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Which of the following represents correct matching set of type of joints? (A) Ball and socket joint (i) Arms and shoulders (B) Pivotal joint (ii) Jaw (C) Hinge joint (iii) Neck (D) Fixed joint (iv) Elbow

Which of the following represents correct matching set of type of joints? (A) Ball and socket joint (i) Arms and shoulders (B) Pivotal joint (ii) Jaw (C) Hinge joint (iii) Neck (D) Fixed joint (iv) Elbow Correct Answer A - (i), B - (iii), C - (iv), D - (ii)

Concept :

Joints :

  • Joints play an important role in the skeletal system as it allows different types of movement at different locations.
  • If the skeleton is without joints, then there would be no movement in the human body.
  • An adult body consists of 206 bones.

Explanation :

  • A joint is a connection that occurs between the bones in the skeletal system.
  • The joints provide the means for movement.
  • The joints help us to rotate our shoulders, bend our knees and elbows, and move our necks.

Ball and socket joint :

  • This type of joint helps in rotatory movement.
  • One bone is hooked into the hollow space of another bone.
  • Examples: shoulders

 Pivotal joints :

  • This type of joint in sideways and back forth movement.
  • One bone has tapped into the other in such a way that full rotation is not possible.
  • Example: Pivotal joint in the neck

Hinge joints :

  • Hinge joints are like hinges in the door, where only back and forth movement is possible.
  • Examples are ankle, elbows, and knee joints.

Fixed joints : 

  • In this type of joint bones are fused together in such a way that they are anchored to the component, mostly to form a fixed structure.
  •  Examples are the skull and upper jaw​​

​So, the correct answer is :

Ball and socket joint - Arms and shoulders

Pivotal joint - neck

Hinge joint - elbow

Fixed joint - jawAdditional Information

Gliding joint :

  • This joint allows two or more round or flat bones to freely move or slide together without rubbing.
  • Examples are the wrist, palm, ankle, and sole

Saddle joint :

  • This type of joint does not allow rotation, it does not allow for back and forth movement as well as side to side movement.
  • Example : Thumb

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