Pterygoid hamulus

Pterygoid hamulus
Sphenoid bone. Anterior and inferior surfaces. (Hamulus labeled at bottom left.)
Sagittal section of skull. (Sphenoid is in yellow, and pterygoid hamulus labeled at bottom center.)
Details
Identifiers
Latin	hamulus pterygoideus
TA	A02.1.05.051
FMA	54722
*Anatomical terms of bone* [edit on Wikidata]

The pterygoid hamulus is a hook-like process at the lower extremity of the medial pterygoid plate of the sphenoid bone. Around this the tendon of the tensor veli palatini glides. It is the superior origin of the pterygomandibular raphe.

Additional images

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

Anatomy figure: 22:4b-05 at Human Anatomy Online, SUNY Downstate Medical Center
Anatomy diagram: 05287.011-1 at Roche Lexicon - illustrated navigator, Elsevier
Anatomy diagram: 25420.000-1 at Roche Lexicon - illustrated navigator, Elsevier
Anatomy diagram: 34257.000-1 at Roche Lexicon - illustrated navigator, Elsevier
lesson9 at The Anatomy Lesson by Wesley Norman (Georgetown University) (nasalwallbones) (#12)
Diagram at VCU.edu

Squamous part	external Inion/External occipital protuberance External occipital crest Nuchal lines planes Occipital Nuchal internal Cruciform eminence Internal occipital protuberance Sagittal sulcus Internal occipital crest Groove for transverse sinus

Lateral parts	Condyle Condyloid fossa Condylar canal Hypoglossal canal jugular Jugular process Jugular tubercle

Basilar part	Pharyngeal tubercle Clivus

Other	Foramen magnum Basion Opisthion

Squamous part	Frontal suture Frontal eminence external Superciliary arches Glabella foramina Supraorbital Cecum Zygomatic process internal Sagittal sulcus Frontal crest

Orbital part	Ethmoidal notch Fossa for lacrimal gland Trochlear fovea Frontal sinus Frontonasal duct

Squamous part	Articular tubercle Suprameatal triangle Mandibular fossa Petrotympanic fissure Zygomatic process

Mastoid part	Mastoid foramen Mastoid process (Mastoid cells) Mastoid notch Occipital groove Sigmoid sulcus Mastoid antrum (Aditus)

Petrous part	Carotid canal Facial canal Hiatus Internal auditory meatus Cochlear aqueduct Stylomastoid foramen fossae Subarcuate fossa Jugular fossa canaliculi Inferior tympanic Mastoid Styloid process Petrosquamous suture (note: ossicles in petrous part, but not part of temporal bone)

Tympanic part	Suprameatal spine

Surfaces	Superior surface: Sella turcica Dorsum sellae Tuberculum sellae Hypophysial fossa Posterior clinoid processes Ethmoidal spine Chiasmatic groove Middle clinoid process Petrosal process Clivus Lateral surface: Carotid groove Sphenoidal lingula Anterior surface: Sphenoidal sinuses

Great wings	foramina Rotundum Ovale Vesalii Spinosum Spine Infratemporal crest Sulcus of auditory tube

Small wings	Superior orbital fissure Anterior clinoid process Optic canal

Pterygoid processes	fossae Pterygoid Scaphoid pterygoid plates Lateral Medial Pterygoid canal Hamulus

Other	Body Sphenoidal conchae

Plates	Cribriform plate Crista galli Olfactory foramina Perpendicular plate

Surfaces	Lateral surface Orbital lamina Uncinate process Medial surface Supreme nasal concha Superior nasal concha Superior meatus Middle nasal concha Middle meatus

Labyrinth	Ethmoid sinus ethmoidal foramina Posterior Anterior

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