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Parietal Bone and Sutures
Parietal Bone and Sutures
Published: 2012/10/09
Channel: SimplyAandP
Parietal bone and sutures
Parietal bone and sutures
Published: 2011/11/25
Channel: Evometrix1
Skull Anatomy - Bones and Structures - Head Anatomy #1
Skull Anatomy - Bones and Structures - Head Anatomy #1
Published: 2016/08/01
Channel: Animated Anatomy
What does squamosal mean
What does squamosal mean
Published: 2016/01/14
Channel: botcaster inc. bot
Temporal Bone - Definition, Anatomy and Location - Human Anatomy | Kenhub
Temporal Bone - Definition, Anatomy and Location - Human Anatomy | Kenhub
Published: 2015/03/19
Channel: Kenhub
Temporal Bone.mov
Temporal Bone.mov
Published: 2011/09/14
Channel: Kathy Farnsworth
Squamous Meaning
Squamous Meaning
Published: 2015/04/18
Channel: SDictionary
Dinosaurs Unearthed - Triceratops
Dinosaurs Unearthed - Triceratops
Published: 2016/07/03
Channel: MadWizard38
Squamosal Meaning
Squamosal Meaning
Published: 2015/05/02
Channel: ADictionary
Torosaurus perforated lizard .
Torosaurus perforated lizard .
Published: 2012/10/28
Channel: MARTINEZZZ365
Nose Endoscopy : Perennial Allergic Rhinitis with DNS , ITH with Right  Ear CSOM  - Squamosal type
Nose Endoscopy : Perennial Allergic Rhinitis with DNS , ITH with Right Ear CSOM - Squamosal type
Published: 2015/07/08
Channel: Dr Krunal Karade
Homalocephale - Video Learning - WizScience.com
Homalocephale - Video Learning - WizScience.com
Published: 2015/09/08
Channel: Wiz Science™
Gargoyleosaurus - Video Learning - WizScience.com
Gargoyleosaurus - Video Learning - WizScience.com
Published: 2015/09/08
Channel: Wiz Science™
Arcovenator - Video Learning - WizScience.com
Arcovenator - Video Learning - WizScience.com
Published: 2015/09/02
Channel: Wiz Science™
Squamosal suture cranial fault
Squamosal suture cranial fault
Published: 2015/04/17
Channel: Tiphanie Hall
Temporal bone
Temporal bone
Published: 2015/09/25
Channel: Ella Contardo
Neurocranium - Definition and Location - Human Anatomy | Kenhub
Neurocranium - Definition and Location - Human Anatomy | Kenhub
Published: 2015/06/01
Channel: Kenhub
Sunosuchus - Video Learning - WizScience.com
Sunosuchus - Video Learning - WizScience.com
Published: 2015/09/29
Channel: Wiz Science™
Ceratopsia
Ceratopsia
Published: 2016/03/23
Channel: Century Old
Monjurosuchus - Video Learning - WizScience.com
Monjurosuchus - Video Learning - WizScience.com
Published: 2015/09/10
Channel: Wiz Science™
How to say "squamosal"! (High Quality Voices)
How to say "squamosal"! (High Quality Voices)
Published: 2017/02/04
Channel: WordBox
Spinops - Video Learning - WizScience.com
Spinops - Video Learning - WizScience.com
Published: 2015/09/04
Channel: Wiz Science™
Biting mechanism of snake. (poisonous)
Biting mechanism of snake. (poisonous)
Published: 2017/09/09
Channel: ART OF LIFE
Erythrosuchus - Video Learning - WizScience.com
Erythrosuchus - Video Learning - WizScience.com
Published: 2015/09/10
Channel: Wiz Science™
How To Pronounce Squamosal
How To Pronounce Squamosal
Published: 2017/02/13
Channel: Bezawada Viedos
Skull Anatomy: Part 1
Skull Anatomy: Part 1
Published: 2013/02/06
Channel: ANAT1552
Protome (genus) - Video Learning - WizScience.com
Protome (genus) - Video Learning - WizScience.com
Published: 2015/09/29
Channel: Wiz Science™
How to Pronounce Squamosal
How to Pronounce Squamosal
Published: 2016/12/10
Channel: Dictionary Voice
Feeserpeton - Video Learning - WizScience.com
Feeserpeton - Video Learning - WizScience.com
Published: 2015/09/29
Channel: Wiz Science™
Anatomy and Physiology Chapter 7 Part A Lecture: The Skelton
Anatomy and Physiology Chapter 7 Part A Lecture: The Skelton
Published: 2015/09/29
Channel: Fuzail Majoo
Craniosynostosis
Craniosynostosis
Published: 2015/03/04
Channel: UT Health San Antonio Neurosurgery
Sagittal, Coronal, and Squamosal Sutures
Sagittal, Coronal, and Squamosal Sutures
Published: 2015/04/17
Channel: chelseydodd
Torosaurus - Video Learning - WizScience.com
Torosaurus - Video Learning - WizScience.com
Published: 2015/08/05
Channel: Wiz Science™
Internal frontal cranial fault
Internal frontal cranial fault
Published: 2016/12/06
Channel: Lauren Lee
HN-1The Human Skull
HN-1The Human Skull
Published: 2015/03/13
Channel: SIMPLE123
Applied Kinesiology - Naso-Sphenoid Cranial Fault
Applied Kinesiology - Naso-Sphenoid Cranial Fault
Published: 2015/12/05
Channel: Rob Neuenschwander
Saggital and Coronal Suture Release
Saggital and Coronal Suture Release
Published: 2011/11/01
Channel: Sheena Livingstone
Zuniceratops - Video Learning - WizScience.com
Zuniceratops - Video Learning - WizScience.com
Published: 2015/09/17
Channel: Wiz Science™
Tanycolagreus - Video Learning - WizScience.com
Tanycolagreus - Video Learning - WizScience.com
Published: 2015/08/05
Channel: Wiz Science™
Mississippi King by Five Horse Johnson
Mississippi King by Five Horse Johnson
Published: 2010/11/16
Channel: Matt H
Protoceratops - Video Learning - WizScience.com
Protoceratops - Video Learning - WizScience.com
Published: 2015/08/02
Channel: Wiz Science™
Kundurosaurus
Kundurosaurus
Published: 2015/07/30
Channel: Wiz Science™
How to Pronounce Squamosal
How to Pronounce Squamosal
Published: 2014/01/10
Channel: Emma Saying
Coronal suture Meaning
Coronal suture Meaning
Published: 2015/04/28
Channel: ADictionary
Nicole LeDouarin (Collège de France) Part 1: The Neural Crest in Vertebrate Development
Nicole LeDouarin (Collège de France) Part 1: The Neural Crest in Vertebrate Development
Published: 2010/03/26
Channel: iBiology
Nose Endoscopy:Bone Spur of Nose.
Nose Endoscopy:Bone Spur of Nose.
Published: 2017/07/28
Channel: ENT Surgery
Ceratopsia - Video Learning - WizScience.com
Ceratopsia - Video Learning - WizScience.com
Published: 2015/08/06
Channel: Wiz Science™
Eclectus parrot
Eclectus parrot 's Male (green) and female (red)
Published: 2016/01/12
Channel: Kakoli Mukherjee
Nicole LeDouarin (Collège de France) Pt 2: The Role of the Neural Crest in Head Dev & Vertebrate Evo
Nicole LeDouarin (Collège de France) Pt 2: The Role of the Neural Crest in Head Dev & Vertebrate Evo
Published: 2010/03/26
Channel: iBiology
Lambdoid Meaning
Lambdoid Meaning
Published: 2015/04/24
Channel: SDictionary
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
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Sq: squamosal

The squamosal is a bone of the head of higher vertebrates. It is the principal component of the cheek region in the skull, lying below the temporal series and otic notch and bounded anteriorly by the postorbital. Posteriorly, the squamosal articulates with the posterior elements of the palatal complex, namely the quadrate and pterygoid. The squamosal is bordered anteroventrally by the jugal and ventrally by the quadratojugal.[1]

In many mammals, including humans, it fuses with the periotic bone and the auditory bulla to form the temporal bone, then referred to as the squama temporalis.

Evolution[edit]

In synapsids (mammal-like reptiles) the jaw is composed of four bony elements and referred to as a Quadro-articular jaw because the joint is between the articular and quadrate bones. In therapsids (advanced synapsids including mammal ancestors) the jaw is simplified into an articulation between the dentary and the squamous part of the temporal bone, and hence referred to as a dentary-squamosal jaw. In therapsids, the other two bones have moved into the ear to become the malleus and incus.[2]

References[edit]

  1. ^ Roemer, A. S. (1956). Osteology of the Reptiles. University of Chicago Press. p. 772. 
  2. ^ Carr, Steven M. (2005). "Quadroarticular vs Dentary-Squamosal jaw". Memorial University of Newfoundland. Retrieved August 2012.  Check date values in: |access-date= (help)

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