1
BIOS 252 / BIOS252 EXAM 2
ACTUAL EXAM 2026/2027 |
ANATOMY AND PHYSIOLOGY II
WITH LAB | CHAMBERLAIN | PASS
GUARANTEED
Q001: A laboratory analysis of a blood sample shows elevated levels of T3 and T4
hormones with decreased TSH. Which endocrine gland is primarily affected and
what feedback mechanism is disrupted?
Options:
A. Anterior pituitary; positive feedback loop
B. Thyroid gland; negative feedback loop - CORRECT
C. Adrenal cortex; renin-angiotensin feedback loop
D. Posterior pituitary; ADH feedback loop
ANSWER: B
Q002: During a cardiovascular lab demonstration, you observe a heart model with
the right atrioventricular valve. Which anatomical structure prevents backflow of
blood from the right ventricle to the right atrium during systole?
Options:
A. Pulmonary semilunar valve
B. Bicuspid valve
C. Tricuspid valve with chordae tendineae and papillary muscles - CORRECT
D. Coronary sinus valve
ANSWER: C
, 2
Q003: In a spirometry lab session, a student performs a forced vital capacity (FVC)
maneuver. The tracing shows: FVC = 4.2L, FEV1 = 3.3L, and the FEV1/FVC ratio
is 79%. Based on these results, which respiratory condition is most likely ruled
out?
Options:
A. Restrictive lung disease
B. Obstructive lung disease - CORRECT
C. Combined restrictive and obstructive disease
D. Normal respiratory function
ANSWER: B
Q004: A blood smear analysis in the lab shows a differential count with 45%
neutrophils, 8% eosinophils, 4% basophils, 35% lymphocytes, and 8% monocytes.
Which immune cell type is responsible for antibody-mediated immunity and would
be elevated in a chronic viral infection?
Options:
A. Neutrophils
B. Eosinophils
C. Lymphocytes - CORRECT
D. Monocytes
ANSWER: C
Q005: A 45-year-old patient has an ECG tracing showing a PR interval of 0.28
seconds (normal 0.12-0.20). In the cardiac conduction system, where is the delay
most likely occurring?
Options:
A. Sinoatrial (SA) node
B. Atrioventricular (AV) node - CORRECT
C. Bundle of His
, 3
D. Purkinje fibers
ANSWER: B
Q006: In a lab simulation of gas exchange, you observe that increasing the partial
pressure gradient of oxygen across a membrane increases diffusion rate. Which law
of diffusion does this demonstrate?
Options:
A. Boyle's Law
B. Dalton's Law
C. Henry's Law
D. Fick's Law - CORRECT
ANSWER: D
Q007: A lymph node biopsy shows numerous germinal centers with active B cell
proliferation. In the immune response, which type of cell is the primary activator of
B cells in germinal centers?
Options:
A. Helper T cells - CORRECT
B. Cytotoxic T cells
C. Natural killer cells
D. Macrophages
ANSWER: A
Q008: During a cardiovascular physiology lab, you measure a student's blood
pressure as 148/92 mmHg. What is the calculated mean arterial pressure (MAP)?
Options:
A. 110 mmHg
B. 112 mmHg - CORRECT
C. 115 mmHg
BIOS 252 / BIOS252 EXAM 2
ACTUAL EXAM 2026/2027 |
ANATOMY AND PHYSIOLOGY II
WITH LAB | CHAMBERLAIN | PASS
GUARANTEED
Q001: A laboratory analysis of a blood sample shows elevated levels of T3 and T4
hormones with decreased TSH. Which endocrine gland is primarily affected and
what feedback mechanism is disrupted?
Options:
A. Anterior pituitary; positive feedback loop
B. Thyroid gland; negative feedback loop - CORRECT
C. Adrenal cortex; renin-angiotensin feedback loop
D. Posterior pituitary; ADH feedback loop
ANSWER: B
Q002: During a cardiovascular lab demonstration, you observe a heart model with
the right atrioventricular valve. Which anatomical structure prevents backflow of
blood from the right ventricle to the right atrium during systole?
Options:
A. Pulmonary semilunar valve
B. Bicuspid valve
C. Tricuspid valve with chordae tendineae and papillary muscles - CORRECT
D. Coronary sinus valve
ANSWER: C
, 2
Q003: In a spirometry lab session, a student performs a forced vital capacity (FVC)
maneuver. The tracing shows: FVC = 4.2L, FEV1 = 3.3L, and the FEV1/FVC ratio
is 79%. Based on these results, which respiratory condition is most likely ruled
out?
Options:
A. Restrictive lung disease
B. Obstructive lung disease - CORRECT
C. Combined restrictive and obstructive disease
D. Normal respiratory function
ANSWER: B
Q004: A blood smear analysis in the lab shows a differential count with 45%
neutrophils, 8% eosinophils, 4% basophils, 35% lymphocytes, and 8% monocytes.
Which immune cell type is responsible for antibody-mediated immunity and would
be elevated in a chronic viral infection?
Options:
A. Neutrophils
B. Eosinophils
C. Lymphocytes - CORRECT
D. Monocytes
ANSWER: C
Q005: A 45-year-old patient has an ECG tracing showing a PR interval of 0.28
seconds (normal 0.12-0.20). In the cardiac conduction system, where is the delay
most likely occurring?
Options:
A. Sinoatrial (SA) node
B. Atrioventricular (AV) node - CORRECT
C. Bundle of His
, 3
D. Purkinje fibers
ANSWER: B
Q006: In a lab simulation of gas exchange, you observe that increasing the partial
pressure gradient of oxygen across a membrane increases diffusion rate. Which law
of diffusion does this demonstrate?
Options:
A. Boyle's Law
B. Dalton's Law
C. Henry's Law
D. Fick's Law - CORRECT
ANSWER: D
Q007: A lymph node biopsy shows numerous germinal centers with active B cell
proliferation. In the immune response, which type of cell is the primary activator of
B cells in germinal centers?
Options:
A. Helper T cells - CORRECT
B. Cytotoxic T cells
C. Natural killer cells
D. Macrophages
ANSWER: A
Q008: During a cardiovascular physiology lab, you measure a student's blood
pressure as 148/92 mmHg. What is the calculated mean arterial pressure (MAP)?
Options:
A. 110 mmHg
B. 112 mmHg - CORRECT
C. 115 mmHg
