1|Page
WGU - D313 - Anatomy & Physiology 2 Practice Test
Exam 2025/2026 ACTUAL COMPLETE REAL VERIFIED
EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+||
NEWEST EXAM!!!
Which heart sound does the closing of the Bicuspid valve
correspond to? - Answer-Lub/S1
Which part of the cardiac cycle is represented by the QRS
complex? - Answer-Ventricular Systole
What is the difference between the maximum and resting
cardiac output (CO) called? - Answer-Cardiac Reserve
What is the normal resting heart rate (HR) of an adult? -
Answer-60-110 bpm
What sound is produced by the closing of the mitral and
tricuspid valve? - Answer-First Heart Sound
Which blood cells lack granules? - Answer-Monocytes and
lymphocytes
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Which blood component contains hemoglobin? - Answer-
Erythrocyte
Which cell contains the highest concentrations of iron? -
Answer-Erythrocyte
Which element contributes to blood clotting? - Answer-
Prothrombin protein
What is an elastic, flexible cartilage in the larynx? -
Answer-Epiglottic cartilage
Which structure is not a part of the throat? - Answer-
Larynx
Which structure contains lubricating fluid that helps the
heart to expand and contract? - Answer-Pericardial Cavity
Which structure protects the heart? - Answer-Pericardium
Which artery gives rise to the right ulnar artery? - Answer-
Right Brachial Artery
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Which artery becomes the femoral artery one it leaves the
body cavity? - Answer-External Iliac Artery
Which structure maintains equal air pressure in the lung? -
Answer-Alveolar pores
Which cell type removes debris and pathogens from the
alveolar wall? - Answer-Alveolar macrophages
What leads to carbominogemoglobin formation? - Answer-
CO2 + Hb
What is the role of the diaphragm during normal
breathing? - Answer-During inhalation it contracts and
flattens
According to Boyle's law, what is the relation between
pressure and volume? - Answer-When volume increases,
pressure decreases at a constant temperature
, 4|Page
What is the function of the aortic body? - Answer-It
monitors the partial pressure of carbon dioxide, oxygen,
and pH in the blood
What is the function of arteries? - Answer-They carry
blood away from the heart
How do temperature and pH affect hemoglobin oxygen
saturation? - Answer-Higher temperature and lower pH
promote the dissociation of hemoglobin and oxygen
Where does intrinsic factor production occur? - Answer-
Parietal cells
Which structure stores feces prior to defecation? - Answer-
Rectum
Which structure stores and concentrates bile? - Answer-
Gallbladder
What is the order of the parts of the small intestine, from
shortest to longest? - Answer-Duodenum, Jejunum, Ileum
WGU - D313 - Anatomy & Physiology 2 Practice Test
Exam 2025/2026 ACTUAL COMPLETE REAL VERIFIED
EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+||
NEWEST EXAM!!!
Which heart sound does the closing of the Bicuspid valve
correspond to? - Answer-Lub/S1
Which part of the cardiac cycle is represented by the QRS
complex? - Answer-Ventricular Systole
What is the difference between the maximum and resting
cardiac output (CO) called? - Answer-Cardiac Reserve
What is the normal resting heart rate (HR) of an adult? -
Answer-60-110 bpm
What sound is produced by the closing of the mitral and
tricuspid valve? - Answer-First Heart Sound
Which blood cells lack granules? - Answer-Monocytes and
lymphocytes
,2|Page
Which blood component contains hemoglobin? - Answer-
Erythrocyte
Which cell contains the highest concentrations of iron? -
Answer-Erythrocyte
Which element contributes to blood clotting? - Answer-
Prothrombin protein
What is an elastic, flexible cartilage in the larynx? -
Answer-Epiglottic cartilage
Which structure is not a part of the throat? - Answer-
Larynx
Which structure contains lubricating fluid that helps the
heart to expand and contract? - Answer-Pericardial Cavity
Which structure protects the heart? - Answer-Pericardium
Which artery gives rise to the right ulnar artery? - Answer-
Right Brachial Artery
,3|Page
Which artery becomes the femoral artery one it leaves the
body cavity? - Answer-External Iliac Artery
Which structure maintains equal air pressure in the lung? -
Answer-Alveolar pores
Which cell type removes debris and pathogens from the
alveolar wall? - Answer-Alveolar macrophages
What leads to carbominogemoglobin formation? - Answer-
CO2 + Hb
What is the role of the diaphragm during normal
breathing? - Answer-During inhalation it contracts and
flattens
According to Boyle's law, what is the relation between
pressure and volume? - Answer-When volume increases,
pressure decreases at a constant temperature
, 4|Page
What is the function of the aortic body? - Answer-It
monitors the partial pressure of carbon dioxide, oxygen,
and pH in the blood
What is the function of arteries? - Answer-They carry
blood away from the heart
How do temperature and pH affect hemoglobin oxygen
saturation? - Answer-Higher temperature and lower pH
promote the dissociation of hemoglobin and oxygen
Where does intrinsic factor production occur? - Answer-
Parietal cells
Which structure stores feces prior to defecation? - Answer-
Rectum
Which structure stores and concentrates bile? - Answer-
Gallbladder
What is the order of the parts of the small intestine, from
shortest to longest? - Answer-Duodenum, Jejunum, Ileum
