Anatomy and Physiology II (APII) Exam 3 Practice Test
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About this Exam
Prepare with the Anatomy and Physiology II (APII) Exam 3 Practice Test practice quiz. This question bank includes 10 questions covering cells, bronchus, blood, function, and anatomy. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.
Sample Questions
Question
1
What is the disadvantage of the right bronchus being larger in diameter and positioned at a steeper angle than the left bronchus?
Explanation:
The key idea is that airway anatomy directs where aspirated material tends to go. The right main bronchus is wider and more vertical (it travels from the trachea at a steeper angle) than the left. Because of this alignment and size, objects entering the trachea are more likely to slip into the right bronchus and lodge there. That predisposition—foreign bodies or secretions entering and getting stuck in the right side—is the disadvantage described. The left bronchus, being narrower and more horizontal, is less likely to receive aspirated material, so the issue described doesn’t apply there. Other statements don’t reflect this anatomical tendency toward the right side.
Question
2
Memory T cells are best described as?
Explanation:
Memory T cells are long-lived T lymphocytes that persist after an initial encounter and are primed to respond quickly if the same antigen is encountered again. They come from activated naive T cells and, upon re-exposure, require less stimulation to expand and to produce effector functions, leading to a faster, stronger response than during the first exposure. This is why they’re best described as responding to a previously encountered antigen. They don’t make antibodies (that’s the role of B cells/plasma cells), they don’t primarily present antigen to B cells (presentation is done by antigen-presenting cells like dendritic cells, macrophages, and sometimes B cells), and they don’t secrete histamine (that’s released by mast cells and basophils in allergic responses).
Question
3
Which of the following is NOT a segment of the colon?
Explanation:
The main idea here is knowing which parts belong to the colon. The colon has four main segments: ascending, transverse, descending, and sigmoid. The cecum sits at the very start of the large intestine as a pouch that receives material from the ileum through the ileocecal valve. It is not a segment of the colon itself. So, the cecum is the part that is not a colon segment, while the ascending, transverse, and sigmoid are actual parts of the colon.
Question
4
Oxygen-rich blood from the lungs enters the heart via which vessels?
Explanation:
Oxygen-rich blood from the lungs returns to the heart through the pulmonary veins, delivering it to the left atrium. This vessel set is unique because, in the pulmonary circuit, veins carry oxygenated blood back to the heart, unlike most systemic veins. From the left atrium, blood moves to the left ventricle and then into the aorta to nourish the body. In contrast, the aorta carries oxygenated blood away from the heart to the body, the superior vena cava brings deoxygenated blood from the upper body to the right atrium, and the pulmonary arteries carry deoxygenated blood from the right ventricle to the lungs.
Question
5
What is the structure and function of the mesenteries?
Explanation:
Double sheets of peritoneal membrane that suspend the intestines and provide routes for blood vessels, nerves, and lymphatics. The mesentery consists of two layers of peritoneum with a connective-tissue core that often contains fat, and it anchors the gut to the posterior abdominal wall while enabling the gut to move during digestion. This arrangement stabilizes the positions of the attached organs yet allows flexible movement, and it supplies the gut with its blood supply, nerves, and lymphatic drainage via the vessels that run through the mesentery. It’s not a single-layer lining, not a network of nerves, and not a muscular sling, which is why the double-layer, conduit-rich description best fits its structure and function.
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Anatomy and Physiology II (APII) Exam 3 Practice Test
This practice set contains 10 questions from the matching question bank and focuses on cells, bronchus, blood, function, and anatomy. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.
This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.
Frequently Asked Questions
This quiz contains a total of 10 practice questions carefully selected to test your knowledge on this subject.
Yes, you will have exactly 0 minutes to complete the exam. A countdown timer will be visible once you start.
Yes, you can retake this practice test as many times as you need. The questions and options may be randomized on subsequent attempts to ensure comprehensive learning.
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