Quiz 5

73

If end diastolic volume is 150 mL and end systolic volume is 40 mL, what is the ejection fraction (%)?

artery, arterioles, capillaries, venules, vein

Order the following blood vessels in their correct sequence based on blood flow from the left ventricle to and through a peripheral tissue. arterioles vein capillaries venules artery

True

Approximately 45% of our blood volume contains blood cells, and this measure is called hematocrit. True False

fluid, birth, 20, 40, 12

Foetal lungs are filled with [a]; most is forced out during [b]. From birth to adult maturity, lung mass increases [c]-fold and breathing frequency decreases from [d] breaths/min to [e] breaths/min.

tricuspid, mitral

The [a] valve seperates the right atrium from the right ventricle, and the [b] valve seperates the left atrium from the left ventricle.

False

The foetal lungs receive air from the umbilical cord. True False

4

The heart has ..... chambers.

false

The left ventricle pumps blood through the pulmonary arteries to the lungs. True False

haemoglobin

The molecule on the red blood cell that binds oxygen is called ........... a. myoglobin b. haemoglobin c. platelets d. surfactant

residual volume

The volume of air left in the lungs after a full exhalation is referred to as ............... a. vital capacity b. tidal volume c. residual volume d. expiratory reserve volume