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

Which of the following is the smallest bone in the human body?

  1. Tibia

  2. Skull bone

  3. Ossicle

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

The ossicles (malleus, incus, and stapes) are the three smallest bones in the human body, located in the middle ear. The stapes is the smallest of all, measuring approximately 3mm × 2.5mm. These tiny bones transmit sound vibrations from the eardrum to the inner ear. The tibia, skull bones, and kneecap (patella) are all significantly larger.

Multiple choice

What is a funny bone?

  1. A nerve

  2. A blood vessel

  3. A bone

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

The 'funny bone' is actually the ulnar nerve where it passes around the elbow. When you hit your elbow in a certain spot, you're compressing this nerve against the bone, causing the characteristic tingling sensation. It's not a bone, muscle, or blood vessel despite the name.

Multiple choice

Directions: Choose a suitable option to fill in the blank:

When we dislocate a bone, _________ out of connection.

  1. pressure forces the ends of opposing bones

  2. pressure the ends of opposing bones

  3. pressured the ends of opposing bones

  4. pressured force the ends of opposing bones
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When a bone is dislocated, pressure forces the ends of opposing bones out of their normal connection. This is a straightforward passive construction where 'pressure' is the subject and 'forces' is the active verb.

Multiple choice

The infection of the bone or bone marrow is known as

  1. Necrotizing fasciitis

  2. Noma

  3. Osteomyelitis

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

Osteomyelitis simply means an infection of the bone or bone marrow. It can be usefully subclassified on the basis of the causative organism (pyogenic bacteria or mycobacteria), the route, duration and anatomic location of the infection.

Multiple choice

The upper jaw bone is called _____.

  1. maxilla

  2. mandible

  3. vault

  4. sagittarius

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

The maxilla forms the upper jaw and holds the upper teeth. The mandible (B) is the lower jawbone (the only movable skull bone), vault (C) refers to the cranial vault (skull cap), and sagittarius (D) is a zodiac sign, not an anatomical term.

Multiple choice

Which among the following statements regarding the ligaments in the human body is incorrect?

  1. Ligaments are the band of rona, fibrous dense irregular connective tissue bundles.

  2. Capsular ligaments are part of the articular capsule that surrounds synovial joints.

  3. Intra-capsular ligaments, are much less common.

  4. Ligaments are viscoelastic.

  5. If the ligaments lengthen too much, then the joint will be weakened.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ligament most commonly refers to a band of rona, fibrous dense regular connective tissue bundles, made of attenuated collagenous fibers; with said bundles protected by dense irregular connective tissue sheaths.

Multiple choice

The first carpo metacarpal joint is a prominent example of __________________.

  1. a condyloid joint

  2. a hinge joint

  3. a saddle joint

  4. the ball and socket joint

  5. a pivot joint
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In a saddle joint, the opposing surfaces are reciprocally concave-convex. Saddle joints are said to be biaxial, allowing movement in the sagittal and frontal planes. The best example of saddle joints are first carpo metacarpal joints, joints between femur and patella, calcaneocuboid joints.

Multiple choice

The longest bone in the human body is

  1. thigh born

  2. ribs

  3. back bone

  4. ulna
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The femur (thigh bone) is the longest and heaviest bone in the human body, typically about 50 cm long in adults. The 'born' in option A is a typo for 'bone'. The spine (back bone) consists of many small vertebrae, ribs form the ribcage, and ulna is a forearm bone.