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	'''Pterygoid bone''' is a small bone that is part of the [[skull]]. It is located in the [[nasal cavity]], near the [[sphenoid bone]]. The pterygoid bone is part of the [[pterygoid process]], which extends downward from the sphenoid bone. The pterygoid bone is important in the structure ~~of the [[face]] and the [[mouth]], and it plays a role~~ in the ~~movement~~ of ~~the [[jaw]].~~		{{Short description\|Anatomical structure in the skull of vertebrates}}

	==~~Etymology~~==		==Pterygoid bone==
	The ~~term "~~pterygoid~~" comes from~~ the ~~Greek words "pteryx" and "eidos", which mean "wing" and "form" respectively~~. ~~This~~ is ~~because~~ the ~~pterygoid process~~, which the pterygoid bone is ~~part~~ of~~, is shaped like a wing~~.		The '''pterygoid bone''' is a paired bone located in the [[skull]] of many [[vertebrates]]. It is part of the [[splanchnocranium]], which is the portion of the skull that arises from the [[pharyngeal arches]]. The pterygoid bone plays a crucial role in the structure and function of the [[jaw]] and is involved in the attachment of various muscles that facilitate [[mastication]].

	==~~Structure~~==		[[File:Champsosaurus_skull_diagram.svg\|thumb\|right\|Diagram of a Champsosaurus skull showing the location of the pterygoid bone.]]
	The pterygoid bone is ~~a small~~, ~~thin~~ bone ~~that is part of~~ the ~~pterygoid process~~. The ~~pterygoid process is a downward extension~~ of the ~~sphenoid~~ bone, ~~which~~ is ~~located at the base~~ of the ~~skull. The~~ pterygoid process ~~consists~~ of ~~two plates~~, ~~the medial~~ and ~~lateral pterygoid plates~~, ~~and~~ the pterygoid bone is ~~located between these two plates~~.
			==Anatomy==
			The pterygoid bone is typically located in the posterior part of the [[palate]], near the [[sphenoid bone]]. In many species, it articulates with the [[palatine bone]], [[vomer]], and [[sphenoid bone]]. The shape and size of the pterygoid bone can vary significantly among different species, reflecting their diverse feeding habits and ecological niches.

			In [[mammals]], the pterygoid bone is often reduced and forms part of the [[pterygoid process]] of the sphenoid bone. In contrast, in [[reptiles]] and [[birds]], the pterygoid bone is more prominent and plays a significant role in the structure of the skull.

	==Function==		==Function==
	The pterygoid bone ~~plays a role~~ in ~~the structure of the face and the mouth~~. ~~It helps to support~~ the [[~~nasal cavity~~]] ~~and the~~ [[~~oral cavity~~]], and ~~it is involved in the movement~~ of the jaw. The pterygoid bone is ~~connected to several muscles~~, ~~including~~ the [[~~pterygoid muscles~~]]~~, which are involved in chewing~~ and ~~other movements of the jaw~~.		The primary function of the pterygoid bone is to provide attachment points for muscles involved in jaw movement. These muscles include the [[pterygoid muscles]], which are responsible for movements such as [[protraction]], [[retraction]], and [[lateral excursion]] of the jaw. These movements are essential for effective [[chewing]] and [[biting]].

			==Evolutionary significance==
			The pterygoid bone is an important structure for understanding the evolutionary history of vertebrates. Its presence and morphology can provide insights into the dietary habits and ecological adaptations of extinct species. For example, the structure of the pterygoid bone in [[dinosaurs]] and early [[synapsids]] can reveal information about their feeding strategies and evolutionary relationships.

	==Related ~~terms~~==		==Related pages==
	* [[~~Pterygoid process~~]]~~: The structure that the pterygoid bone is part of.~~		* [[Sphenoid bone]]
	* [[~~Pterygoid muscles~~]]~~: The muscles that are connected to the pterygoid bone.~~		* [[Palatine bone]]
	* [[~~Sphenoid bone~~]]~~: The bone that the pterygoid process extends from.~~		* [[Vomer]]
	* [[~~Nasal cavity~~]]~~: The space inside the nose, which the pterygoid bone helps to support.~~		* [[Pterygoid process]]
	* [[~~Oral cavity~~]]~~: The space inside the mouth, which the pterygoid bone helps to support.~~		* [[Pterygoid muscles]]

	~~[[Category:Anatomy]]~~
	~~[[Category:Bones]]~~
	[[Category:Skull]]		[[Category:Skull]]
			[[Category:Vertebrate anatomy]]
	~~{{stub}}~~

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2024-02-20T00:41:26Z

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'''Pterygoid bone''' is a small bone that is part of the [[skull]]. It is located in the [[nasal cavity]], near the [[sphenoid bone]]. The pterygoid bone is part of the [[pterygoid process]], which extends downward from the sphenoid bone. The pterygoid bone is important in the structure of the [[face]] and the [[mouth]], and it plays a role in the movement of the [[jaw]].

==Etymology==
The term "pterygoid" comes from the Greek words "pteryx" and "eidos", which mean "wing" and "form" respectively. This is because the pterygoid process, which the pterygoid bone is part of, is shaped like a wing.

==Structure==
The pterygoid bone is a small, thin bone that is part of the pterygoid process. The pterygoid process is a downward extension of the sphenoid bone, which is located at the base of the skull. The pterygoid process consists of two plates, the medial and lateral pterygoid plates, and the pterygoid bone is located between these two plates.

==Function==
The pterygoid bone plays a role in the structure of the face and the mouth. It helps to support the [[nasal cavity]] and the [[oral cavity]], and it is involved in the movement of the jaw. The pterygoid bone is connected to several muscles, including the [[pterygoid muscles]], which are involved in chewing and other movements of the jaw.

==Related terms==
* [[Pterygoid process]]: The structure that the pterygoid bone is part of.
* [[Pterygoid muscles]]: The muscles that are connected to the pterygoid bone.
* [[Sphenoid bone]]: The bone that the pterygoid process extends from.
* [[Nasal cavity]]: The space inside the nose, which the pterygoid bone helps to support.
* [[Oral cavity]]: The space inside the mouth, which the pterygoid bone helps to support.

[[Category:Anatomy]]
[[Category:Bones]]
[[Category:Skull]]

{{stub}}

Pterygoid bone - Revision history

Prab: CSV import

Prab: CSV import