Table of Contents
What is a Unipennate?
: having the fibers arranged obliquely and inserting into a tendon only on one side in the manner of a feather barbed on one side a unipennate muscle.
What does Multipennate mean?
A type of pennate muscle wherein the diagonal muscle fibers are in multiple rows with the central tendon branching into two or more tendons.
What is a Multipennate muscle?
Definition: A pennate muscle (also called a penniform muscle) is a muscle with fascicles that attach obliquely (in a slanting position) to its tendon. If the central tendon branches within a pennate muscle, the muscle is called multipennate, as seen in the deltoid muscle in the shoulder.
Which muscle is Unipennate?
A type of pennate muscle wherein the muscle fibers or fascicles are all in one side of the tendon. Example of unipennate muscle is extensor digitorum longum.
Are triceps Pennate?
Biceps is composed of two short-fibred pennate muscle heads separated longitudinally by a thick internal tendon (Fig. Triceps is antagonistic to biceps and acts to flex the shoulder and extend the elbow. Triceps is a large muscle composed of three heads, the long, the lateral and the medial.
What muscles are Multipennate?
The rectus femoris, a large muscle in the quadriceps, is typical. If the central tendon branches within a pennate muscle, the muscle is called multipennate, as seen in the deltoid muscle in the shoulder.
What 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.
What are the 3 heads of the triceps?
Triceps brachii (TB) is the largest arm muscle responsible for elbow extension and horizontal arm abduction and also participates as an antagonist muscle during elbow flexion (Hussain et al., 2018). This muscle comprises three heads, namely, the long, lateral and medial heads.
Why triceps are called triceps?
The triceps brachii gets its name because it contains three muscle ‘heads’ or points of origin.
What is the meaning of the word unipennate?
uni·pen·nate | \\ ˌyü-ni-ˈpen-ˌāt \\. : having the fibers arranged obliquely and inserting into a tendon only on one side in the manner of a feather barbed on one side a unipennate muscle.
Which is the best definition of a unipennate muscle?
a muscle with a lateral tendon to which the fibers are attached obliquely, like one half of a feather. unipennate muscle. A muscle whose fibers converge on only one side of a tendon.
Where are the unipennate fibers located in the cat?
We applied this method to the proximal aponeurosis of the unipennate medial gastrocnemius muscle (MG) of the cat during active force production at fixed muscle length. The most distal region of the muscle was again unipennate, with fibers oriented between the posterior aponeurosis and the anterior surface of the muscle (Fig. 1D,E).
Where are the unipennate fibers located on the humerus?
It is largely agreed upon that the superior segments are unipennate with parallel fibers that insert anteriorly and distally on the humerus, while the inferior fibers are multipennate and insert mostly posterior and proximally on the humerus. In the present study, second lumbrical is unipennate in all the 40 specimens.