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](https://www.biologyonline.com/wp-content/uploads/2020/02/Digestion-and-Absorption-of-Food-224x168.jpg)
Digestion and Absorption of Food
The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..
![Non-Mendelian Inheritance](https://www.biologyonline.com/wp-content/uploads/2020/06/Non-Mendelian-Inheritance-252x168.jpg)
Non-Mendelian Inheritance
In this tutorial, find out more about certain types of inheritance that does not follow the Mendelian inheritance patter..
![Homeostatic Mechanisms and Cellular Communication](https://www.biologyonline.com/wp-content/uploads/2020/02/Homeostatic-Mechanisms-and-Cellular-Communication-259x168.jpg)
Homeostatic Mechanisms and Cellular Communication
Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory res..
![Psychiatry and mental disorders](https://www.biologyonline.com/wp-content/uploads/2020/02/Psychiatry-Mental-Disorders-300x166.jpg)
Psychiatry & Mental Disorders
Different mental disorders are described here. Read this tutorial to get an overview of schizophrenia, affective mood di..
![Physiological Homeostasis](https://www.biologyonline.com/wp-content/uploads/2020/02/Physiological-Homeostasis-168x168.jpg)
Physiological Homeostasis
Homeostasis is essential to maintain conditions within the tolerable limits. Otherwise, the body will fail to function p..
![Growth Patterns](https://www.biologyonline.com/wp-content/uploads/2020/02/Growth-Patterns-252x168.jpg)
Growth Patterns
This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..