BIOL 252 Human Anatomy & Physiology II w/Lab | Module 4
Exam Review 70+ Questions & Answers Summary | Portage
Learning
This comprehensive review guide is designed to help you prepare for the BIOL 252 Module 4
Exam at Portage Learning. The guide is structured to reflect the format of the LockDown
Browser exams, featuring exam-style questions, detailed rationales, and concept checks based
on the official course material.
Exam Overview & Tips
Format: The Module 4 exam is a proctored, timed assessment delivered via LockDown
Browser. Expect a mix of multiple-choice, true/false, short answer, and identification questions
based on diagrams (e.g., identifying structures of the lymphatic system).
Key Topics: This module covers the Lymphatic System and Immunity. Your studies should focus
on:
Lymphatic System: Structure and function of lymph vessels, lymph nodes, spleen, thymus,
and tonsils; formation and circulation of lymph.
Innate (Non-specific) Immunity: First and second lines of defense, including physical
barriers, phagocytes (neutrophils, macrophages), natural killer cells, inflammation, fever, and
antimicrobial proteins.
Adaptive (Specific) Immunity: Humoral (B cell) and cell-mediated (T cell) responses; antigens
and antibodies; primary vs. secondary response; active vs. passive immunity.
Disorders: Hypersensitivity reactions, autoimmune diseases (e.g., rheumatoid arthritis,
lupus), immunodeficiency (e.g., HIV/AIDS), and lymphomas.
Laboratory Applications: Identification of lymphatic organs and tissues; interpretation of
white blood cell differentials in immune responses.
Portage Learning Exam Policies: No more than one module exam per 48 hours per course is
permitted. Remember that your course registration can be updated from BIOD 151/152 to BIOL
,251/252 within six months of your original registration date and before progressing beyond
Module 1.
---
Section 1: The Lymphatic System (Structure & Function)
1. What are the primary functions of the lymphatic system?
Answer: The lymphatic system has three main functions:
1. Fluid Balance: Returns excess interstitial fluid (now called lymph) to the bloodstream,
preventing edema.
2. Lipid Absorption: Absorbs dietary fats (as chyle) from the small intestine and transports them
to the venous circulation via lacteals in the villi.
3. Immunity: Produces, stores, and transports white blood cells (lymphocytes), defends against
pathogens, and removes cellular debris.
2. Which layer of the heart is also known as the visceral pericardium?
A) Epicardium
B) Myocardium
C) Endocardium
D) Fibrous pericardium
Answer: A – Epicardium
Rationale: The epicardium is the outermost layer of the heart wall and is continuous with the
visceral pericardium, which is part of the serous pericardium.
3. Which chamber of the heart receives deoxygenated blood from the superior and inferior
vena cava?
, A) Right atrium
B) Right ventricle
C) Left atrium
D) Left ventricle
Answer: A – Right atrium
Rationale: The right atrium receives deoxygenated blood from the systemic circulation via the
superior and inferior vena cava and the coronary sinus.
4. The bicuspid (mitral) valve is located between the:
A) Right atrium and right ventricle
B) Left atrium and left ventricle
C) Left ventricle and aorta
D) Right ventricle and pulmonary trunk
Answer: B – Left atrium and left ventricle
Rationale: The bicuspid (mitral) valve is the left atrioventricular valve, located between the left
atrium and left ventricle.
5. Which of the following structures prevents backflow of blood from the aorta into the left
ventricle?
A) Aortic semilunar valve
B) Pulmonary semilunar valve
C) Tricuspid valve
D) Mitral valve
Answer: A – Aortic semilunar valve
Exam Review 70+ Questions & Answers Summary | Portage
Learning
This comprehensive review guide is designed to help you prepare for the BIOL 252 Module 4
Exam at Portage Learning. The guide is structured to reflect the format of the LockDown
Browser exams, featuring exam-style questions, detailed rationales, and concept checks based
on the official course material.
Exam Overview & Tips
Format: The Module 4 exam is a proctored, timed assessment delivered via LockDown
Browser. Expect a mix of multiple-choice, true/false, short answer, and identification questions
based on diagrams (e.g., identifying structures of the lymphatic system).
Key Topics: This module covers the Lymphatic System and Immunity. Your studies should focus
on:
Lymphatic System: Structure and function of lymph vessels, lymph nodes, spleen, thymus,
and tonsils; formation and circulation of lymph.
Innate (Non-specific) Immunity: First and second lines of defense, including physical
barriers, phagocytes (neutrophils, macrophages), natural killer cells, inflammation, fever, and
antimicrobial proteins.
Adaptive (Specific) Immunity: Humoral (B cell) and cell-mediated (T cell) responses; antigens
and antibodies; primary vs. secondary response; active vs. passive immunity.
Disorders: Hypersensitivity reactions, autoimmune diseases (e.g., rheumatoid arthritis,
lupus), immunodeficiency (e.g., HIV/AIDS), and lymphomas.
Laboratory Applications: Identification of lymphatic organs and tissues; interpretation of
white blood cell differentials in immune responses.
Portage Learning Exam Policies: No more than one module exam per 48 hours per course is
permitted. Remember that your course registration can be updated from BIOD 151/152 to BIOL
,251/252 within six months of your original registration date and before progressing beyond
Module 1.
---
Section 1: The Lymphatic System (Structure & Function)
1. What are the primary functions of the lymphatic system?
Answer: The lymphatic system has three main functions:
1. Fluid Balance: Returns excess interstitial fluid (now called lymph) to the bloodstream,
preventing edema.
2. Lipid Absorption: Absorbs dietary fats (as chyle) from the small intestine and transports them
to the venous circulation via lacteals in the villi.
3. Immunity: Produces, stores, and transports white blood cells (lymphocytes), defends against
pathogens, and removes cellular debris.
2. Which layer of the heart is also known as the visceral pericardium?
A) Epicardium
B) Myocardium
C) Endocardium
D) Fibrous pericardium
Answer: A – Epicardium
Rationale: The epicardium is the outermost layer of the heart wall and is continuous with the
visceral pericardium, which is part of the serous pericardium.
3. Which chamber of the heart receives deoxygenated blood from the superior and inferior
vena cava?
, A) Right atrium
B) Right ventricle
C) Left atrium
D) Left ventricle
Answer: A – Right atrium
Rationale: The right atrium receives deoxygenated blood from the systemic circulation via the
superior and inferior vena cava and the coronary sinus.
4. The bicuspid (mitral) valve is located between the:
A) Right atrium and right ventricle
B) Left atrium and left ventricle
C) Left ventricle and aorta
D) Right ventricle and pulmonary trunk
Answer: B – Left atrium and left ventricle
Rationale: The bicuspid (mitral) valve is the left atrioventricular valve, located between the left
atrium and left ventricle.
5. Which of the following structures prevents backflow of blood from the aorta into the left
ventricle?
A) Aortic semilunar valve
B) Pulmonary semilunar valve
C) Tricuspid valve
D) Mitral valve
Answer: A – Aortic semilunar valve
