A+P: Chp. 13: Vocab

Pulmonary circulation

circulation of the heart and lungs

Systemic circulation

circulation of the heart and the rest of the body

Coronary circulation

circulation through the heart

Pericardium

protective sac around the heart

Epicardium

prevents friction

Endocardium

elastic fibers used to maintain strength

Myocardium

pumps blood out of heart

Papillary muscles

mounds of heart tissue where strings attach

Universal donor

O

Universal recipient

AB

Hypertension

high blood pressure; silent killer

Chordae tendineae

string like structure that keeps cusps in place

Lumen

opening of a vessel: hollow channel

MVP

mitral valve prolapse - When blood regurgitated in the heart valve

Heart attack

myocardial infarction

Atherosclerosis

bad diet with lots of fat or genetics

Coronary sinus

large vessel on the posterior surface of the heart into which cardiac veins drain

Viscosity

ability of blood to flow

Diastolic pressure

blood pressure reached when in the resting phase

Systolic pressure

blood pressure reached when in the working phase

Purkinje fibers

assists with the sending of impulses through the apex of the heart

Vasoconstriction

vessels get smaller, blood pressure increases

Vasodilation

vessels get bigger, blood pressure decreases

Plaque

fat in the arteries