HESI A2 ANATOMY & PHYSIOLOGY EXAM QUESTIONS & ANSWERS 2026-2027 | … EXAM
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
HESI A2 Anatomy &
Physiology Exam Questions
& Answers 2026-2027 | 2025
Updated Edition
(Rationales)
Verified Answers Exam Ready With Rationales
49 QUESTIONS
DOCUMENT OVERVIEW
This updated edition provides 49 anatomy and physiology questions, each with its correct answer and
detailed rationale. It covers fundamental human physiology concepts, making it an ideal study tool for
students preparing for certification exams, reviewing course material, or reinforcing their understanding of
the subject.
CONTENTS
Cardiovascular System Q1–Q11
Cellular Biology & Histology Q12–Q20
Endocrine & Nervous Systems Q21–Q31
Skeletal System Q32–Q42
Integumentary System Q43–Q49
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 49
Patients with lower than normal thrombocytes, are at risk of ___
CORRECT ANSWER
extensive bleeding
RATIONALE
Thrombocytes, or platelets, are critical for hemostasis; a deficiency impairs clot formation, increasing the risk of
uncontrolled bleeding. This question assesses understanding of the role of platelets in the coagulation cascade.
Q2 QUESTION 2 OF 49
What are thrombocytes?
CORRECT ANSWER
They are part of the clotting process
RATIONALE
Thrombocytes, also known as platelets, are cell fragments crucial for hemostasis, initiating clot formation by
aggregating at injury sites and releasing factors that promote coagulation. This function directly addresses their
role in the clotting process.
Q3 QUESTION 3 OF 49
Pathway of blood through the circulatory system
CORRECT ANSWER
Right atrium, tricuspid valve, right ventricle, pulmonary valve, pulmonary artery, lungs, pulmonary vein, left
atrium, mitral valve, left ventricle, aortic valve, aorta, body tissues, vena cava, right atrium
RATIONALE
Blood flows from the body into the right atrium, through the tricuspid valve to the right ventricle, then via the
pulmonary valve to the pulmonary artery and lungs for oxygenation. Oxygenated blood returns via the pulmonary
vein to the left atrium, then through the mitral valve to the left ventricle, out the aortic valve into the aorta, supplying
the body before returning to the vena cava and right atrium.
Page 2
, Q4 QUESTION 4 OF 49
Which of the four chambers of the heart has the thickest muscular wall?
CORRECT ANSWER
left ventricle
RATIONALE
The left ventricle possesses the thickest muscular wall because it must generate the highest pressure to pump
oxygenated blood to the entire systemic circulation against significant resistance. This anatomical adaptation is
directly related to the principle of pressure generation and vascular resistance in the circulatory system.
Q5 QUESTION 5 OF 49
In the heart, what is the function of the mitral valve?
CORRECT ANSWER
Lets blood flow from the left atrium to the right ventricle
RATIONALE
The mitral valve, also known as the bicuspid valve, is a one-way valve that ensures unidirectional blood flow from the
left atrium to the left ventricle during diastole. This prevents regurgitation back into the atrium.
Q6 QUESTION 6 OF 49
What blood vessel returns blood from the lungs, back to the heart?
CORRECT ANSWER
pulmonary veins
RATIONALE
Pulmonary veins carry oxygenated blood from the lungs to the left atrium, bypassing the systemic circulation. This
unique anatomical pathway ensures efficient oxygen delivery to the body's tissues.
Q7 QUESTION 7 OF 49
What makes up the largest component of blood?
CORRECT ANSWER
plasma
Page 3
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
HESI A2 Anatomy &
Physiology Exam Questions
& Answers 2026-2027 | 2025
Updated Edition
(Rationales)
Verified Answers Exam Ready With Rationales
49 QUESTIONS
DOCUMENT OVERVIEW
This updated edition provides 49 anatomy and physiology questions, each with its correct answer and
detailed rationale. It covers fundamental human physiology concepts, making it an ideal study tool for
students preparing for certification exams, reviewing course material, or reinforcing their understanding of
the subject.
CONTENTS
Cardiovascular System Q1–Q11
Cellular Biology & Histology Q12–Q20
Endocrine & Nervous Systems Q21–Q31
Skeletal System Q32–Q42
Integumentary System Q43–Q49
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 49
Patients with lower than normal thrombocytes, are at risk of ___
CORRECT ANSWER
extensive bleeding
RATIONALE
Thrombocytes, or platelets, are critical for hemostasis; a deficiency impairs clot formation, increasing the risk of
uncontrolled bleeding. This question assesses understanding of the role of platelets in the coagulation cascade.
Q2 QUESTION 2 OF 49
What are thrombocytes?
CORRECT ANSWER
They are part of the clotting process
RATIONALE
Thrombocytes, also known as platelets, are cell fragments crucial for hemostasis, initiating clot formation by
aggregating at injury sites and releasing factors that promote coagulation. This function directly addresses their
role in the clotting process.
Q3 QUESTION 3 OF 49
Pathway of blood through the circulatory system
CORRECT ANSWER
Right atrium, tricuspid valve, right ventricle, pulmonary valve, pulmonary artery, lungs, pulmonary vein, left
atrium, mitral valve, left ventricle, aortic valve, aorta, body tissues, vena cava, right atrium
RATIONALE
Blood flows from the body into the right atrium, through the tricuspid valve to the right ventricle, then via the
pulmonary valve to the pulmonary artery and lungs for oxygenation. Oxygenated blood returns via the pulmonary
vein to the left atrium, then through the mitral valve to the left ventricle, out the aortic valve into the aorta, supplying
the body before returning to the vena cava and right atrium.
Page 2
, Q4 QUESTION 4 OF 49
Which of the four chambers of the heart has the thickest muscular wall?
CORRECT ANSWER
left ventricle
RATIONALE
The left ventricle possesses the thickest muscular wall because it must generate the highest pressure to pump
oxygenated blood to the entire systemic circulation against significant resistance. This anatomical adaptation is
directly related to the principle of pressure generation and vascular resistance in the circulatory system.
Q5 QUESTION 5 OF 49
In the heart, what is the function of the mitral valve?
CORRECT ANSWER
Lets blood flow from the left atrium to the right ventricle
RATIONALE
The mitral valve, also known as the bicuspid valve, is a one-way valve that ensures unidirectional blood flow from the
left atrium to the left ventricle during diastole. This prevents regurgitation back into the atrium.
Q6 QUESTION 6 OF 49
What blood vessel returns blood from the lungs, back to the heart?
CORRECT ANSWER
pulmonary veins
RATIONALE
Pulmonary veins carry oxygenated blood from the lungs to the left atrium, bypassing the systemic circulation. This
unique anatomical pathway ensures efficient oxygen delivery to the body's tissues.
Q7 QUESTION 7 OF 49
What makes up the largest component of blood?
CORRECT ANSWER
plasma
Page 3
