Human Anatomy & Physiology II
Lymphatic System, Immunity & Respiratory
Physiology
60 Original Practice Questions, Detailed Rationales & Rapid Review
Targeted coverage: lymphatic fluid return, vessels and ducts, lymphoid organs, innate and adaptive
immunity, airway anatomy, ventilation, gas exchange, pleura, and acid-base physiology.
How to use this paper
Complete the questions without looking at the answers. Then use each rationale to diagnose weak concepts. A
study target of 80% or higher indicates solid working familiarity, not a guarantee of a course grade or examination
outcome.
Originality and scope
This is a newly authored, independent practice resource. It is not copied from Quizlet, a textbook, an instructor assessment, a course
exam, a test bank, or any official examination. It is not affiliated with a school or publisher.
Original educational practice material - not affiliated with Quizlet, a school, or an official examination Page 1
, Practice Questions with Answers & Rationales
1. A patient has fluid accumulating in tissue after lymphatic vessels are damaged. Which normal
lymphatic function is most directly impaired?
A. Returning excess interstitial fluid to the bloodstream
B. Producing erythrocytes in the marrow
C. Secreting surfactant into alveoli
D. Transporting oxygen in plasma
Correct answer: A
Rationale: Lymphatic vessels collect excess interstitial fluid and return it to the venous circulation. Damage can cause
lymphedema.
Original educational practice material - not affiliated with Quizlet, a school, or an official examination Page 2
, 2. Once interstitial fluid enters a lymphatic capillary, it is called:
A. Serum
B. Lymph
C. Cytosol
D. Plasma
Correct answer: B
Rationale: Interstitial fluid becomes lymph after it enters lymphatic capillaries.
Original educational practice material - not affiliated with Quizlet, a school, or an official examination Page 3
, 3. Which feature helps lymphatic capillaries take up excess tissue fluid?
A. Thick smooth-muscle walls
B. Overlapping endothelial cells that function as mini-valves
C. A continuous basement membrane with tight junctions
D. Ciliated cartilage rings
Correct answer: B
Rationale: Loosely overlapping endothelial cells form flap-like mini-valves that open when tissue pressure rises.
Original educational practice material - not affiliated with Quizlet, a school, or an official examination Page 4
Lymphatic System, Immunity & Respiratory
Physiology
60 Original Practice Questions, Detailed Rationales & Rapid Review
Targeted coverage: lymphatic fluid return, vessels and ducts, lymphoid organs, innate and adaptive
immunity, airway anatomy, ventilation, gas exchange, pleura, and acid-base physiology.
How to use this paper
Complete the questions without looking at the answers. Then use each rationale to diagnose weak concepts. A
study target of 80% or higher indicates solid working familiarity, not a guarantee of a course grade or examination
outcome.
Originality and scope
This is a newly authored, independent practice resource. It is not copied from Quizlet, a textbook, an instructor assessment, a course
exam, a test bank, or any official examination. It is not affiliated with a school or publisher.
Original educational practice material - not affiliated with Quizlet, a school, or an official examination Page 1
, Practice Questions with Answers & Rationales
1. A patient has fluid accumulating in tissue after lymphatic vessels are damaged. Which normal
lymphatic function is most directly impaired?
A. Returning excess interstitial fluid to the bloodstream
B. Producing erythrocytes in the marrow
C. Secreting surfactant into alveoli
D. Transporting oxygen in plasma
Correct answer: A
Rationale: Lymphatic vessels collect excess interstitial fluid and return it to the venous circulation. Damage can cause
lymphedema.
Original educational practice material - not affiliated with Quizlet, a school, or an official examination Page 2
, 2. Once interstitial fluid enters a lymphatic capillary, it is called:
A. Serum
B. Lymph
C. Cytosol
D. Plasma
Correct answer: B
Rationale: Interstitial fluid becomes lymph after it enters lymphatic capillaries.
Original educational practice material - not affiliated with Quizlet, a school, or an official examination Page 3
, 3. Which feature helps lymphatic capillaries take up excess tissue fluid?
A. Thick smooth-muscle walls
B. Overlapping endothelial cells that function as mini-valves
C. A continuous basement membrane with tight junctions
D. Ciliated cartilage rings
Correct answer: B
Rationale: Loosely overlapping endothelial cells form flap-like mini-valves that open when tissue pressure rises.
Original educational practice material - not affiliated with Quizlet, a school, or an official examination Page 4
