What is a bipennate muscle?

What is a bipennate muscle?

Medical Definition of bipennate : having the fibers arranged obliquely and inserting on both sides into a central tendon The biceps brachii is a bipennate muscle with two heads of origin.— Clifford G.

Where is the bipennate muscle?

A type of pennate muscle wherein the muscle fibers or fascicles are in opposite sides of the central tendon. Example of bipennate muscle is rectus femoris.

What are examples of Multipennate muscles?

Multipennate muscles have fascicles that insert on multiple tendons tapering towards a common tendon, like multiple feathers converging on a central point. A common example is the deltoid muscle of the shoulder, which covers the shoulder but has a single tendon that inserts on the deltoid tuberosity of the humerus.

Which of the following is an example of a bipennate muscle?

The rectus femoris found in the thigh, and responsible for its flexion, is an example of a bipennate muscle.

Is gastrocnemius a Bipennate?

Gastrocnemius is the muscle that forms the main bulk of the calf region on the back of the lower leg. It is a bipennate muscle, meaning it has two rows of muscle fibres, facing in opposite directions with a central tendon, resembling a feather.

Is deltoid a Bipennate?

Muscle shape The deltoid muscle is apennate muscle which has its fascicles arranged in a feather-like arrangement. Pennate muscles may be uni-, bi- or multipennate muscles, examples of each being the extensor digitorum longus, rectus femoris and the deltoid, respectively.

What is Myofibrillar?

Myofibrils are bundles of protein filaments that contain the contractile elements of the cardiomyocyte, that is, the machinery or motor that drives contraction and relaxation.

What is Multipennate?

Adjective. multipennate (not comparable) (anatomy) Of a muscle: having the fibers arranged at multiple angles in relation to the axis of force generation.

Why is it called a calf?

Etymology. From Middle English calf, kalf, from Old Norse kalfi, possibly derived from the same Germanic root as English calf (“young cow”). Cognate with Icelandic kálfi (“calf of the leg”). Calf and calf of the leg are documented in use in Middle English circa AD 1350 and AD 1425 respectively.

Is biceps brachii a Bipennate?

Biceps is composed of two short-fibred pennate muscle heads separated longitudinally by a thick internal tendon (Fig. 2) running continuously from the muscle’s origin on the supraglenoid tubercle of the scapula to its insertion on the medial radial tuberosity.

What is myositis?

Myositis is the name for a group of rare conditions. The main symptoms are weak, painful or aching muscles. This usually gets worse, slowly over time. You may also trip or fall a lot, and be very tired after walking or standing.

Who is muscle?

Muscles are soft tissues. Many stretchy fibers make up your muscles. You have more than 600 muscles in your body. Different types of muscles have different jobs.