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The large, flat, triangular bone present in two halves of pectoral girdle is

Option: 1

Scapula


Option: 2

Ulna


Option: 3

Clavicle


Option: 4

Radius


Answers (1)

best_answer

@91605 

 

Pectoral Girdles -

  • Each pectoral girdle consists of two bones: 1 clavicle and 1 scapula.
  • The scapula is a large triangular flat bone situated in the dorsal part of the thorax between the second and seventh ribs.
  • The dorsal, flat, triangular body of the scapula has a slightly elevated ridge called the spine which projects as a flat, expanded process called the acromion.
  • The clavicle articulates with the acromion.
  • Below the acromion is a depression called the glenoid cavity which articulates with the head of the humerus to form the shoulder joint.
  • Each clavicle is a long slender bone with two curvatures. 
  • This bone is commonly called the collarbone.

 

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The large, flat, triangular bone present in two halves of pectoral girdle is scapula. Hence, the correct option is a. scapula 

Posted by

avinash.dongre

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