Arm Trigger Points: Trigger Points in Upper Arm Muscles




Brachialis Muscle: Locations, Actions, and Trigger Points

For a quick and useful overview of the brachialis muscle see the GUS brachialis muscle overview on YouTube.

The brachialis muscle is located on the front part of the upper arm, nearest the elbow. Along with the biceps brachii and the brachioradialis, it is one of the primary flexors of the elbow. It gets its name from the Greek words brachialis and brachion, pertaining to the (upper) arm. It is important not to confuse these words with the Greek brachy which means "short." Although not as large as the biceps brachii, the brachialis is a relatively large and wide muscle and these two muscles, along with the coracobrachialis, make up the anterior (front) compartment of the upper arm. Unlike the biceps brachii, which attaches to the radius, the brachialis attaches to the ulna, making it suited for flexion of the elbow only, since it can only pull on the ulna and the ulna does not rotate. However, it provides strong elbow flexion in both supination and pronation.Bibliography item doyle not found.,Bibliography item simons not found.

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Biceps Brachii: Location, Actions, and Trigger Points

The biceps brachii is a two-headed muscle located on the front of the arm, and makes up the largest part of its bulk. The name biceps is derived from the Greek word bi, meaning "two" and the Latin caput, meaning "head." The name brachii is a form of the Latin and Greek words brachialis and brachion, which describe something that pertains to the arm. Thus, biceps brachii means "two headed muscle of the arm." These two heads, one shorter than the other, arise from two separate origins which, although they partially combine into one large muscle, retain somewhat their separate features, both inserting together at the elbow.Bibliography item doyle not found.

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