circulatory system

vein

blood vessel that carries blood back to the heart

endocardium

smooth layer of cells lining the inside of the heart

pulmonary valve

valve between the right ventricle and pulmonary artery

atrium

upper chamber of the heart

aortic valve

valve between the left ventricle and the aorta

myocardium

muscular middle layer of the heart

erythrocyte

blood cell that carried oxygen and carbon dioxide

diastole

breif period of rest in the heart

plasma

fluid portion of blood

capillary

blood vessel that connects arterioles with venules

mitra valve

valve between the left atrium and left ventricle

leukocyte

blood cells that help fight infections

thrombocyte

blood cell required for clotting process/platelet

artery

blood vessel that carries blood away from the heart

systole

period of ventricular contraction in the heart

septum

muscular wall that separates the heart into a right and left side

hemoglobin

complex proteins on red blood cells

blood

tissue that flows through the circulatory system

ventricle

lower chamber of the heart

diastole

a brief period of rest. blood from body enters the right atrium and blood from lungs enter left atrium

parts of the conductive pathway for electrical impulses in the heart.

Sinoatrial node, atrioventricular node, bundle of his, right & left bundle branches, ventricles.

What is arrhythmia

abnormal heart beat

how is arrhythmia diagnosed

Cardiac monitors and electrocardiograms

blood vessels that carry blood away from the heart

arteries

blood vessels that carry blood back to the heart

veins

blood vessels that connect arterioles with venules

capillaries

largest artery in the body

aorta

two largest veins in the body

superior and inferior vena cava

vessels that allow oxygen and nutrients to pass through to cells

capillaries

smallest branches of arteries

arterioles

smallest branches of veins

venules

vessels that contain valves to prevent backflow of blood

veins

most muscular and elastic blood vessels

arteries

6 substances transported by the blood

Oxygen, carbon dioxide, nutrients, metabolic waste, heat, hormones

6 substances dissolved or suspended in plasma

glucose, electrolytes, hormones, dissolved gasses, plasma proteins, waste products

erythrocytes

red blood cells, 4-5 million, carry ocygen from the lungs to tissues, transport carbon dioxide waste back to the lungs

leukocytes

white blood cells, 3500-12500, defend body against foreign invaders

thrombocytes

platelets, 150000-450000, initiate blood clotting to stop bleeding

what gives blood its characteristic red color?

hemoglobin

what is hemoglobin?

a vital iron rich protein in red blood cells that acts as the body's oxygen transporter

phagocytize bacteria

monocytes, neutrophil

provide immunity for the body by developing antibodies

lymphocytes

defend the body from allergic reactions

eosinophils

produce histamine and heparin

basophils

saclike formation in the wall of an artery (ballooning)

aneurysm

inadequate number of red blood cells, hemoglobin, or both

anemia

dilated swollen veins

varicose veins

a fatty deposit on the walls of arteries

atherosclerosis

disease characterized by failure of the blood to clot

hemophilia

high blood pressure

hypertension

inflammation of the veins with formation of a clot

phlebitis

blockage in the coronary arteries of the heart

atherosclerosis

foreign substamce circulating in the blood stream

embolus

malignant disease with large numbers of immature white blood cells

leukemia

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