BIOS 256 Final Exam (Latest Update 2025
/ 2026) Anatomy and Physiology IV with
Lab | Questions & Answers | 100% Correct
| Grade A – Chamberlain
1. Which type of muscle is voluntary and striated?
A. Smooth
B. Cardiac
C. Skeletal
D. None of the above
Correct Answer: C
Rationale: Skeletal muscle is under voluntary control and has a
striated appearance.
2. Which cranial nerve transmits visual information?
A. Optic (II)
B. Oculomotor (III)
C. Trochlear (IV)
D. Trigeminal (V)
Correct Answer: A
Rationale: The optic nerve carries visual signals from the retina to
the brain.
,3. Which hormone stimulates red blood cell production?
A. GH
B. TSH
C. Erythropoietin
D. FSH
Correct Answer: C
Rationale: Erythropoietin, secreted by the kidney, stimulates
erythropoiesis.
4. Which part of the neuron receives signals from other neurons?
A. Axon
B. Dendrite
C. Soma
D. Axon terminal
Correct Answer: B
Rationale: Dendrites receive incoming signals and transmit them
toward the cell body.
5. Which hormone lowers blood glucose levels?
A. Glucagon
B. Insulin
C. Cortisol
D. Epinephrine
Correct Answer: B
Rationale: Insulin promotes glucose uptake and storage in cells.
,6. Which hormone increases blood calcium levels?
A. Calcitonin
B. Parathyroid hormone
C. Vitamin D
D. Aldosterone
Correct Answer: B
Rationale: Parathyroid hormone stimulates calcium release from
bones and increases blood calcium.
7. Which organ converts ammonia to urea?
A. Liver
B. Kidney
C. Pancreas
D. Spleen
Correct Answer: A
Rationale: The liver detoxifies ammonia by converting it into urea
for excretion.
8. Which blood vessels carry blood toward the heart?
A. Arteries
B. Veins
C. Arterioles
D. Capillaries
Correct Answer: B
Rationale: Veins carry deoxygenated blood back to the heart.
, 9. Which lobe of the brain processes auditory information?
A. Temporal
B. Occipital
C. Parietal
D. Frontal
Correct Answer: A
Rationale: The temporal lobe contains the primary auditory cortex.
10. Which part of the heart pumps oxygenated blood to the body?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
Correct Answer: D
Rationale: The left ventricle pumps oxygen-rich blood into systemic
circulation.
11. Which hormone stimulates milk ejection during
breastfeeding?
A. Prolactin
B. Oxytocin
C. Estrogen
D. Progesterone
/ 2026) Anatomy and Physiology IV with
Lab | Questions & Answers | 100% Correct
| Grade A – Chamberlain
1. Which type of muscle is voluntary and striated?
A. Smooth
B. Cardiac
C. Skeletal
D. None of the above
Correct Answer: C
Rationale: Skeletal muscle is under voluntary control and has a
striated appearance.
2. Which cranial nerve transmits visual information?
A. Optic (II)
B. Oculomotor (III)
C. Trochlear (IV)
D. Trigeminal (V)
Correct Answer: A
Rationale: The optic nerve carries visual signals from the retina to
the brain.
,3. Which hormone stimulates red blood cell production?
A. GH
B. TSH
C. Erythropoietin
D. FSH
Correct Answer: C
Rationale: Erythropoietin, secreted by the kidney, stimulates
erythropoiesis.
4. Which part of the neuron receives signals from other neurons?
A. Axon
B. Dendrite
C. Soma
D. Axon terminal
Correct Answer: B
Rationale: Dendrites receive incoming signals and transmit them
toward the cell body.
5. Which hormone lowers blood glucose levels?
A. Glucagon
B. Insulin
C. Cortisol
D. Epinephrine
Correct Answer: B
Rationale: Insulin promotes glucose uptake and storage in cells.
,6. Which hormone increases blood calcium levels?
A. Calcitonin
B. Parathyroid hormone
C. Vitamin D
D. Aldosterone
Correct Answer: B
Rationale: Parathyroid hormone stimulates calcium release from
bones and increases blood calcium.
7. Which organ converts ammonia to urea?
A. Liver
B. Kidney
C. Pancreas
D. Spleen
Correct Answer: A
Rationale: The liver detoxifies ammonia by converting it into urea
for excretion.
8. Which blood vessels carry blood toward the heart?
A. Arteries
B. Veins
C. Arterioles
D. Capillaries
Correct Answer: B
Rationale: Veins carry deoxygenated blood back to the heart.
, 9. Which lobe of the brain processes auditory information?
A. Temporal
B. Occipital
C. Parietal
D. Frontal
Correct Answer: A
Rationale: The temporal lobe contains the primary auditory cortex.
10. Which part of the heart pumps oxygenated blood to the body?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
Correct Answer: D
Rationale: The left ventricle pumps oxygen-rich blood into systemic
circulation.
11. Which hormone stimulates milk ejection during
breastfeeding?
A. Prolactin
B. Oxytocin
C. Estrogen
D. Progesterone
