Heart

Which structure is made of connective tissue fibers to prevent blood vessels from bursting?

• Tunica externa

• Lumen

• Tunica Media

• Tunica Interna

A partition called _____ divides the heart into left and right sides.

• apex

• septum

• endocardium

• myocardium

What is another name for cardiac muscle or heart muscle?

• endocardium

• myocardium

• visceral pericardium

• parietal pericardium

If your blood pressure is 125/95, what does the 95 stand for?

• diastolic pressure

• cardiac pressure

• systolic pressure

• venous pressure

The _____ circulation allows for the detoxification of blood.

• systemic

• hepatic portal

• pulmonary

• coronary

Which circulation carries blood from the heart to the body and back?

• systemic circulation

• pulmonary circulation

• hepatic portal circulation

• coronary circulation

What causes the characterist "lub-dub" sounds of the heart?

• the systole of the atria and the systole of the ventricles

• the closing of the four sets of heart valves

• the diastole of the atria and the systole of the ventricles

• the systole and diastole of the heart muscle

What covers the interior of the heart and makes it smooth so blood clots don't form?

• parietal pericardium

• visceral pericardium

• endocardium

• myocardium

What type of blood vessel carries blood to the heart and acs as a blood reservoir?

• aortic

• veins

• arteries

• capillaries

What happens if blood viscosity is increased?

• blood pressure decreases

• blood pressure increases

• blood pressure is unchanged

• pulse is decreased

Tags

NGSS.HS-LS1-3