Cardiovascular and Muscular System Concepts

A liquid medication is available in a concentration of 250 mg/5 mL.  How many mg are in 1 mL?

• 25 mg

• 50 mg

• 20 mg

• 55 mg

This person is in the  __________ position

• Supine

• Prone

• Anatomical

• Fowler's

This person is in the __________ position

• Supine

• Prone

• Anatomical

• Fowler's

What causes muscle soreness after exercise?

• muscle hypertrophy

• excess oxygen and decreased lactic acid

• muscle atrophy

• decreased oxygen and excess lactic acid

What medical term combining form relates to muscles?

• tend/o

• fasci/o

• my/o

• cardi/o

What is the PRIMARY function of the cardiovascular system in maintaining homeostasis?

• Storing excess nutrients

• Exchange of gases, nutrients, and waste

• Maintaining posture

• Perception of pain

Why do capillaries, despite their small size, play a crucial role in cellular survival?

• They enable direct exchange between blood and body tissues

• They prevent blood from flowing backwards

• They allow for the fastest blood flow

• They contain the most muscle

Why does blood in the pulmonary arteries differ from blood in all other arteries in the human body?

• It is under less pressure

• It contains more nutrients

• It flows backwards

• It carries deoxygenated blood.

What is the "lub" sound of the heartbeat?

• Closing of the aortic and pulmonary valves

• Opening of all heart valves

• Closing of the tricuspid and mitral valves

• Blood rushing through the arteries

You observe that a patient's finger tips turn blue during exercise

• Excess oxygen in the blood

• Poor oxygen circulation

• Normal exercise response

• Low blood pressure