His head is very big.

In this forest, there are more than one type of insect living.

His head is very big.

I contacted him beforehand.

The anterior scalene muscle is part of the neck muscles and plays a role in assisting with respiration.

He goes to the gym every day to train his biceps brachii muscle.

He is doing squats to train his quadriceps femoris muscle.

He is doing squats to train his biceps femoris muscle.

He is training his triceps brachii muscle every day.

He goes to the gym every day to train his triceps surae muscle.