1.
atrium: upper chamber that receives blood; pumps to ventricle
2.
back flow against AV valves creates the...: "lub" sound
3.
back flow against the SL valves creates the...: "dup" sound
4.
bicuspid (mitral) valve location: left side
5.
blood pressure: the force created by the heart pumping blood through vessels
6.
capillaries are made of...: epithelial cells
7.
carry blood away from the heart: arteries
8.
closed circulatory system: a circulatory system where blood is contained within the heart or blood vessels
9.
coronary circulation: systemic circulation that supplies blood to the heart itself
10.
diameter of arteries are controlled by...: hormones
11.
function of semilunar valves: prevent back flow of blood into ventricles
12.
heart murmur: a defect in the valves of the heart allowing some back flow of blood
13.
hypertension: high blood pressure
14.
lowest pressured vessel: vein
15.
myocardium: thick layer of muscle in heart
16.
only artery that carries oxygen poor blood: pulmonary artery
17.
only liquid tissue: blood
18.
pericardium: protective sac of tissue that surrounds the heart
19.
plasma: sticky, straw- colored fluid (90% water), includes metabolites, nutrients, gases, hormones, wastes, salts, and proteins
20.
pressure and velocity are highest in which vessel?: aorta and arteries
21.
pulse: rhythmic stretching of arteries
22.
relaxation of the heart: diastole (diastolic pressure)
23.
septum: separates the heart vertically into 2 sides
24.
site of gas exchange in lungs: alveoli
25.
smallest blood vessel
vessel all diffusion takes place
slowest moving blood: capillary
26.
systemic circulation: carries blood to the heart and rest of the body
27.
the central organ of the cardiovascular system: the heart
28.
the pulmonary circuit: carries blood between the heart and gas-exchange tissues
29.
tricuspid valve location: right side of heart
30.
valves: flaps of tissue that control the flow of fluid
31.
ventricle: lower chamber that receives blood from atrium; pumps blood out of heart
32.
ventricle contraction increases pressure: systolic pressure
33.
vessel with greatest cross section (slowest): capillaries
34.
walls of alveoli: one cell thick