BIOS 255 WEEK 7 QUIZ EXAM 4
(Latest Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A –
Chamberlain
1. The lymphatic system primarily functions to:
A. Pump blood
B. Defend against pathogens
C. Digest nutrients
D. Transport oxygen
Correct Answer: B
Rationale: The lymphatic system transports lymph, filters
pathogens, and produces immune cells.
2. Lymph is formed from:
A. Plasma
B. Interstitial fluid
C. Red blood cells
D. Platelets
Correct Answer: B
Rationale: Lymph originates when interstitial fluid enters lymphatic
capillaries.
,3. The spleen functions to:
A. Filter blood and store lymphocytes
B. Digest fats
C. Produce insulin
D. Transport oxygen
Correct Answer: A
Rationale: The spleen removes old red blood cells and houses
lymphocytes for immunity.
4. Tonsils are important because they:
A. Produce insulin
B. Trap pathogens entering mouth and nose
C. Filter blood
D. Store lymphocytes
Correct Answer: B
Rationale: Tonsils are lymphoid tissue that protect against inhaled
or ingested pathogens.
5. The thymus gland:
A. Produces insulin
B. Matures T-lymphocytes
C. Filters blood
D. Detoxifies toxins
Correct Answer: B
,Rationale: Thymus provides an environment for T-cell
differentiation and maturation.
6. Innate immunity is:
A. Acquired after infection
B. Present at birth and non-specific
C. Only through vaccination
D. Only passive
Correct Answer: B
Rationale: Innate immunity is the body’s first line of defense and
responds non-specifically.
7. Acquired immunity develops after:
A. Birth only
B. Vaccination or infection
C. Fever
D. Histamine release
Correct Answer: B
Rationale: Adaptive immunity develops after exposure to specific
antigens.
8. Antibodies are produced by:
A. T-cells
B. B-cells
C. Macrophages
, D. NK cells
Correct Answer: B
Rationale: B-cells differentiate into plasma cells that secrete
antibodies.
9. Helper T-cells function to:
A. Kill infected cells directly
B. Activate B-cells and cytotoxic T-cells
C. Produce antibodies
D. Transport oxygen
Correct Answer: B
Rationale: Helper T-cells coordinate immune responses by
activating other immune cells.
10. Cytotoxic T-cells:
A. Produce antibodies
B. Destroy infected or abnormal cells
C. Transport oxygen
D. Release histamine
Correct Answer: B
Rationale: Cytotoxic T-cells kill virus-infected and transformed
cells.
11. First line of defense includes:
(Latest Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A –
Chamberlain
1. The lymphatic system primarily functions to:
A. Pump blood
B. Defend against pathogens
C. Digest nutrients
D. Transport oxygen
Correct Answer: B
Rationale: The lymphatic system transports lymph, filters
pathogens, and produces immune cells.
2. Lymph is formed from:
A. Plasma
B. Interstitial fluid
C. Red blood cells
D. Platelets
Correct Answer: B
Rationale: Lymph originates when interstitial fluid enters lymphatic
capillaries.
,3. The spleen functions to:
A. Filter blood and store lymphocytes
B. Digest fats
C. Produce insulin
D. Transport oxygen
Correct Answer: A
Rationale: The spleen removes old red blood cells and houses
lymphocytes for immunity.
4. Tonsils are important because they:
A. Produce insulin
B. Trap pathogens entering mouth and nose
C. Filter blood
D. Store lymphocytes
Correct Answer: B
Rationale: Tonsils are lymphoid tissue that protect against inhaled
or ingested pathogens.
5. The thymus gland:
A. Produces insulin
B. Matures T-lymphocytes
C. Filters blood
D. Detoxifies toxins
Correct Answer: B
,Rationale: Thymus provides an environment for T-cell
differentiation and maturation.
6. Innate immunity is:
A. Acquired after infection
B. Present at birth and non-specific
C. Only through vaccination
D. Only passive
Correct Answer: B
Rationale: Innate immunity is the body’s first line of defense and
responds non-specifically.
7. Acquired immunity develops after:
A. Birth only
B. Vaccination or infection
C. Fever
D. Histamine release
Correct Answer: B
Rationale: Adaptive immunity develops after exposure to specific
antigens.
8. Antibodies are produced by:
A. T-cells
B. B-cells
C. Macrophages
, D. NK cells
Correct Answer: B
Rationale: B-cells differentiate into plasma cells that secrete
antibodies.
9. Helper T-cells function to:
A. Kill infected cells directly
B. Activate B-cells and cytotoxic T-cells
C. Produce antibodies
D. Transport oxygen
Correct Answer: B
Rationale: Helper T-cells coordinate immune responses by
activating other immune cells.
10. Cytotoxic T-cells:
A. Produce antibodies
B. Destroy infected or abnormal cells
C. Transport oxygen
D. Release histamine
Correct Answer: B
Rationale: Cytotoxic T-cells kill virus-infected and transformed
cells.
11. First line of defense includes:
