BIOS 255 WEEK 7 ANATOMY AND
PHYSIOLOGY IV
QUESTIONS & ANSWERS
CHAMBERLAIN
1. The lymphatic system primarily functions to:
A. Pump blood
B. Defend against pathogens
C. Digest nutrients
D. Transport oxygen
Correct Ansẉer: 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 Ansẉer: B
Rationale: Lymph originates ẉhen 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 Ansẉer: 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 Ansẉer: 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 Ansẉer: 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 Ansẉer: 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 Ansẉer: 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 Ansẉer: 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 Ansẉer: 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
PHYSIOLOGY IV
QUESTIONS & ANSWERS
CHAMBERLAIN
1. The lymphatic system primarily functions to:
A. Pump blood
B. Defend against pathogens
C. Digest nutrients
D. Transport oxygen
Correct Ansẉer: 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 Ansẉer: B
Rationale: Lymph originates ẉhen 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 Ansẉer: 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 Ansẉer: 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 Ansẉer: 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 Ansẉer: 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 Ansẉer: 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 Ansẉer: 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 Ansẉer: 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
