WGU D313 ANATOMY & PHYSIOLOGY EXAM
QUESTIONS AND CORRECT ANSWERS
TESTED AND APPROVED NEWLY UPDATED
2025/2026
What is the normal resting heart rate (HR) of an adult?
60-110 bpm
What sound is produced by the closing of the mitral and tricuspid valve?
First Heart Sound
Which blood cells lack granules?
Monocytes and lymphocytes
Which blood component contains hemoglobin?
Erythrocyte
Page 1 of 108
,Which cell contains the highest concentrations of iron?
Erythrocyte
Which element contributes to blood clotting?
Prothrombin protein
What is an elastic, flexible cartilage in the larynx?
Epiglottic cartilage
Which structure is not a part of the throat?
Larynx
Which structure maintains equal air pressure in the lung?
Alveolar pores
Which structure contains lubricating fluid that helps the heart to expand and
contract?
Page 2 of 108
,Pericardial Cavity
Which structure protects the heart?
Pericardium
Which artery gives rise to the right ulnar artery?
Right Brachial Artery
Which artery becomes the femoral artery one it leaves the body cavity?
External Iliac Artery
Which heart sound does the closing of the Bicuspid valve correspond to?
Lub/S1
Which part of the cardiac cycle is represented by the QRS complex?
Ventricular Systole
Page 3 of 108
, What is the difference between the maximum and resting cardiac output (CO)
called?
Cardiac Reserve
Which cell type removes debris and pathogens from the alveolar wall?
Alveolar macrophages
What leads to carbominogemoglobin formation?
CO2 + Hb
What is the role of the diaphragm during normal breathing?
During inhalation it contracts and flattens
According to Boyle's law, what is the relation between pressure and volume?
Page 4 of 108
QUESTIONS AND CORRECT ANSWERS
TESTED AND APPROVED NEWLY UPDATED
2025/2026
What is the normal resting heart rate (HR) of an adult?
60-110 bpm
What sound is produced by the closing of the mitral and tricuspid valve?
First Heart Sound
Which blood cells lack granules?
Monocytes and lymphocytes
Which blood component contains hemoglobin?
Erythrocyte
Page 1 of 108
,Which cell contains the highest concentrations of iron?
Erythrocyte
Which element contributes to blood clotting?
Prothrombin protein
What is an elastic, flexible cartilage in the larynx?
Epiglottic cartilage
Which structure is not a part of the throat?
Larynx
Which structure maintains equal air pressure in the lung?
Alveolar pores
Which structure contains lubricating fluid that helps the heart to expand and
contract?
Page 2 of 108
,Pericardial Cavity
Which structure protects the heart?
Pericardium
Which artery gives rise to the right ulnar artery?
Right Brachial Artery
Which artery becomes the femoral artery one it leaves the body cavity?
External Iliac Artery
Which heart sound does the closing of the Bicuspid valve correspond to?
Lub/S1
Which part of the cardiac cycle is represented by the QRS complex?
Ventricular Systole
Page 3 of 108
, What is the difference between the maximum and resting cardiac output (CO)
called?
Cardiac Reserve
Which cell type removes debris and pathogens from the alveolar wall?
Alveolar macrophages
What leads to carbominogemoglobin formation?
CO2 + Hb
What is the role of the diaphragm during normal breathing?
During inhalation it contracts and flattens
According to Boyle's law, what is the relation between pressure and volume?
Page 4 of 108
