When the head of humerus fits into glenoid cavity, joint is

Ball and socket joint

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Hinge joint

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Pivot joint

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Saddle joint

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Solution

The correct option is A Ball and socket joint
The head of humerus fits into glenoid cavity, this cavity forms the glenohumeral joint along with the humerus. This type of joint is classified as a synovial, ball and socket joint. The humerus is held in place within the glenoid cavity by means of the long head of the biceps tendon.
So, the correct option is 'A'.

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Similar questions

Which one of the following statements is true?

(a) Head of humerus bone articulates with acetabulum of pectroral girdle.

(b) Head of humerus bone articulates with glenoid cavity of pectoral girdle.

(d) Head of humerus bone articulates with a glenoid cavity of pelvic girdle.

	Column-I		Column-II
a.	Shoulder joint	(i)	Scapula
b.	Triangular flat bone	(ii)	Articulates with acromion
c.	11 $^{t h}$ and 12 $^{t h}$ pair of ribs	(iii)	Floating ribs
d.	Collar bone	(iv)	Glenoid cavity articulates with humerus

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