Chapter 7:8 Circulatory System
Atrium
Upper chamber of the heart
Thrombocyte
Blood cell required for the clotting process
Erythrocyte
Blood cell that carries oxygen and carbon dioxide
Leukocyte
Blood cell that helps fight infection
Describe what happens in the heart during diastole
It has a brief period of rest
Malignant disease with large number of immature white blood cells
Leukemia
Ventricle
Lower chamber of the heart
Septum
Muscular wall that separates the heart into a right and left side
Blockage in the coronary arteries of the heart
Myocardial infarction
Three main types of blood cells
Red blood cells, white blood cells, platelets (thrombocytes)
List the parts of the conductive pathway for electrical impulses in the heart
SA node- AV node- Bundle of HIS- Right &a left bundle branch- purkinje fibers
Endocardium
Smooth layer of cells lining the inside of the heart
Two largest veins in the body
Superior and inferior vena cava
Mitral valve
Valve between the left atrium and left ventricle
Aortic valve
Valve between the left ventricle and aorta
Pulmonary valve
Valve between the right ventricle and pulmonary artery
Dilated swollen veins
Varicose
Vessels that contain valves to prevent back flow of blood
Veins
Smallest branches of veins
Venules
Myocardium
Muscular middle layer of the heart
What gives blood its characteristic red color?
Hemoglobin
Hemoglobin
Complex protein in red blood cells
Inadequate number of red blood cells, hemoglobin, or both
Anemia
Saclike formation in the wall of an artery
Aneurism
Largest artery in the body
Aorta
What is arrhythmia? How is it diagnosed?
Arrhythmia meansirregular heart beat/rate. It's diagnosed with EKG. (electrocardiogram)
Most muscular and elastic blood vessels
Arteries
Smallest branches of arteries
Arterioles
Vessels that allow oxygen and nutrients to pass through to cells
Arterioles and venules
A fatty deposit on the walls of arteries
Atherosclerosis
Arteries
Blood vessel that carries blood away from the heart
Veins
Blood vessel that carries blood back to the heart
Capillaries
Blood vessel that connects arterioles with venules
Diastole
Brief period of rest in the heart
Pericardium
Double layered membrane on the outside of the heart
Foreign substance circulating in the bloodstream
Embolus
Blood proteins
Fibrinogen, prothrombin, nutrients, mineral salts
Plasma
Fluid portion of blood
What is hemoglobin? What is it's function?
Hemoglobin is a complex protein on RBC. It's job is to transport O2 and CO2 through the body.
Disease characterized by failure of the blood to clot
Hemophilia
List six substances that are dissolved or suspended in plasma
Hormones, enzymes, electrolytes, waste products, nutrients, CO2 & O2, blood cells
High blood pressure
Hypertension
List six substances transported by the blood
Oxygen, carbon, nutrients, waste products, hormones, heat
Systole
Period if ventricular contraction in the heart
Describe what happens in the heart during systole. State where each ventricle sends the blood
Period of ventricular contraction; goes to the right ventricle to lungs, back to the left ventricle, then to the body
Inflammation of the veins with formation of a clot
Phlebitis
