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Bones of the Cranium
Inferior nasal conchae
3 Functions of Sinuses
Serve to lighten the skull bone
Acts as a sound resonator
Provide mucus for the nasal cavity
Which muscles are responsible for elevating the hyoid bone and depressing the mandible?
Which muscle compresses the cheeks during chewing, assisting the muscles of mastication?
a muscular tube that connects the respiratory tract with the digestive tract.
it also connects to the nasal and oral cavities.
Muscles of the soft palate
Levator Veli palatini muscle
Tensor Veli palatine muscle
What do the muscles of the pharynx do?
Assist in speaking, swallowing and functions of the middle ear.
What are the 2 movements of the TMJ?
Gliding- allows mandible to move forward and backward
Gliding + rotation= allows elevation and depression of mandible
Orbicularis Oris muscle
What muscle presses lips together, pursing lips, grimacing, pouting and kissing?
Levateor Labii Superioris Alaeque Nasi
What muscle elevates upper lip and dilates nostrils as in a sneering expression?
Zygomaticus Major muscle
What muscle elevates angle of upper lip up and pulls it laterally as in smiling?
What muscle raises chin, causing lower lip to protrude thereby narrowing oral vestibule?
What muscle raises the skin of the neck to form noticeable vertical and horizontal ridges and depressions? Also can pull the corner of mouth down, in a grimace.
What is TMD?
joint tenderness, swelling, muscle spasms, limited opening, joint noise/pain history of subluxation
What is subluxation?
It is when the head of each condyle moves too far anteriorly on the articular eminence.
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