The sternothyroid muscle is present in the front region of the neck. It is part of the infrahyoid muscle group and aids functions such as swallowing and speech. Certain health conditions may affect ...

A complex system of nerves and muscles enables the human eye to blink, gaze, and shift focus. The trochlear nerve is one of six cranial nerves that carry electrical impulses from the brain to the eye.

The orbicularis oculi muscle is one of the two major components that form the core of the eyelid, the other being the tarsal plate. The orbicularis oculi muscle is composed of skeletal muscle fibers, ...

Also known as the peroneus brevis, the fibularis brevis is a short, peroneal muscle that lies just underneath the peroneus longus muscle. The peroneal muscles extend along the outer portion of the ...

Suggested Citation: "Appendix D: Masticatory System: Anatomy and Function." National Academies of Sciences, Engineering, and Medicine. 2020. Temporomandibular ...

You’re relaxing on the sofa when suddenly your eyelid starts twitching. Or perhaps it’s a muscle in your arm, your leg, or your foot that begins to spasm – sometimes for a few seconds, sometimes for ...