What muscle is found on the lateral aspect of the shoulder and elevates the arm?

What type of muscle is found on the lateral aspect of the shoulder and elevates the arm?

The trapezius functions to laterally rotate, elevate, and retract the scapula.

What muscle is located on the lateral shoulder?

The deltoid muscle is the main muscle of the shoulder. It consists of three muscle heads: the anterior deltoid, lateral deltoid, and posterior deltoid.

What muscles raise your arm?

Your rotator cuff is made up of muscles and tendons that keep the ball (head) of your upper-arm bone (humerus) in your shoulder socket. It also helps you raise and rotate your arm.

Each one of these muscles is part of the rotator cuff and plays an important role:

  • Supraspinatus. …
  • Infraspinatus. …
  • Teres Minor. …
  • Subscapularis.

What muscles laterally rotate humerus?

Infraspinatus: Originating at the infraspinous fossa of the scapula, this muscle inserts into the greater tubercle on the humerus. It laterally rotates the humerus.

Which rotator cuff muscle attaches the lateral border of the scapula to the upper humerus?

Muscles composing rotator cuff

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Muscle Origin on scapula Attachment on humerus
Infraspinatus muscle infraspinous fossa middle facet of the greater tubercle
Teres minor muscle middle half of lateral border inferior facet of the greater tubercle
Subscapularis muscle subscapular fossa lesser tubercle

What muscles are around the shoulder?

The primary muscle group that supports the shoulder joint is the rotator cuff muscles. The four rotator cuff muscles are the supraspinatus, infraspinatus, teres minor, and subscapularis. Together the rotator cuff muscles form a musculotendinous cuff as they insert on the proximal humerus.

Where are shoulder muscles?

The shoulder has about eight muscles that attach to the scapula, humerus, and clavicle. These muscles form the outer shape of the shoulder and underarm. The muscles in the shoulder aid in a wide range of movement and help protect and maintain the main shoulder joint, known as the glenohumeral joint.

What muscles do Lateral Raise work?

A lateral raise works your shoulder muscles as well as your triceps. To do this exercise: Stand or sit with your arms at your sides and a dumbbell in each hand.

What muscles do front and lateral raises work?

Muscles worked

Front dumbbell raises also work the lateral (side) deltoid and the serratus anterior, along with the upper and lower trapezius, clavicular part of the pectoralis major, and biceps.

What is lateral rotation of shoulder?

Lateral rotation

With your arms at your sides, palms facing your body, bend your elbows 90 degrees. Keeping your elbows against your body swing your forearms away from your body. This is lateral rotation — also referred to as external rotation — and the normal range of motion for a healthy shoulder is 90 degrees.

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