Lungs And Heart And Stuff Flashcards
Lymphatic system
Lymph, lymph nodes, and lymph vessels
Circulatory system
Collectively made up of the cardiovascular system and lymphatic system
Pericardium
A tough saclike membrane surrounding the heart
AV valves
Separates each atrium from vent rival below it
What are the two AV valves
Tricuspid valve(right) and mitral valve(left)
SA node
A group of specialized heart muscle cells in the right atrium
Why is the SA node also called the pacemaker
It regulates the rate of contraction of the entire heart
Systole
Phase one of heartbeat occurs when the ventricles contract. Closes AV valves and opening SL valves to pump blood into the major vessels
Diastole
Phase two of heartbeat occurs when the ventricles relax
Arteries
Large muscular vessels that carry blood away from the heart
Systolic pressure
The pressure of the blood when the ventricles contract
Diastolic pressure
The pressure of the blood when the ventricles relax
Hypertension
High blood pressure
Vein
Large blood vessel that carries blood to the heart
Pulmonary circulation
In which the blood travels between the heart and lungs
Systemic circulation
In which the blood travels between the heart and the Body
Coronary circulation
Type of systemic circulation in which blood is supplied to the heart itself
Atherosclerosis
A disease characterized by the buildup of fatty materials on the interior walls of the coronary artery
Renal circulation
Supplies blood to kidneys
Lymph
Excess fluid in the tissues
Lymphocytes
White blood cells that are specialized to fight disease
Erythrocytes
Red blood cells
Hemoglobin
Protein that transfers oxygen and carbon dioxide
Leukocytes
White blood cells
