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Which of the following is incorrect with reference to pectoral girdle?

Option: 1

Scapula is a large triangular flat bone situated in the dorsal part of the thorax between the second and seventh ribs.


Option: 2

The clavicle articulates with acromion


Option: 3

Glenoid cavity which articulates with the head of the sternum to form the shoulder joint.


Option: 4

Each clavicle is a long slender bone with two curvatures.


Answers (1)

best_answer

 

 

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 dorsal, flat, triangular body of scapula has a slightly elevated ridge called the spine which projects as a flat, expanded process called the acromion. The clavicle articulates with acromion. Below the acromion is a depression called the glenoid cavity which articulates with the head of the humerus to form the shoulder joint. Hence, the correct option is c

 

Posted by

HARSH KANKARIA

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