BIOS 256 Final Exam 1 (Latest Update
) 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 striated
due to sarcomeres.
2. Which organ is primarily responsible for detoxification of
blood?
A. Kidney
B. Liver
C. Spleen
D. Pancreas
Correct Answer: B
Rationale: The liver detoxifies substances, metabolizes drugs, and
produces bile.
,3. Which hormone decreases blood glucose levels?
A. Glucagon
B. Insulin
C. Cortisol
D. Adrenaline
Correct Answer: B
Rationale: Insulin promotes uptake of glucose by cells, lowering
blood sugar levels.
4. Which blood component transports oxygen?
A. White blood cells
B. Platelets
C. Red blood cells
D. Plasma
Correct Answer: C
Rationale: Red blood cells contain hemoglobin, which carries
oxygen throughout the body.
5. Which part of the neuron receives signals from other neurons?
A. Axon
B. Dendrite
C. Soma
D. Axon terminal
,Correct Answer: B
Rationale: Dendrites carry incoming signals to the neuron’s cell
body.
6. Which blood vessels carry blood toward the heart?
A. Arteries
B. Veins
C. Arterioles
D. Capillaries
Correct Answer: B
Rationale: Veins return deoxygenated blood to the heart, often with
the help of valves.
7. Which part of the brain controls balance and coordination?
A. Cerebrum
B. Cerebellum
C. Medulla oblongata
D. Hypothalamus
Correct Answer: B
Rationale: The cerebellum integrates sensory input and coordinates
voluntary movements.
8. Which hormone stimulates milk ejection during breastfeeding?
A. Prolactin
B. Oxytocin
, C. Estrogen
D. Progesterone
Correct Answer: B
Rationale: Oxytocin causes contraction of mammary glands to
release milk.
9. Which hormone regulates the sleep-wake cycle?
A. Melatonin
B. Cortisol
C. Thyroxine
D. Insulin
Correct Answer: A
Rationale: Melatonin, secreted by the pineal gland, regulates
circadian rhythms.
10. Which organ is the main site of nutrient absorption?
A. Stomach
B. Small intestine
C. Large intestine
D. Esophagus
Correct Answer: B
Rationale: The small intestine absorbs nutrients via villi and
microvilli.
) 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 striated
due to sarcomeres.
2. Which organ is primarily responsible for detoxification of
blood?
A. Kidney
B. Liver
C. Spleen
D. Pancreas
Correct Answer: B
Rationale: The liver detoxifies substances, metabolizes drugs, and
produces bile.
,3. Which hormone decreases blood glucose levels?
A. Glucagon
B. Insulin
C. Cortisol
D. Adrenaline
Correct Answer: B
Rationale: Insulin promotes uptake of glucose by cells, lowering
blood sugar levels.
4. Which blood component transports oxygen?
A. White blood cells
B. Platelets
C. Red blood cells
D. Plasma
Correct Answer: C
Rationale: Red blood cells contain hemoglobin, which carries
oxygen throughout the body.
5. Which part of the neuron receives signals from other neurons?
A. Axon
B. Dendrite
C. Soma
D. Axon terminal
,Correct Answer: B
Rationale: Dendrites carry incoming signals to the neuron’s cell
body.
6. Which blood vessels carry blood toward the heart?
A. Arteries
B. Veins
C. Arterioles
D. Capillaries
Correct Answer: B
Rationale: Veins return deoxygenated blood to the heart, often with
the help of valves.
7. Which part of the brain controls balance and coordination?
A. Cerebrum
B. Cerebellum
C. Medulla oblongata
D. Hypothalamus
Correct Answer: B
Rationale: The cerebellum integrates sensory input and coordinates
voluntary movements.
8. Which hormone stimulates milk ejection during breastfeeding?
A. Prolactin
B. Oxytocin
, C. Estrogen
D. Progesterone
Correct Answer: B
Rationale: Oxytocin causes contraction of mammary glands to
release milk.
9. Which hormone regulates the sleep-wake cycle?
A. Melatonin
B. Cortisol
C. Thyroxine
D. Insulin
Correct Answer: A
Rationale: Melatonin, secreted by the pineal gland, regulates
circadian rhythms.
10. Which organ is the main site of nutrient absorption?
A. Stomach
B. Small intestine
C. Large intestine
D. Esophagus
Correct Answer: B
Rationale: The small intestine absorbs nutrients via villi and
microvilli.
