BIOS 252 Week 1 Quiz Exam 4 (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. Which lymphatic organ is primarily responsible for T cell
maturation?
A. Spleen
B. Thymus
C. Lymph nodes
D. Tonsils
Correct answer: B
Rationale: The thymus provides an environment for T cell
differentiation and selection.
2. Which lymphatic organ contains red pulp and white pulp?
A. Lymph nodes
B. Thymus
C. Spleen
D. Tonsils
,Correct answer: C
Rationale: Red pulp filters blood and removes old RBCs; white pulp
contains lymphocytes for immune defense.
3. Which lymphatic structure absorbs dietary fats from the small
intestine?
A. Thoracic duct
B. Lacteals
C. Right lymphatic duct
D. Lymph nodes
Correct answer: B
Rationale: Lacteals transport chyle, which contains absorbed lipids,
to the thoracic duct.
4. Which WBC type produces antibodies?
A. T lymphocytes
B. B lymphocytes
C. NK cells
D. Monocytes
Correct answer: B
Rationale: B cells differentiate into plasma cells that secrete
antibodies as part of humoral immunity.
5. Which lymphatic vessel drains most of the body into the left
subclavian vein?
,A. Right lymphatic duct
B. Thoracic duct
C. Lacteals
D. Afferent lymphatic vessels
Correct answer: B
Rationale: The thoracic duct collects lymph from both lower limbs,
abdomen, left thorax, left arm, and left side of the head.
6. Which lymphatic organ is largest in children relative to body
size?
A. Thymus
B. Spleen
C. Lymph nodes
D. Tonsils
Correct answer: A
Rationale: The thymus is proportionally largest in childhood and is
most active in producing T lymphocytes.
7. Which WBC type provides innate immunity against virus-
infected or tumor cells?
A. B lymphocytes
B. T lymphocytes
C. NK cells
D. Monocytes
, Correct answer: C
Rationale: Natural killer cells attack abnormal cells without prior
sensitization.
8. Which lymphatic organ traps pathogens entering the oral or
nasal cavity?
A. Thymus
B. Tonsils
C. Spleen
D. Lymph nodes
Correct answer: B
Rationale: Tonsils are lymphoid tissues in the pharynx that help
defend mucosal surfaces.
9. Which lymphatic organ filters lymph and activates
lymphocytes?
A. Spleen
B. Thymus
C. Lymph nodes
D. Tonsils
Correct answer: C
Rationale: Lymph nodes filter lymph to trap pathogens and activate
immune responses.
10. Which lymphatic organ produces T cells in childhood?
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. Which lymphatic organ is primarily responsible for T cell
maturation?
A. Spleen
B. Thymus
C. Lymph nodes
D. Tonsils
Correct answer: B
Rationale: The thymus provides an environment for T cell
differentiation and selection.
2. Which lymphatic organ contains red pulp and white pulp?
A. Lymph nodes
B. Thymus
C. Spleen
D. Tonsils
,Correct answer: C
Rationale: Red pulp filters blood and removes old RBCs; white pulp
contains lymphocytes for immune defense.
3. Which lymphatic structure absorbs dietary fats from the small
intestine?
A. Thoracic duct
B. Lacteals
C. Right lymphatic duct
D. Lymph nodes
Correct answer: B
Rationale: Lacteals transport chyle, which contains absorbed lipids,
to the thoracic duct.
4. Which WBC type produces antibodies?
A. T lymphocytes
B. B lymphocytes
C. NK cells
D. Monocytes
Correct answer: B
Rationale: B cells differentiate into plasma cells that secrete
antibodies as part of humoral immunity.
5. Which lymphatic vessel drains most of the body into the left
subclavian vein?
,A. Right lymphatic duct
B. Thoracic duct
C. Lacteals
D. Afferent lymphatic vessels
Correct answer: B
Rationale: The thoracic duct collects lymph from both lower limbs,
abdomen, left thorax, left arm, and left side of the head.
6. Which lymphatic organ is largest in children relative to body
size?
A. Thymus
B. Spleen
C. Lymph nodes
D. Tonsils
Correct answer: A
Rationale: The thymus is proportionally largest in childhood and is
most active in producing T lymphocytes.
7. Which WBC type provides innate immunity against virus-
infected or tumor cells?
A. B lymphocytes
B. T lymphocytes
C. NK cells
D. Monocytes
, Correct answer: C
Rationale: Natural killer cells attack abnormal cells without prior
sensitization.
8. Which lymphatic organ traps pathogens entering the oral or
nasal cavity?
A. Thymus
B. Tonsils
C. Spleen
D. Lymph nodes
Correct answer: B
Rationale: Tonsils are lymphoid tissues in the pharynx that help
defend mucosal surfaces.
9. Which lymphatic organ filters lymph and activates
lymphocytes?
A. Spleen
B. Thymus
C. Lymph nodes
D. Tonsils
Correct answer: C
Rationale: Lymph nodes filter lymph to trap pathogens and activate
immune responses.
10. Which lymphatic organ produces T cells in childhood?
