ANTERIOR TRIANGLE It is in front of the Sternomastoid muscle.

Slides:

Advertisements

Similar presentations

Head & Neck Unit – Lecture 11 د. حيدر جليل الأعسم

Advertisements

Scalenus Anterior Origin: From the transverse processes of the 3rd; 4th ; 5th and 6th cervical vertebrae. Insertion: Into the scalene tubercle on the inner.

Posterior Triangle of the Neck

Head & Neck Unit – Lecture15 د. حيدر جليل الأعسم

The Submandibular Region

Anatomy of the neck By Dr. Rasha Sabry.

Lymphatic drainage of the head and neck

Head & Neck Unit – Lecture 13 د. حيدر جليل الأعسم

Triangles of the Neck Sanjaya Adikari Department of Anatomy.

Posterior Triangle of the Neck

Department of Human Anatomy

WINDSOR UNIVERSITY SCHOOL OF MEDICINE

POSTERIOR & ANTERIOR TRIANGLE OF NECK

Muscluar triangles of ……………….the neck

Surface anatomy Plan fascia of the neck

The Submandibular Region-II

By Prof. Saeed Abuel Makarem

PHARYNX Pharynx Prof .Saeed Makarem.

Section 3: Lecture 1; Anatomy & physiology of voice production.

Dr Nimir Dr.Safaa Objectives Discussing the anatomical structure of the thyroid gland in addition to the parathyroid glands. Recognizing the blood supply.

SUBMANDIBULAR REGION I

Thyroid gland Structure : it is the largest endocrine gland in the body. It has butterfly shape. It consists of 2 lateral ( right & left.

Triangles of the neck The neck is divided by the sternocleidomastoid muscle, which run obliquely downward and forward from the mastoid process and the.

ANTERIOR TRIANGLE of the NECK

ANTERIOR TRIANGLE It is in front of the sternomastoid muscle.

Dr. Mujahid Khan.  The scalenus anterior muscle is a key muscle in understanding the root of the neck  It is deeply placed  It descends almost vertically.

VESSELS AND NERVES OF THE NECK. Main Arteries of the neck 1. Common Carotid Artery. 2. External Carotid Artery. 3. Internal Carotid Artery. 4. Subclavian.

Anterior triangle Dr. Lubna Nazli Associate Professor Anatomy

درس امروز بررسی عضلات ناحیه سوپرا و اینفراهایوئید

 Thyroid Gland  Parathyroid  Trachea  Esophagus  By  Prof. Saeed Abuel Makarem.

Dr. Ahmed Fathalla Ibrahim. THE PAROTID REGION It includes: 1.The parotid salivary gland 2.The structures related to the gland.

1 Myology Muscles of the Anterior Neck. 2 Muscles of the Neck Overview Muscle of neck are divided into two groups: –Anterior Superficial (2) Hyoids –Infrahyoids.

1-Lateral & medial pterygoids (muscles of mastication). 2-Branches of mandibular N. 3-Otic ganglion. 4- Chorda tympani. 5-Maxillary artery. 6-Pterygoid.

Veins of the Head and neck

NERVES OF THE NECK. Main Nerves of the neck 1. Vagus nerve. 2. Accessory nerve. 3. Hypoglossal nerve. 4. Cervical part of sympathetic trunk. 5. Cervical.

SUBOCCIPITAL TRIANGLE

Submandibular Region It lies under cover of the body of the mandible between the mandible and the hyoid bone. It contains muscles; salivary glands; nerves;

Muscles of the Head, Neck, and Face Ppt # Muscles of Facial Expression muscles that insert in the dermis and subcutaneous tissues tense the skin.

Superficial Layer of Deep Fascia alar fascia retrovisceral space danger space.

CHPTER 4 THE FACE Vascular System of Head & Neck

LYMPHATIC SYSTEM OF THE HEAD AND NECK. LYMPHATIC SYSTEM: includes lymph nodes and lymph vessels.

Lab 8-2: Structures of the Neck. Muscles of the Neck.

Parotid Region and Muscles of Mastication Parotid Gland

SUBMANDIBULAR REGION I By Prof. Saeed Makarem 1 Prof. makarem.

Dr. Mohamed Ahmad Taha Mousa

TRIANGLES OF THE NECK Khalid M. Khan Department of Anatomy Kuwait University December 09, 2013.

BLOOD AND NERVE SUPPLY TO HEAD & NECK

LYMPHATIC DRAINAGE OF HEAD & NECK

Anterior Neck Triangles

ANTERIOR TRIANGLE OF THE NECK II

SUBMANDIBULAR REGION I

Triangles of the neck Suboccipital Anterior Posterior

The Root of the neck.

Posterior belly of digastric

ANTERIOR and POSTERIOR TRIANGLES of NECK

The Submandibular Region

The Neck: Cutaneous Innervation, Muscles, Anterior and Posterior Cervical Triangles and their Subdivisions.

PERIPHERAL NERVOUS SYSTEM College of Medicine / Mutah University

UNIT IV – Problem IV- Anatomy

درس امروز بررسی نواحی مختلف حلق، نحوه تشکیل آن و ارتباط آن با حنجره و مری بررسی ساختار حنجره، عصب دهی و عملکرد آن بررسی عضلات ناحیه سوپرا و اینفراهایوئید.

Salivary Glands Submandibular Salivary gland:

THYROID, PARATHYROID GLANDS Ass.Prof. Dr. Saif Ali Ahmed Ghabisha.

ANATOMY SUPRAHIOD MUSCLE. OBJECTIVES 1: 2: 3: Suprahyoid muscle MylohyoidDigastricStylohyoidGeniohyoid.

Face, Scalp, and Cervical Plexus

DR. MURAD H KAZI Muscluar triangles of ……………….the neck.

Presentation transcript:

ANTERIOR TRIANGLE It is in front of the Sternomastoid muscle.

BOUNDARIES Anteriorly : midline of the neck. Posteriorly: anterior border of sternomastoid. Superiorly: lower margin of the body of the mandible.

BOUNDARIES Roof: skin, superficial fascia (containing platysma) and the Investing layer of deep cervical fascia.

SUBDIVISIONS The anterior triangle is subdivided by : The Anterior and Posterior bellies of the Digastric and The Superior belly of Omohyoid into (4) smaller triangles.

SUBDIVISIONS

SUBMENTAL TRIANGLE It lies below the chin. Boundaries : Anteriorly: midline of the neck. Laterally: Anterior belly of Digastric.

BOUNDARIES Inferiorly : body of the hyoid. Floor: Mylohyoid muscle.

CONTENTS Submental lymph nodes. They receive lymph from the tip of the tongue.

MYLOHYOID MUSCLE It is a flat triangular sheet that supports the floor of the mouth and tongue (forms the main part of the floor of the mouth). Origin : Mylohyoid line of the mandible.

MYLOHYOID Insertion: The anterior fibers: Into a Fibrous Raphe. The posterior fibers: Into the body of hyoid bone.

MYLOHYOID Nerve supply : Nerve to mylohyoid.

MYLOHYOID Action : If the mandible is fixed: Elevates the floor of the mouth as in deglutition. If the hyoid bone is fixed: Depresses the mandible and opens the mouth.

DIGASTRIC TRIANGLE It lies below the body of the mandible. Boundaries: Anteriorly: Anterior belly of Digastric. Posteriorly: Posterior belly of digastric & Stylohyoid.

DIGASTRIC TRIANGLE Superiorly: Lower border of the body of the mandible. Floor: Mylohyoid. Hyoglossus.

CONTENTS A. Anterior part : (1) Submandibular salivary gland. (2) Facial artery (deep to gland). (3) Facial vein (4) Submandibular lymph nodes. The vein and lymph nodes are superficial to the gland.

CONTENTS (5) Hypoglossal nerve. (6) Nerve and vessels to mylohyoid.

CONTENTS B. posterior part: 1. Carotid sheath and its contents. 2. parotid gland (Lower part)

DIGASTRIC MUSCLE It has two bellies: Anterior and Posterior. Posterior belly : Arises from the mastoid process. Inserted into the intermediate tendon. Anterior belly attached to the lower border of body of mandible.

DIGASTRIC MUSCLE Insertion : to the Intermediate Tendon. It pierces the insertion of stylohyoid. It binds to the hyoid bone by a loop of deep fascia.

NERVE SUPPLY Posterior belly: Facial Nerve Anterior belly: The nerve to Mylohyoid.

ACTION Depression of the mandible. OR Elevation of the hyoid bone.

STYLOHYOID MUSCLE Origin: The styloid process. It runs along the upper border of the posterior belly of digastric. Insertion: Hyoid bone (between body and greater horn).

STYLOHYOID MUSCLE Nerve supply : Facial nerve. Action : Elevation of hyoid bone.

CAROTID TRIANGLE It is behind the hyoid bone. Boundaries : Superiorly: Posterior belly of Digastric. Inferiorly: Superior belly of Omohyoid.

BOUNDARIES Posteriorly: Anterior border of sternomastoid. Floor: Thyrohyoid. Hyoglossus. Middle & Inferior constrictors of the pharynx.

CONTENTS (1) Carotid sheath (2) Hypoglossal nerve and its descending branch. (3) Acessory nerve.

CONTENTS (4) Internal and External laryngeal nerves. (5) Deep cervical lymph nodes.

CAROTID SHEATH It is a condensation of deep cervical fascia. It is attached to the base of the skull superiorly and fuses with the pericardium inferiorly.

CONTENTS 1. Common and internal carotid arteries. 2. Internal jugular vein. 3. Vagus nerve. 4. Deep cervical lymph nodes. They form a chain along the internal jugular vein.

CAROTID SHEATH It is crossed by Glossopharyngeal. Hypoglossal. Spinal part of acessory.

MUSCULAR TRIANGLE It lies below the hyoid bone. Boundaries: Anteriorly : Midline of the neck. Superiorly: Superior belly of Omohyoid.

MUSCULAR TRIANGLE Inferiorly: Anterior border of Sternomastoid Floor: Sternohyoid. Sternothyroid.

FLOOR Beneath the floor lie: Thyroid gland. Larynx. Trachea. Esophagus.

INFRAHYOID MUSCLES

ORIGIN Sternohyoid & Sternothyroid : Posterior surface of the manubrium. Thyrohyoid: Oblique line of thyroid cartilage.

ORIGIN Omohyoid : Inferior belly : Suprascapular ligament and Suprascapular notch. Superior belly: Intermediate tendon.

INSERTION Sternohyoid & Sternothyroid : Hyoid bone (lower border). Oblique line of thyroid cartilage. Thyrohyoid:

INSERTION Omohyoid Hyoid bone (lower border).

NERVE SUPPLY Ansa Cervicalis (C1,2&3) EXCEPT Thyrohyoid: (C1) through the hypoglossal nerve.

ACTION (1) stabilization of the hyoid bone to make a base for the movements of the tongue. (2) Assistance in the movements of the larynx in swallowing.