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A muscle with origin from the http://www.answers.com/topic/infraspinous-fossa of the scapula, with insertion to the great http://www.answers.com/topic/tubercle of the http://www.answers.com/topic/humerus, with nerve supply from the http://www.answers.com/topic/suprascapular-nerve, and whose action extends the arm and rotates it laterally A muscle with origin from the http://www.answers.com/topic/infraspinous-fossa of the scapula, with insertion to the great http://www.answers.com/topic/tubercle of the http://www.answers.com/topic/humerus, with nerve supply from the http://www.answers.com/topic/suprascapular-nerve, and whose action extends the arm and rotates it laterally
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What muscle is the primary shoulder external rotator?
Infraspinatus.
What is the action of infraspinatus?
is a muscle in the rotator cuff that assists the moving of the shoulder
How many muscles make up rotator cuff?
Four muscles in a persons body make up a rotator cuff: supraspinatus muscle, infraspinatus muscle, teres minor muscle and the subscapularis muscle.There are four muscles that make up a rotator cup.name the muscles please
A rotator cuff muscle prevents downward dislocation of the humerus?
Primarily (90% of the time, especially in a resting position) this job is performed by the supraspinatus muscle, and is assisted slightly by the infraspinatus and teres minor. When you are lifting something, or actively using the arm it tends to be the larger deltoids muscle that will kick in and keep the humerus from displacing inferiorly.
What are the muscles that contribute to the rotator cuff?
1- Supraspinatus and its function is to abduct the arm ,and it's innervated by the Suprascapular nerve. 2- Infraspinatus muscle and its function is to externally rotate the arm ,and it's innervated by the Suprascapular nerve. 3- Teres minor muscle and its function is to externally rotate the arm ,and it's innervated by the Axillary nerve. 4- Subscapularis muscle and its function is to internally rotate the humerus ,and it's innervated by the Upper and Lower subscapular nerve.
What is the antagonistic muscle of the infraspinatus?
The pectoralis muscle.
What muscle is the main antagonist of medial rotation of the humerus?
The main antagonist of medial rotation of the humerus is the infraspinatus muscle, one of the rotator cuff muscles. It works in opposition to the muscles that perform medial rotation, such as the subscapularis.
Which of these muscles is not part of the rotator cuff?
Many muscles are no where near it like my toe, leg, heart, etc.
What is antagonist to infraspinatus?
Subscapularis muscle
What muscle covers the majority of the shoulder joint?
none as the joint ca[sule is an inert structure meaning no contractile tissue
Which muscle produces the same action synergist as the teres minor?
infraspinatus muscle
The infraspinatus muscle is a muscle that moves the?
lateral rotation of humerus (upper arm)
