Docsity
Docsity

Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity


Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan


Guidelines and tips
Guidelines and tips

TRIANGLE OF NECK MAINLY CONTAIN POSTERIOR TRIANGLE, Lecture notes of Anatomy

contain notes on posterior triangle of neck

Typology: Lecture notes

2016/2017

Uploaded on 11/19/2017

ankita-nepak
ankita-nepak 🇮🇳

1 document

1 / 80

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
IMS MSU
Dr. THAAER MOHAMMED DAHER ALSAAD
SPECIALIST IN GENERAL SURGERY
M.B.Ch.B.(MBBS) F.I.B.M.S.(Ph.D.)
SENIOR LECTURER
pf3
pf4
pf5
pf8
pf9
pfa
pfd
pfe
pff
pf12
pf13
pf14
pf15
pf16
pf17
pf18
pf19
pf1a
pf1b
pf1c
pf1d
pf1e
pf1f
pf20
pf21
pf22
pf23
pf24
pf25
pf26
pf27
pf28
pf29
pf2a
pf2b
pf2c
pf2d
pf2e
pf2f
pf30
pf31
pf32
pf33
pf34
pf35
pf36
pf37
pf38
pf39
pf3a
pf3b
pf3c
pf3d
pf3e
pf3f
pf40
pf41
pf42
pf43
pf44
pf45
pf46
pf47
pf48
pf49
pf4a
pf4b
pf4c
pf4d
pf4e
pf4f
pf50

Partial preview of the text

Download TRIANGLE OF NECK MAINLY CONTAIN POSTERIOR TRIANGLE and more Lecture notes Anatomy in PDF only on Docsity!

IMS MSU

Dr. THAAER MOHAMMED DAHER ALSAAD

SPECIALIST IN GENERAL SURGERY

M.B.Ch.B.(MBBS) F.I.B.M.S.(Ph.D.)

SENIOR LECTURER

TRIANGLES

OF THE

NECK

TRIANGLES OF THE NECK 1/

  • Anterolaterally the neck appears as a somewhat

quadrilateral area,

  • limited superiorly by the base of the mandible and a line continued from the angle of the mandible to the mastoid process,
  • inferiorly by the upper border of the clavicle,
  • anteriorly by the anterior median line,
  • posteriorly by the anterior margin of trapezius.
  • This quadrilateral area can be further divided into

anterior and posterior triangles by sternocleidomastoid, which passes obliquely from the sternum and clavicle to the mastoid process and occipital bone.

The triangles of the left side of the neck

Anterior triangle of the neck

  • is bounded anteriorly by the median line of the neck,
  • posteriorly by the anterior margin of sterno-cleidomastoid.
  • Its base is the inferior border of the mandible
  • and its projection to the mastoid process,
  • and its apex is at the manubrium sterni.
  • It can be subdivided into;
  • suprahyoid and infrahyoid areas above and below the hyoid bone,
  • and into
  • digastric, submental, muscular and carotid triangles by the passage of digastric and omohyoid across the anterior triangle

The triangles of the left side of the neck

Dissection of the left anterior triangle. Platysma has been divided transversely: its upper part has been turned upwards on to the face, and its lower part turned backwards, exposing the lower part of sternocleidomastoid.

  • The submandibular lymph nodes are variably related to the submandibular gland.
  • The posterior region of the digastric triangle contains the lower part of the parotid gland.
  • The external carotid artery,
    • passing deep to stylohyoid,
    • curves above the muscle,
    • and overlaps its superficial surface as it ascends deep to the parotid gland before entering it.  The internal carotid artery, internal jugular vein and vagus nerve lie deeper and are separated from the external carotid artery by  styloglossus, stylopharyngeus and the glossopharyngeal nerve.

DIGASTRIC TRIANGLE 2/

The triangles of the left side of the neck

The triangles of the left side of the neck