Biology · General Awareness

Skeletal and Muscular System

1,141 Questions

The skeletal and muscular system is a core topic in human biology. It covers the structure and function of bones, joints, and muscles. These concepts frequently appear in general science sections of various competitive exams. Master this topic to score higher.

Types of jointsHuman body bonesSkeletal fracturesMuscle anatomy

Skeletal and Muscular System Questions

Multiple choice

The lowest pair of ribs in the human body is known as

  1. Additional ribs

  2. Floating ribs

  3. Xiphoid ribs

  4. Invasive ribs

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The 11th and 12th pairs of ribs are called floating ribs because they do not attach to the sternum or to the cartilage of other ribs.

Multiple choice

The reduction of bone density to a level that impairs the mechanical support is called

  1. Osteoporosis

  2. Osteoclast

  3. Osteomalacia

  4. Osteosenile malaise

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Osteoporosis is a condition characterized by a significant reduction in bone density, which weakens the bone structure and increases the risk of fractures. Osteoclasts are cells that break down bone tissue, while osteomalacia refers to the softening of bones due to vitamin D deficiency.

Multiple choice

The bone marrow is composed of

  1. muscle fibre and adipose tissue

  2. areolar tissue and adipose tissue

  3. adipose tissue and calcified cartilage

  4. adipose tissue areolar tissue and blood vessels
Reveal answer Fill a bubble to check yourself
B Correct answer
Multiple choice

Red bone marrow in the human adult is found in

  1. spongy bones of the cranial region only

  2. ribs, sternum, proximal extremities of femur and humerus

  3. vertebral centra only

  4. all the above locations
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In adults, red bone marrow is found in the spongy bone of the ribs, sternum, vertebrae, pelvis, and the proximal ends of the femur and humerus.

Multiple choice

Tendon is a structure which connects

  1. a bone with another bone

  2. a muscle with a bone

  3. a nerve with a muscle or bone

  4. a muscle with a muscle
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A tendon is a fibrous connective tissue that attaches muscle to bone, enabling movement.

Multiple choice

Splint bones of horse are vestigial

  1. Ulna and Fibula bones

  2. 2nd and 3rd fingers

  3. 2nd and 4th fingers

  4. Humerus and Femur bones
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In the evolution of the horse, the lateral digits (the 2nd and 4th fingers/toes) were reduced to vestigial structures known as splint bones.

Multiple choice

Thoracic cage of man is formed by

  1. ribs and thoracic vertebrae

  2. ribs, sternum and thoracic vertebrae

  3. ribs and sternum

  4. ribs, sternum and lumbar vertebrae
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Thoracic cage of man is formed by ribs. sterum and thoracic vertebrae. Ribs are found articulating with the thoracic vertebrae. 

Multiple choice

Ear ossicle, incus is a modified form of which bone?

  1. Jugal

  2. Articular

  3. Quadrate

  4. Hyomandibular
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

There are three auditory ossicles in the middle ear. Malleus (hammer shaped), incus (anvil shaped) and stapes (stirrup shaped). Stapes is the smallest bone in the body. Malleus, incus and stapes are modification of articular, quadrates and hyomandibular bones respectively.

Multiple choice

Hinge joint is present between :

  1. Humerus and pectoral girdle

  2. Femur and pelvic girdle

  3. Tibia and fibula

  4. Humerus and ulna
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A hinge joint (ginglymus) is a bone joint in which the articular surfaces are molded to each other in such a manner as to permit motion only in one plane.The best examples of ginglymoid joints are the interphalangeal joints of the hand and those of the foot and the joint between the humerus and ulna.

Multiple choice

Funny bone is

  1. a nerve

  2. a muscle

  3. a blood vessel

  4. the smallest bone in the human body
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The funny bone is not a bone at all, but the ulnar nerve, which runs near the elbow joint and causes a tingling sensation when struck.