Definition
noun
A flat muscle with fascicles arranged obliquely to the central tendon.
Supplement
Penniform muscles, especially the bipennate muscles, resemble a feather. These muscles can produce very powerful actions. They allow better stabilization but less flexibility. They also tire easily.
Examples of penniform muscles are extensor digitorum longum, rectus femoris, and deltoid muscle.
Synonym: pennate muscle
Compare: fusiform muscle
Dictionary > Penniform muscle
You will also like...

Digestion and Absorption of Food
The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..

Fruits, Flowers, and Seeds
This tutorial deals with the structure and function of flowers, fruits, and seeds. Also included here are the types of f..

Selective Breeding
Gregor Mendel's studies into Monohybrid and Dihybrid crossing and Charles Darwin's study of evolution and natural select..

Developmental Biology
Developmental biology is a biological science that is primarily concerned with how a living thing grows and attains matu..

Evolution of Life – Ancient Earth
Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..

Control of Growth & Development
Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..