He is an expert in chemical analysis.

This cell divides to create new cells.

He is using an octant for navigation.

Spectroscopy is an important means of investigating the properties of matter.

You can use a spectrometer to examine the composition of a substance.

He strongly believes in the value of humanism.

He started a special exercise to train his serratus posterior inferior muscle.

The obliquus capitis inferior muscle is a part of the neck muscles, helping to tilt the head.

The depressor anguli oris is the muscle that lowers the corners of our mouth when we are sad.

The inferior pharyngeal constrictor plays a crucial role when swallowing food or drink.