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 biology body movements gait of animals basics of joints joints and type of joints skeleton, joints and muscles

Joint between humerus and radio-ulna is

  1. Ball and socket

  2. Pivot

  3. Gliding

  4. Hinge
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A hinge joint is a common class of synovial joint that includes the ankle, elbow and knee joints. Hinge joints are formed between two or more bones where the bones can only move along one axis to fold or extend. The elbow is a more complex hinge joint that forms between the humerus of the upper arm and the ulna and radius of the forearm. So, the correct answer is 'Hinge'.

Multiple choice biology body movements gait of animals basics of joints joints and type of joints skeleton, joints and muscles

Ulna is a

  1. Long and curved bone

  2. Small slender bone

  3. Very small bone

  4. Very long bone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • The bones of the hand (forelimb) are humerus, radius and ulna, carpals (wrist bones – 8 in number), metacarpals (palm bones – 5 in number) and phalanges (digits – 14 in number),
  • The ulna is a long and curved bone.
  • Proximally, the ulna articulates with the humerus at the elbow joint. Distally, the ulna articulates with the radius, forming the distal radio-ulnar joint.
  • So, the correct answer is 'Long and curved bone'.
Multiple choice biology skeleton, joints and muscles gait of animals basics of joints joints and type of joints skeleton - movement and locomotion

Acetabulum is formed at the point of fusion of bones

  1. Ilium, Ischium

  2. lschium and pubis

  3. Ilium, pubis

  4. Ilium, Ischium, pubis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There are three bones of the hip bone that come together to form the acetabulum. Two-fifths of the structure is the ischium, which provides lower and side boundaries to the acetabulum. The ilium forms the upper boundary, providing a little less than two-fifths of the structure of the acetabulum. The rest is formed by the pubis, near the midline.

So, the correct option is 'Ilium, Ischium, Pubis'.

Multiple choice zoology locomotion and movement basics of joints joints and type of joints skeleton, joints and muscles

Identify the joints, which are freely movable.

  1. Fibrous joints

  2. Symphyses

  3. Synovial joints

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

A synovial joint is a connection between two bones consisting of a cartilage lined cavity filled with fluid. Synovial joints are capable of the greatest movement. Knees, elbows and shoulders are examples of synovial joints. Since they allow for free movement, synovial joints are classified as diarthrosis. They allow for many types of movement including gliding, angular, rotational etc. So, the correct answer is 'Synovial joints'.

Multiple choice zoology musculo-skeletal system basics of joints joints and type of joints skeleton, joints and muscles

Which of the following is an immovable joint?  

  1. Joint in the arm

  2. Joints between teeth

  3. Joint between vertebrae

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

There are several examples of these joints in the human body, including joints between the bones of the skull, joints in the pelvis and joints between the teeth and the mandible, or lower jaw, and the maxilla, or upper jaw. Another name for immovable joins is a synarthrosis, which simply means immovable. The two types of immovable joints are fibrous joints and cartilaginous joints.

Therefore, (b) is the correct answer. 

Multiple choice biology windows of knowledge human tongue organ of taste tongue : the organ of taste

The ............ muscles of the tongue are not attached to the bone.

  1. Extrinsic

  2. Intrinsic

  3. Posterior

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

The eight muscles of the human tongue are classified as either intrinsic or extrinsic. The four intrinsic muscles act to change the shape of the tongue and are not attached to any bone. The four extrinsic muscles act to change the position of the tongue and are anchored to bone. Therefore, the correct answer is option B.

Multiple choice evs structure and functions of living organisms -ii experiments on digestive enzymes role of receptors in the mouth types of teeth introduction to human digestive system circulatory system and organs

Hardest substance of the body is

  1. Bone

  2. Enamel

  3. Cartilage

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

Hardest substance of the body is enamel. It is the thin outer covering of the tooth. It is composed of hydroxyapatite, which is a crystalline calcium phosphate. The color can vary from light yellow to a grayish white. It protects the tooth.

So, the correct answer is 'Enamel'.

Multiple choice evs our skeletal system and the skin bones and movements joints in the human body joints bones

Which of the following &fare not correctly matched pairs ?

(i) Ball and socket joint - Between humerus and pectoral girdle
(ii) Pivot joint - Between carpal and metacarpal
(iii) Saddle joint - Between atlas and axis 
(iv) Gliding joint  - Between the carpals
(v) Fibrous joint - In flat skull bones

  1. (ii) and (iii)

  2. (i) and (iv)

  3. (v) Only

  4. (ii) Only
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In the given table options i and iv are correctly matched.

So, the correct option is '(i) and (iv)'.

Multiple choice evs our skeletal system and the skin bones and movements joints in the human body joints bones

Hips are attached to

  1. scapula

  2. sternum

  3. clavide

  4. ilium
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The pelvic girdle is located in the lower part of the trunk. It consists of three bones that are upper ileum, lower ischium and inner pubis, they fuse to form a stout hip bone. Ventral wall of the pubis has a small bone which is known as cotyloid. The acetabulum is formed by ilium, ischium and pubis, but in mammals, pubis is replaced by cotyloid bone.

So, the correct option is 'ilium'