WordNet
- a three-sided polygon (同)trigon, trilateral
- something approximating the shape of a triangle; "the coastline of Chile and Argentina and Brazil forms two legs of a triangle"
- a percussion instrument consisting of a metal bar bent in the shape of an open triangle
- any of various triangular drafting instruments used to draw straight lines at specified angles
- of or relating to the occiput; "occipital bone"
PrepTutorEJDIC
- 三角形 / 三角形の物 / 《米》三角定規 / (楽器の)トライアングル / 三つ組,三人組;(男女の)三角関係
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出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2014/01/28 12:25:57」(JST)
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Occipital triangle |
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Occipital triangle |
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Side of neck, showing chief surface markings. (Nerves are yellow, arteries are red.) |
Gray's |
subject #145 565 |
The occipital triangle, the larger division of the posterior triangle, is bounded, in front, by the Sternocleidomastoideus; behind, by the Trapezius; below, by the Omohyoideus.
Its floor is formed from above downward by the Splenius capitis, Levator scapulæ, and the Scaleni medius and posterior.
It is covered by the skin, the superficial and deep fasciæ, and by the Platysma below.
The accessory nerve is directed obliquely across the space from the Sternocleidomastoideus, which it pierces, to the under surface of the Trapezius; below, the supraclavicular nerves and the transverse cervical vessels and the upper part of the brachial plexus cross the space.
The roof of this triangle is formed by the cutaneous nerves of cervical plexus and the external jugular vein and platysma muscle.
A chain of lymph glands is also found running along the posterior border of the Sternocleidomastoideus, from the mastoid process to the root of the neck.
Contents
- 1 Gallery
- 2 See also
- 3 References
- 4 External links
Gallery[edit]
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Muscles of the neck. Anterior view.
See also[edit]
- Posterior triangle of the neck
References[edit]
External links[edit]
- lesson6 at The Anatomy Lesson by Wesley Norman (Georgetown University)
This article incorporates text from a public domain edition of Gray's Anatomy.
Superficial axial anatomy and general regions (TA A01.2.01–06, GA 12.1287)
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Head |
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Neck |
Triangles:
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- Anterior of the neck
- Muscular
- Carotid
- Submandibular
- Submental
- Posterior of the neck
- Suboccipital
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Thorax |
- Triangle of auscultation
- axillary folds
- Clavipectoral triangle
- Inframammary fold
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Abdomen/pelvis |
regions
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- Epigastrium
- Hypochondrium
- Umbilical region
- Latus
- Hypogastrium
- Inguinal region
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quadrants
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- McBurney's point
- Desjardins' point
- Traube's space
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Perineal |
- Anal triangle
- Urogenital triangle
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General anatomy: systems and organs, regional anatomy, planes and lines, superficial axial anatomy, superficial anatomy of limbs
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UpToDate Contents
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English Journal
- The Safe Area in the Parieto-Occipital Lobe in the Human Brain: Diffusion Tensor Tractography.
- Jang SH1, Kim SH2, Kwon HG3.
- World neurosurgery.World Neurosurg.2015 Feb 26. pii: S1878-8750(15)00127-8. doi: 10.1016/j.wneu.2015.02.020. [Epub ahead of print]
- OBJECTIVE: A recent study reported on the relatively safe area in the frontal lobe for performance of neurological interventions; however, no study on the posterior safe area has been reported. In this study, using diffusion tensor tractography, we attempted to identify the safe area in the parieto-
- PMID 25727305
- Genome-wide schizophrenia variant at MIR137 does not impact white matter microstructure in healthy participants.
- Kelly S1, Morris DW2, Mothersill O1, Rose EJ3, Fahey C1, O'Brien C1, O'Hanlon E4, Gill M1, Corvin AP1, Donohoe G5.
- Neuroscience letters.Neurosci Lett.2014 Jun 27;574:6-10. doi: 10.1016/j.neulet.2014.05.002. Epub 2014 May 10.
- A single nucleotide polymorphism (SNP rs1625579) within the micro-RNA 137 (MIR137) gene recently achieved strong genome-wide association with schizophrenia (SZ). However, the mechanisms by which SZ risk may be mediated by this variant are unknown. As miRNAs have the potential to influence oligodendr
- PMID 24820543
- An Anatomical Variation of the Lesser Occipital Nerve in the "Carefree part" of the Posterior Triangle.
- Ravindra S S1, Sirasanagandla SR1, Nayak SB2, Rao Kg M3, Patil J1.
- Journal of clinical and diagnostic research : JCDR.J Clin Diagn Res.2014 Apr;8(4):AD05-6. doi: 10.7860/JCDR/2014/7423.4276. Epub 2014 Apr 15.
- The occurrence of the lesser occipital nerve (LON) at an anomalous location in the "carefree part" within the posterior triangle has been seldom reported in the literature. We are reporting a rare case of location of the LON in the "carefree part" of the posterior triangle, in a 55-year-old formalin
- PMID 24959430
Japanese Journal
- Effects of Form and Size of Geometric Figures on Visual Evoked Potentials
- 伊藤 元雄
- 愛知学院大学論叢. 心身科学部紀要 3, 1-6, 2008-03
- … The outlined geometric figures of two forms (an equilateral triangle and a circle) in four sizes (with a contour length of the figure: 3, 6, 12 and 24cm) were presented below a fixation point by a tachistoscope for ten subjects. … Around the posterior (occipital) area, the triangle elicited significantly larger N1 and P2 amplitudes than the circle for any size conditions with the exception of the 3cm. …
- NAID 110007054054
- Surgical Anatomy of the Cervical Carotid Artery for Carotid Endarterectomy
- HAYASHI Nakamasa,HORI Emiko,OHTANI Yuko,OHTANI Osamu,KUWAYAMA Naoya,ENDO Shunro
- Neurologia medico-chirurgica 45(1), 25-30, 2005-01-15
- … The surgical anatomy of the carotid arteries was studied in the carotid triangle of 49 cadavers. … The occipital artery arose from the posterior aspect of the external carotid artery above the level of origin of the facial artery in 57% of specimens, between the origins of the facial and lingual arteries in 32%, and below the origin of the lingual artery in 11%. …
- NAID 110002283536
Related Links
- triangle [tri´ang-g'l] a three-cornered object, figure, or area, such as a delineated area on the surface of the body; called also trigone. carotid triangle, inferior that between the median line of the neck in front, the sternocleidomastoid ...
- triangle, in mathematics triangle, in mathematics, plane figure bounded by three straight lines, the sides, which intersect at three points called the vertices. Any one of the sides may be considered the base of the triangle. The ...
Related Pictures
★リンクテーブル★
[★]
- 英
- ()
- 英
- occipital triangle
[★]
- 関
- occipitalis、occiput
[★]
- 関
- deltoid、triangular