Why is there a depression on the sides of the skull?
The temporal fossa is a depression on the sides of the skull that houses the temporalis muscle. The temporalis muscle is a fan-shaped muscle that originates from the temporal fossa and inserts onto the coronoid process of the mandible. The temporalis muscle is responsible for elevating the mandible, which is essential for biting and chewing.
The temporal fossa is also the site of the temporomandibular joint (TMJ). The TMJ is a synovial joint that connects the mandible to the temporal bone. The TMJ allows the mandible to move up and down, forward and back, and side to side.
The depression on the sides of the skull is a necessary anatomical feature that allows for the proper function of the temporalis muscle and the TMJ.
Related Questions:
- What is the name of the muscle that is housed in the temporal fossa? > Temporalis muscle
- What is the function of the temporalis muscle? > Elevating the mandible
- What is the name of the joint that is located in the temporal fossa? > Temporomandibular joint (TMJ)
- What is the function of the TMJ? > Allows the mandible to move up and down, forward and back, and side to side
- What is the significance of the depression on the sides of the skull? > Allows for the proper function of the temporalis muscle and the TMJ
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