BIOL 251 Human Anatomy & Physiology I with Lab | Module 4
Exam Review
This professional academic resource is a premier study guide tailored explicitly for pre-
nursing and health science students preparing for the BIOL 251 Human Anatomy &
Physiology I Module 4 Examination. It features high-yield practice questions, 100%
verified answers, and comprehensive structural rationales covering both lecture
and laboratory testing concepts. Utilizing these premium materials ensures a complete
mastery of the integumentary system, skeletal tissue histology, joint classification, and
muscle contraction mechanics to eliminate test anxiety and guarantee an A grade on
your proctored assessment.
Question 1:
A nurse is teaching a client about bone remodeling. Which of the following statements
indicates understanding?
A. "Bone remodeling only occurs during childhood."
B. "Bone remodeling involves both bone deposition and resorption throughout life."
C. "Bone remodeling stops after age 30."
D. "Bone remodeling only occurs after a fracture."
Answer: B. "Bone remodeling involves both bone deposition and resorption
throughout life."
Rationale: Bone remodeling is a lifelong process where old bone is resorbed by osteoclasts
and new bone is deposited by osteoblasts. It continues throughout life and is essential for
calcium homeostasis and bone strength.
Question 2:
Which of the following hormones increases blood calcium levels by stimulating
osteoclast activity?
A. Calcitonin
B. Parathyroid hormone (PTH)
C. Insulin
D. Estrogen
,Answer: B. Parathyroid hormone (PTH)
Rationale: PTH increases blood calcium by stimulating osteoclasts to resorb bone,
increasing intestinal calcium absorption, and reducing renal calcium excretion. Calcitonin
lowers blood calcium.
Question 3:
A client asks the nurse which vitamin is essential for calcium absorption in the intestines.
Which is the correct response?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: C. Vitamin D
Rationale: Vitamin D (calcitriol) is essential for calcium absorption in the intestines.
Deficiency leads to rickets in children and osteomalacia in adults.
Question 4:
Which type of fracture is characterized by the bone being broken into multiple
fragments?
A. Simple fracture
B. Comminuted fracture
C. Greenstick fracture
D. Spiral fracture
Answer: B. Comminuted fracture
Rationale: A comminuted fracture involves bone broken into three or more fragments. A
simple fracture is a single break. A greenstick fracture is incomplete, occurring in children.
A spiral fracture results from twisting forces.
Question 5:
Which type of fracture is most common in children because their bones are more
,flexible?
A. Comminuted fracture
B. Greenstick fracture
C. Compound fracture
D. Spiral fracture
Answer: B. Greenstick fracture
Rationale: A greenstick fracture is an incomplete fracture where one side of the bone
bends and the other breaks. It is common in children because their bones are more flexible
and have a thicker periosteum.
Question 6:
The first stage of fracture healing is:
A. Callus formation
B. Hematoma formation
C. Bone remodeling
D. Ossification
Answer: B. Hematoma formation
Rationale: Fracture healing begins with hematoma formation (blood clot) at the fracture
site, followed by fibrocartilaginous callus formation, bony callus formation, and bone
remodeling.
Question 7:
Which of the following is the correct sequence of fracture healing?
A. Hematoma → Bony callus → Fibrocartilaginous callus → Remodeling
B. Hematoma → Fibrocartilaginous callus → Bony callus → Remodeling
C. Fibrocartilaginous callus → Hematoma → Bony callus → Remodeling
D. Remodeling → Hematoma → Callus → Ossification
Answer: B. Hematoma → Fibrocartilaginous callus → Bony callus → Remodeling
Rationale: Fracture healing occurs in stages: hematoma formation, fibrocartilaginous
callus formation, bony callus formation, and bone remodeling.
, Question 8:
Osteoporosis is characterized by:
A. Increased bone density
B. Decreased bone mass and increased fracture risk
C. Excessive bone formation
D. Inflammation of the joints
Answer: B. Decreased bone mass and increased fracture risk
Rationale: Osteoporosis is a condition characterized by reduced bone mass and
microarchitectural deterioration, leading to increased bone fragility and fracture risk.
Question 9:
Which of the following is a risk factor for osteoporosis?
A. Obesity
B. Postmenopausal status
C. African American race
D. High calcium intake
Answer: B. Postmenopausal status
Rationale: Postmenopausal women are at increased risk for osteoporosis due to decreased
estrogen levels, which normally protect bone density. Other risk factors include thin build,
Caucasian/Asian race, and low calcium intake.
Question 10:
Rickets in children is caused by a deficiency of:
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: C. Vitamin D
Rationale: Rickets is caused by vitamin D deficiency, leading to inadequate calcium
absorption and defective bone mineralization, resulting in soft, weak bones.
Exam Review
This professional academic resource is a premier study guide tailored explicitly for pre-
nursing and health science students preparing for the BIOL 251 Human Anatomy &
Physiology I Module 4 Examination. It features high-yield practice questions, 100%
verified answers, and comprehensive structural rationales covering both lecture
and laboratory testing concepts. Utilizing these premium materials ensures a complete
mastery of the integumentary system, skeletal tissue histology, joint classification, and
muscle contraction mechanics to eliminate test anxiety and guarantee an A grade on
your proctored assessment.
Question 1:
A nurse is teaching a client about bone remodeling. Which of the following statements
indicates understanding?
A. "Bone remodeling only occurs during childhood."
B. "Bone remodeling involves both bone deposition and resorption throughout life."
C. "Bone remodeling stops after age 30."
D. "Bone remodeling only occurs after a fracture."
Answer: B. "Bone remodeling involves both bone deposition and resorption
throughout life."
Rationale: Bone remodeling is a lifelong process where old bone is resorbed by osteoclasts
and new bone is deposited by osteoblasts. It continues throughout life and is essential for
calcium homeostasis and bone strength.
Question 2:
Which of the following hormones increases blood calcium levels by stimulating
osteoclast activity?
A. Calcitonin
B. Parathyroid hormone (PTH)
C. Insulin
D. Estrogen
,Answer: B. Parathyroid hormone (PTH)
Rationale: PTH increases blood calcium by stimulating osteoclasts to resorb bone,
increasing intestinal calcium absorption, and reducing renal calcium excretion. Calcitonin
lowers blood calcium.
Question 3:
A client asks the nurse which vitamin is essential for calcium absorption in the intestines.
Which is the correct response?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: C. Vitamin D
Rationale: Vitamin D (calcitriol) is essential for calcium absorption in the intestines.
Deficiency leads to rickets in children and osteomalacia in adults.
Question 4:
Which type of fracture is characterized by the bone being broken into multiple
fragments?
A. Simple fracture
B. Comminuted fracture
C. Greenstick fracture
D. Spiral fracture
Answer: B. Comminuted fracture
Rationale: A comminuted fracture involves bone broken into three or more fragments. A
simple fracture is a single break. A greenstick fracture is incomplete, occurring in children.
A spiral fracture results from twisting forces.
Question 5:
Which type of fracture is most common in children because their bones are more
,flexible?
A. Comminuted fracture
B. Greenstick fracture
C. Compound fracture
D. Spiral fracture
Answer: B. Greenstick fracture
Rationale: A greenstick fracture is an incomplete fracture where one side of the bone
bends and the other breaks. It is common in children because their bones are more flexible
and have a thicker periosteum.
Question 6:
The first stage of fracture healing is:
A. Callus formation
B. Hematoma formation
C. Bone remodeling
D. Ossification
Answer: B. Hematoma formation
Rationale: Fracture healing begins with hematoma formation (blood clot) at the fracture
site, followed by fibrocartilaginous callus formation, bony callus formation, and bone
remodeling.
Question 7:
Which of the following is the correct sequence of fracture healing?
A. Hematoma → Bony callus → Fibrocartilaginous callus → Remodeling
B. Hematoma → Fibrocartilaginous callus → Bony callus → Remodeling
C. Fibrocartilaginous callus → Hematoma → Bony callus → Remodeling
D. Remodeling → Hematoma → Callus → Ossification
Answer: B. Hematoma → Fibrocartilaginous callus → Bony callus → Remodeling
Rationale: Fracture healing occurs in stages: hematoma formation, fibrocartilaginous
callus formation, bony callus formation, and bone remodeling.
, Question 8:
Osteoporosis is characterized by:
A. Increased bone density
B. Decreased bone mass and increased fracture risk
C. Excessive bone formation
D. Inflammation of the joints
Answer: B. Decreased bone mass and increased fracture risk
Rationale: Osteoporosis is a condition characterized by reduced bone mass and
microarchitectural deterioration, leading to increased bone fragility and fracture risk.
Question 9:
Which of the following is a risk factor for osteoporosis?
A. Obesity
B. Postmenopausal status
C. African American race
D. High calcium intake
Answer: B. Postmenopausal status
Rationale: Postmenopausal women are at increased risk for osteoporosis due to decreased
estrogen levels, which normally protect bone density. Other risk factors include thin build,
Caucasian/Asian race, and low calcium intake.
Question 10:
Rickets in children is caused by a deficiency of:
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: C. Vitamin D
Rationale: Rickets is caused by vitamin D deficiency, leading to inadequate calcium
absorption and defective bone mineralization, resulting in soft, weak bones.
