MIDTERM 1 part 2

travel along the left and right sides of the septum.

carry stimulation throughout the walls of the ventricles

carry blood away from the heart

vessels smaller than arteries that lead into the capillaries

the smallest vessels, through which exchanges take place between the blood and the tissues

small vessels that receive blood from the capillaries and drain into the veins

carry blood back to the heart

vascular system

All arteries, except the ______ (and the umbilical artery in the fetus), carry highly oxygenated blood.

All veins, except the ____ (and the umbilical vein in the fetus), carry blood low in oxygen.

measures the heart’s electrical activity as it functions.

placed on the body’s surface detect the electrical signals, which are then amplified and recorded as a tracing.

originates at the SA node

represents electrical change,

shows depolarization of the ventricles.

shows return, or repolarization, of the ventricles to their resting state.

if present, follows the T wave. It is of uncertain origin.

the force exerted by blood against the wall of a blood vessel

It falls as the blood travels away from the heart and is influenced by a variety of factors.

increases blood pressure in a vessel

decreases pressure

largest artery
receives blood from the left ventricle and all branches to all parts of the body

a change in electrical charge from the resting state in nerves or muscles

the large inferior vein that brings blood low in oxygen back to the right atrium (lower body)

the wave of increased pressure produced in the vessels each time the ventricle contracts

return of electrical charge

normal heart rhythm

the large superior vein that brings blood low in oxygen back to the right atrium (upper body)

a structure that keeps the fluid flowing in a forward direction

any disease of the heart muscle

surgical incision of atrium

above a ventricle

instrument for incising a valve

xray imaging of a vessel

sudden contraction of vessel

within an artery

pertaining to an arteriole

downward displacement of the aorta

pertaining to vein

incision of a vein to withdraw blood