Circulatoey System Flashcards
Endocardium
Smooth layer of cells that lines inside of blood vessels
Myocardium
Muscular middle layer of tissue around the heart
Pericardium
Double layered membrane covers outside of the heart
Septum
Muscular wall-> separates heart into a right and left side
Right atrium
Gets blood as it returns from the body cells
Right ventricle
Gets blood from right atrium and pumps blood into the pulmonary artery
Pulmonary artery
Carries blood to lungs from oxygen
Left atrium
Receives oxygenates blood from lungs
Left ventricle
Gets blood from left atrium and pumps blood into aorta for transport to the body cells
Tricuspid valve
Closes when right ventricle contracts, allowing blood to flow to lungs, preventing blood from flowing back into right atrium
Pulmonary valve
Is between right ventricle and pulmonary artery
Mitral valve
Between left atrium and left ventricle. Prevent blood from flowing back into the left atrium
Aortic valve
Between left ventricle and aorta. Largest. Prevents blood from going back to left ventricle
Diastole
Period of rest flowing by systole
Systole
Period of ventricular contraction