Skeletal System Practice Quiz for Nurse ( 10 MCQs with Rationale)

Hello Friends

Welcome to my blog! Today, we are discussing the Skeletal System. Here are 10 important multiple-choice questions (MCQs) to test your knowledge for upcoming nursing exams like AIIMS NORCET, ESIC, RRB, and CHO.

Read the question, choose your answer, and then check the correct option with the rationale provided below.

Question 1

How many bones are there in an adult human skeletal system?

A) 300

B) 206

C) 210

D) 208

Correct Answer: B) 206

Rationale: An adult human skeleton consists of 206 bones. Infants are born with approximately 300 bones, but as they grow, many of these bones fuse together (e.g., the sacrum and coccyx).

Question 2

Which type of bone cell is responsible for building new bone tissue?

A) Osteoclasts

B) Osteocytes

C) Osteoblasts

D) Chondrocytes

 Correct Answer: C) Osteoblasts

Rationale:

Osteoblasts: Build bone ("B" for Build). They secrete the matrix for bone formation.

Osteoclasts: Break down or resorb bone ("C" for Consume/Cut).

Osteocytes: Mature bone cells that maintain the bone matrix.

Question 3

Which of the following is NOT part of the Axial Skeleton?

A) Skull

B) Vertebral Column

C) Ribs

D) Femur

Correct Answer: D) Femur

 Rationale: The skeletal system is divided into Axial and Appendicular.

Axial Skeleton: Skull, vertebral column, and thoracic cage (ribs/sternum).

Appendicular Skeleton: Limbs (arms, legs) and girdles. The Femur (thigh bone) is part of the appendicular skeleton.

Question 4

What is the primary function of Red Bone Marrow?

A) Fat storage

B) Production of blood cells (Hematopoiesis)

C) Calcium storage

D) Production of hormones

Correct Answer: B) Production of blood cells (Hematopoiesis)

 Rationale: Red bone marrow is responsible for hematopoiesis, which is the production of red blood cells, white blood cells, and platelets. Yellow bone marrow is primarily responsible for storing fat (triglycerides).

Question 5

A connective tissue that connects "Bone to Bone" is known as:

A) Tendon

B) Ligament

C) Cartilage

D) Fascia

Correct Answer: B) Ligament

Rationale:

Ligament: Connects Bone to Bone (Remember: B-L-B).

Tendon: Connects Muscle to Bone (Remember: M-T-B).

Question 6

Which assessment finding in a patient with a cast suggests compartment syndrome?

A) Mild discomfort

B) Warm skin distal to the cast

C) Pain unrelieved by pain medication and paresthesia

D) Capillary refill of 2 seconds

Correct Answer: C) Pain unrelieved by pain medication and paresthesia

 Rationale: Compartment syndrome is a medical emergency caused by increased pressure within a muscle compartment. The classic signs are the 6 Ps: Pain (unrelieved by meds), Paresthesia (tingling), Pallor, Pulselessness, Paralysis, and Poikilothermia (coldness).

Question 7

The "Funny Bone" is actually a nerve located near which bone?

A) Humerus

B) Radius

C) Ulna

D) Femur

Correct Answer: A) Humerus

Rationale: The sensation of hitting the "funny bone" is actually the ulnar nerve being compressed against the medial epicondyle of the Humerus bone.

Question 8

Osteoporosis is most common in which demographic group?

A) Young adult males

B) Post-menopausal women

C) Children under 10

D) Athletes

 Correct Answer: B) Post-menopausal women

Rationale: After menopause, the production of estrogen decreases significantly. Estrogen helps protect bones. The lack of estrogen leads to increased bone resorption (breakdown), making post-menopausal women highly susceptible to Osteoporosis.

Question 9

Which vitamin is essential for the absorption of Calcium in the body?

A) Vitamin A

B) Vitamin C

C) Vitamin D

D) Vitamin K

Correct Answer: C) Vitamin D

Rationale: Even if you consume enough calcium, your body cannot absorb it effectively without Vitamin D. It helps regulate calcium and phosphorus levels in the blood.

Question 10

The longest and strongest bone in the human body is:

A) Tibia

B) Humerus

C) Femur

D) Sternum

Correct Answer: C) Femur

 Rationale: The Femur (thigh bone) is the longest, heaviest, and strongest bone in the human body. It supports the weight of the body and allows for leg motion.

Conclusion

How many did you get right? Comment your score below! Stay tuned for more nursing study notes and quizzes.