward and return to normal in time with the heartbeat

Back 28

pulse

Front 29

an "identification tag" present on the red blood cells of people who are Rh positive

Back 29

Rh factor

Front 30

1) the thick vertical wall of the heart that divides the left atrium and ventricle from the right atrium and ventricle
2) any of the internal membranes that separate the body segments of an earthworm

Back 30

septum

Front 31

a large, glandular organ located in the uppper left region of the abdomen that stores surplus red blood cells and functions as an organ of the lymphatic system

Back 31

spleen

Front 32

the movement of blood from the heart to all parts of the body except the lungs

Back 32

systemic circulation

Front 33

the movement of blood between the heart and the lungs

Back 33

pulmonary circulation

Front 34

the movement of blood from the digestive organs to the liver during systemic circulation

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portal circulation

Front 35

the movement of blood from the body organs through the kidneys during systemic circulation

Back 35

renal circulation

Front 36

the phase of the cardiac cycle during which the atria or ventricles are contractin and pumping blood

Back 36

systole

Front 37

the phase of the cardiac cycle during which the atria or ventricles are relaxing, and filling with blood

Back 37

diastole

Front 38

the amount of air moved into and our of the lungs in any one breath during quiet, normal breathing; about 30 cubic inches or 1/2 liter

Back 38

tidal volume

Front 39

the maximum volume of air that can be exhaled after one takes the deepest breath possible, about 280 cubic inches (4.6 liters) in adults

Back 39

vital capacity

Front 40

a pair of tissue folds within the larynx that create vocal sounds when they vibrate; also called vocal folds

Back 40

vocal cords