Blood and Heart Quiz

Which of the following is NOT true of plasma?

• it is 90% water

• nutrients from food are the most abundant component

• it helps distribute body heat

• carries over 100 dissolved substances

Which of the following is NOT paired correctly?

• mediastinum – middle cavity of the thorax where the heart is located

• pericardium – wall that divides the right and left sides of the heart

• myocardium – the heart muscle

• blood – carries various substances throughout the body

Which of the following statements about blood pressure is NOT correct?

• Blood pressure is controlled by the sinoatrial node

• 110/70 is considered to be a normal, healthy blood pressure

• Systolic pressure is pressure in the arteries during ventricular contraction

• The device used to measure blood pressure is a sphygmomanometer

Which of the following blood vessels is NOT paired correctly with its location?

• ulnar – lower arm

• renal – kidneys

• right coronary artery – heart

• brachial – thigh

Which of the following statements about blood flow is NOT correct?

• the pulmonary circuit includes the heart, lungs, and pulmonary arteries and veins

• deoxygenated blood returns to the heart in the pulmonary veins

• blood leaves the right ventricle, travels through the pulmonary arteries to the lungs

• the left ventricle pumps blood out the aorta to all parts of the body

The pointed apex of the heart is oriented toward the

• left hip

• right shoulder

• umbilical region

• right hip

Which of the following is NOT associated with ventricular systole?

• atrioventricular valves close

• heart is relaxed

• blood rushes out of the ventricles

• semilunar valves open

The path of blood flow within systemic circulation is

• arterioles, arteries, capillary beds, venules, veins

• veins, venules, capillary beds, arteries, arterioles

Which of the following statements about blood vessels is NOT true?

• arteries have two elastic layers

• capillary walls are only one cell thick

• the smooth muscle layer is thicker in arteries than in veins

• veins have a smaller lumen than arteries

The conducting passageways of the respiratory system include all of the following structures EXCEPT

• pharynx

• larynx

• trachea

• esophagus