B3.2 Transport (animals)

Which blood vessel returns blood to the heart?

• arteries

• veins

• capillaries

• coronary arteries

Which is NOT an adaptation of capillaries for exchange of materials?

• large surface area

• thin walls

• elastic fibers in walls

• fenestrations

Which blood vessel has the thickest wall?

• veins

• artery

• capillary

• tunica externa

What is one things that veins have that arteries don't?

• many elastic fibers in walls

• corrugated inner surface

• thick walls

• valves preventing backflow

Is the blood vessel on the left an artery or a vein?

• artery

• vein

Blood vessels that supply oxygenated blood to the heart are called

• hypertension

• coronary arteries

• capillaries

• coronary veins

The study of the nature and spread of diseases in the human population is referred to as

• cardiology

• epidemiology

• oncology

• pulmonology

If a patient has narrowed coronary arteries due to plaque build up, they should be diagnosed with

• a heart attack

• leukemia

• lung cancer

• coronary heart disease

If a blood clot blocks the flow of blood to the heart and therefore causes tissue death due to lack of oxygen, scientists and medical professionals call this heart attack a

• myocardial infection

• myocardial infarction

• myocardial implication

• myocardial impaction

The following is NOT an identified risk factor for coronary heart disease:

• hypertension

• old age

• low salt intake

• a sedentary lifestyle