Circulatory System Test Review

The ___ is the layer of tissue that surrounds the heart.

• Epidermis

• dermis

• pericardium

• myocardium

This is the only valve with 2 cusps in the heart.

• tricuspid

• mitral

• aortic

• pulmonic

The specialized bundle of cells that controls the rhythm of the heart's contractions.

• pacer

• functional syncytium

• endocardium

• pacemaker

These are blood vessels that carry blood back to the heart.

• veins

• arteries

• arterioles

• capillaries

If we have a problem with our electrical impulses going on in our heart, a doctor can give us this type of test to determine the problem.

• MRI

• CAT scan

• EKG

• ECG

The myocardial cells must have a constant supply of this in order to keep functioning at a constant rate.

• carbon dioxide

• oxygen

• nitrogen

• carbon monoxide

Tags

NGSS.HS-LS1-7

Arterial disease where plaque builds up on walls of the arteries and causes constriction.

• myocardial infarction

• hypertension

• atherosclerosis

• gingivitis

The upper chambers of the heart are called the _____.

• ventricles

• atria

• valves

• cusps

This causes the first number of your blood pressure and when the atria and ventricles contract.

• diastole

• hyperstole pressure

• systole

• asystole

This is the contracting of blood vessels that decreases the diameter of the vessel.

• vasoconstriction

• vasodilation

• hyperconstriction

• hypodilation

Tags

NGSS.HS-LS1-3