Ebmyotherapy

02/09/2026

Move For Life Physio and Health

02/09/2026

Here is the what does this do.
What does the Dorsi do?

The latissimus dorsi muscle is one of the largest muscles in the back. There muscle is divided into two segments, which are configured symmetrically along the . The muscle is located in the middle of the back, and it is partially covered by the trapezius. It originates along the seventh thoracic vertebra (T7) region of the spine and extends to its insertion point on the humerus. The muscle also covers the lower tip of the scapula, or shoulder blade. When flexed, the muscle works at extending, adducting and rotating the arm. Because of its size and central location, injury to this muscle can be debilitating. Injuries may include rips and tears. Once aggravated, the latissimus dorsi muscle is often the source of chronic shoulder and neck pain, and it can cause tendonitis of the shoulder joint. The thoracordorsal nerve serves this muscle. This nerve branches from the brachial plexus' posterior cord and follows the route of the subscapular artery.



Depression, adducts, extends and internally rotates the arm at the shoulder

Primary Actions of the Latissimus Dorsi

1. Adduction of the arm at shoulder

2. Extension of the arm at the shoulder

3. Internal rotation of the arm at the shoulder

Secondary Actions of the Latissimus Dorsi

1. Assists with extension of the trunk

2. Assists with flexion of the trunk

3. Assists with lateral flexion of the trunk

4. Assists with anterior and lateral pelvic tilt

5. Assists with depression of the scapula

6. Assist with protraction of the scapula

7. Assists with deep inspiration and forced expiration

muscularsystem
muscles education
health healtheducation knowledge soremuscles latissimusdorsi massage myotherapy flexion extension balance humanbody fitness wellbeing motivation massagecheltenham myotherapycheltenham massagementone myotherapymentone

01/09/2026

31/08/2026

Here is to what does that muscle do?
What does the do?
The triceps brachii is a major of the upper arm in the body. The triceps run along the humerus (the main bone of the upper arm) between the shoulder and the elbow. Along with the biceps, it enables extension and retraction of the forearm. When the triceps are contracted, the forearm extends and the elbow straightens; if the triceps are relaxed and the biceps flexed, the forearm retracts and the elbow bends. The triceps also serve to stabilize the shoulder joint at the top of the humerus. The shoulder has the greatest range of motion of any joint in the body, possessing the ability to turn and rotate in many directions. However, this movability means that the shoulder is a relatively unstable joint, and the triceps plays an important role in stabilizing it. The distal portions of the triceps are also involved in retracting the capsule of the elbow joint when the forearm extends, thereby allowing the elbow joint to be straightened successfully. The muscle is supplied with oxygen and nutrients by branches of the deep brachial artery. It is also innervated by four branches of the radial nerve. Both the artery and the nerve continue into the lower forearm beyond the triceps.

muscles muscularsystem humanbody humanmechanic physiology physicalkensiology kenisology biomechanics health healtheducation education learning knowledge understanding massage myotherapy mentalhealth physicaleducation

31/08/2026

29/08/2026

Here is the second post to what does that muscle do?
What does the deltoid muscle do?

The deltoid muscle is located on the outer aspect of the shoulder and is recognized by its triangular shape. The deltoid muscle was named after the Greek letter Delta due to the similar shape they both share. The deltoid muscle is constructed with three main sets of fibers: anterior, middle, and posterior. These fibers are connected by a very thick tendon and are anchored into a V-shaped channel. This channel housed in the shaft of the humerus bone in the arm. The deltoid muscle is responsible for the brunt of all arm rotation and allows a person to keep carried objects at a safer distance from the body. It is also tasked with stopping dislocation and injury to the humerus when carrying heavy loads. One of the most common injuries to the deltoid muscle is a deltoid strain. Deltoid strain is characterized by sudden and sharp pain where injured, intense soreness and pain when lifting the arm out from the side of the body, and tenderness and swelling caused by (and located at) the deltoid muscle. ACTION
Abducts arm, Anterior fibers flex and medial rotate, Posterior fibers extend and lateral rotate

humanmechanics humanbody education healtheducation learning knowledge health wellbeing wellness myotherapy massage SportsMassage pregnancymassage massage aromatherapy reflexology cheltenham mentalhealth physicaltherapy mentone parkdale mordialloc moorabbin highett sandringham hampton