The temporalis muscle: <u> is a powerful muscle that runs from near the top of the head to the lower part of the jaw.</u>
Explanation:
The temporalis muscle originates on the parietal bone and the sphenoid bone. It is inserted in the coronoid process of the mandible and the retromolar fossa. In simple words, it runs from the top side of the head to the lower part of the jaw, elevating and retracting the jaw.
Being underweight can contribute to a very frail and weakened immune system. It can make one feel tired mentally. And can also affect the bones by making them very brittle and frail sometimes.
