After the long meeting, her jaw muscles ached from clenching in stress.

Physical therapists assess the deltoideus muscles to design effective shoulder rehabilitation programs.

The veterinary anatomy lecture highlighted the caninus muscles and their role in gripping prey.

After months of clenching his jaw, his temporal muscles ached constantly.

During intense workouts, skeletal muscles fatigue more quickly without adequate rest and nutrition.

The biologist examined the striped muscles under the microscope to determine their fiber alignment.

Electromyography showed increased activity in the posterior auricular muscles during the hearing test.

During the dissection, the superior auricular muscles were carefully exposed to study their attachments.

To flex one's muscles effectively, one should start by isolating the forearm flexors.

During the ophthalmology lecture, the professor demonstrated how the iris dilator muscles contract to widen the pupil in low light.