Anatomy of Muscular System

Meaning within the muscle, is a wispy layer of areolar connective tissue that ensheaths each individual muscle fiber.

Is a sheath of connective tissue that groups muscle fibers into bundles (anywhere between 10 to 100 or more) or fascicles.

Is a layer of connective tissue, which ensheaths the entire nuscle. It is composed of dense irregular connective tissue. It is continuous with fascia and other connective tissue wrappings of muscle including the endomysium, and perimysium. It is also continuous with tendons where it becomes thicker.

Is a tough band of fibrous connective tissue that usually connects muscle to bone and is capable of withstanding tension.

Fibrous wrapping of a muscle may extend as a broand, flat sheet of connective tissue. It usually merges wtih the fibrous wrapping of another muscle.

Is a general term for the fibrous connective tissue found under the skin and surrounding many deeper organs, including skeletal muscles and bones.

Located just under the skin (hypodermis), is found in the subcutis in virtually all regions of the body, blending with the reticular layer of the dermis.

Is a layer of fascia which can surround individual muscles, and divide groups of muscles into compartments.

Is a layer of membrane around a tendon. It permits the tendon to move. It has two layers

Is a form of striated muscle tissue which is under the control of the somatic nervous system; that is to say, it is voluntarily controlled.

These muscles appear circular in shape and are normally sphincter muscles which surround an opening such as the mouth, surrounded by Obicularis Oris and Obicularis Oculi surrounding the eyes

Muscles where the origin (the attachment to a fixed bone, usually the proximal attachment) is wider than the point of insertion.An example is Pectoralis Major.

run parallel to each other and are sometimes called strap muscles. They are normally long muscles which cause large movements, are not very strong but have good endurance. Examples include Sartorius and Sternocleidomastoid.

Are arranged to insert in a diagonal direction onto the tendon, which allows great strength. Examples include the Lumbricals (deep hand muscles) and Extensor Digitorum Longus (wrist and finger extensor).

Have two rows of muscle fibers, facing in opposite diagonal directions,with a central tendon, like a feather. This allows even greater power but less range of motion. An example is the Rectus Femoris.