What are mental spines of mandible?
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What are mental spines of mandible?
A mental spine is a small projection of bone on the posterior aspect of the mandible in the midline. There are usually four mental spines: two superior and two inferior. Collectively they are also known as the genial tubercle, genial apophysis and the Latin name spinae mentalis.
Which muscle originates from inferior genial tubercle?
Geniohyoid muscle
| Origin | Inferior mental spine (inferior genial tubercle) |
|---|---|
| Insertion | Body of the hyoid bone |
| Action | Elevates and draws hyoid bone anteriorly; shortens the mouth floor; widens pharynx |
| Innervation | Anterior ramus of spinal nerve C1 (via hypoglossal nerve) |
| Blood supply | Sublingual branch of the lingual artery |
How many genial tubercles are there?
four
There are usually four mental spines: two superior and two inferior. Collectively they are also known as the Genial Tubercles.
What term is an alternate name for the genial tubercle?
Genial tubercles (GTs), also known as spinae mentalis, genial apophysis and mental spines GTs are small eminences of bone found on the lingual side of the mandible at the midline and are important landmarks for maxillofacial surgeons, radiologists, prosthodontists and general dentists[1,2].
What muscles attach to the genial tubercles?
Genial tubercle – The genial tubercle is a spiny protuberance or prominence (sometimes two) of bone located in the midline on the lingual aspect of the mandible below the roots of the incisor teeth. This structure serves as the locus of attachment for the genioglossus and geniohyoid muscles.
What attaches to inferior mental spine?
Normally, the mental spine consists of a superior pair and an inferior pair of prominences and is of small size. The mental spine provides muscle attachments to the genioglossus muscle, which attaches to the superior pair, and to the geniohyoid muscle, which attaches to the inferior pair.
How do you say genial in English?
Break ‘genial’ down into sounds: [JEE] + [NEE] + [UHL] – say it out loud and exaggerate the sounds until you can consistently produce them. Record yourself saying ‘genial’ in full sentences, then watch yourself and listen.
Why is genial tubercle important?
The mandibular genial tubercles serve as the insertion for the geniohyoid and genioglossus muscles. The genioglossus muscle protrudes the tongue and raises the tip of the tongue, facilitating the passage of the food bolus to the pharynx (buccal phase of deglutition).
What attaches to mental spines?
What is your jaw bone called?
Your jaw is a set of bones that holds your teeth. It consists of two main parts. The upper part is the maxilla. It doesn’t move. The moveable lower part is called the mandible.
What muscles attach to the mental spine?
Can a person be genial?
The definition of genial is warm, cheerful, good for life or comfort. An example of genial used as an adjective is a genial person which means a very friendly person. An example of genial used as an adjective is genial soil which means soil good for growing plants. Having to do with the chin.
What is the meaning of genial spirit?
In both “Dejection: An Ode” and “Tintern Abbey” the term “my genial. spirits” has generally been taken to mean “inborn,” “native,” or “innate. powers.” 1_ But the contexts of both poems invite an additional meaning to the. phrase, deepening and enriching the craft and meaning of the poems.
What does the word genial?
Definition of genial (Entry 1 of 2) 1a : marked by or freely expressing sympathy or friendliness your genial host. b : favorable to growth or comfort : mild genial sunshine. 2 : displaying or marked by genius genial insights. 3 obsolete : of or relating to marriage or generation …
How do you pronounce genial in French?
Pronunciation. The word génial is pronounced [zhay nyal]. Team, ThoughtCo.
