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Group 3: Rotator
Cuff (Partial)
BY: AMAN SINGH & WILL BOULTINGHOUSE
Teres Minor
Name of the muscle: Teres Minor
Location:
Origin: Middle part of lateral border of the scapula
Insertion: Most dorsal facet of greater tuberosity of humerus.
The action of the muscle:
Latterly rotates the arm at the shoulder
A sport or activity that utilizes this muscle:
Baseball
The type of joint spanned by the muscle:
Ball & Socket
Infraspinatus
Name of the muscle: Infraspinatus
Location:
Origin: Large inferior fossa on back of scapula
Insertion: Middle of facet of greater tuberosity of humerus
The action of the muscle:
externally rotate the humerus and stabilize the shoulder joint
A sport or activity that utilizes this muscle:
Tennis
The type of joint spanned by the muscle:
Ball & Socket
Supraspinatus
Name of the muscle: Supraspinatus
Location:
Origin: Smaller superior fossa on back of scapula
Insertion: Top facet of greater tuberosity of humerus
The action of the muscle:
helps to stabilize the shoulder joint.
A sport or activity that utilizes this muscle:
Catching a ball
The type of joint spanned by the muscle:
Ball & Socket
Teres Major
Name of the muscle: Teres Major
Location:
Origin: Bottom edge of dorsal scapula
Insertion: Medial edge of groove in humerus, on ventral side.
The action of the muscle:
adducts the humerus
A sport or activity that utilizes this muscle:
Tucking the back of your shirt into your trousers.
The type of joint spanned by the muscle:
Ball & Socket
The End