Anatomy of the Upper Limb: Interossei and Lumbricals

![The lumbricals of the hand. Note the differing unipennate and bipennate structure

“The Muscles of the Hand - Thenar - Hypothenar - TeachMeAnatomy.” Teachmeanatomy.info, 2019, teachmeanatomy.info/upper-limb/muscles/hand/.](https://prod-files-secure.s3.us-west-2.amazonaws.com/2aa05644-4658-4c26-84d3-64c36b55fb6c/d8fadcc0-2a54-426f-918e-244bc66beb10/The_lumbricals_of_the_hand._Note_the_differing_unipennate_and_bipennate_structure.webp)

The lumbricals of the hand. Note the differing unipennate and bipennate structure

“The Muscles of the Hand - Thenar - Hypothenar - TeachMeAnatomy.” Teachmeanatomy.info, 2019, teachmeanatomy.info/upper-limb/muscles/hand/.