the neck xiaoming zhang department of human anatomy school of medicine zhejiang university
TRANSCRIPT
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The Neck
Xiaoming Zhang
Department of Human Anatomy School of Medicine Zhejiang University
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I Introduction
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II Boundaries and Division
Neck : by trapezius
The posterior portion: nape
The anterior portion: the side of the neckThe anterior portion : by Sternocleidomastoid
anterior region
posterior region
sternocleidomastoid region
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Superficial Part Of Neck
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I Skin
II Superficial fascia and platysma
III Superficial structures
1. Anterior jugular vein
External jugular vein
2. Superficial lateral cervical lymph nodes
3. The cutaneous branches of the cervical plexus:
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The surface Landmarks:
hyoid bone thyroid cartilage cricoid cartilage jugular notch sternocleidomastoid greater supraclavicular fossa clavicle
The surface Landmarks:
hyoid bone thyroid cartilage cricoid cartilage jugular notch sternocleidomastoid greater supraclavicular fossa clavicle
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Deep Part Of Neck I FasciaThree layers: Superficial layer- enveloping fasciaMiddle layer - pretracheal fascia(visce
ral fascia)Deep layer - prevertebral fascia
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The submandibular triangleThe boundaries: ---the inferior border of the mandible ---the anterior, posterior bellies of the digastric ---superficially : the skin; superficial fascia; platysma ; superficial layer of the cervical fascia;
---deeply : mylohyoid hyoglossus middle constrictor of the pharynx
The submandibular triangleThe boundaries: ---the inferior border of the mandible ---the anterior, posterior bellies of the digastric ---superficially : the skin; superficial fascia; platysma ; superficial layer of the cervical fascia;
---deeply : mylohyoid hyoglossus middle constrictor of the pharynx
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The contents:---submandibular gland and its duct---submandibular lymph nodes---facial artery and vein ---hypoglossal nerve---lingual artery and vein ---lingual nerve
The contents:---submandibular gland and its duct---submandibular lymph nodes---facial artery and vein ---hypoglossal nerve---lingual artery and vein ---lingual nerve
The submandibular triangleThe submandibular triangle
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Carotid TriangleBoundariesContents
1 Internal jugular V. 2 The common carotid A. External carotid artery : Superior thyroid A. Lingual A. Facial A. Occipital A. Posterior auricular A.
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3 Hypoglossal N.
4 Vagus N.—superior laryngeal N.
internal laryngeal N.
external laryngeal N.
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III The Muscular Triangle
Layers
1.The skin
2.The superficial fascia and platysma
3.The superficial structure
- Anterior jugular vein
- Transverse cervical nerve
4.Enveloping fascia
5.The infrahyoid muscles:
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III The Muscular Triangle
6 Pretracheal fascia
7 The thyroid gland
8 The Parathyroid
glands
9 The cervical part
of trachea and
esophagus
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IV The sternocleidomastoid region 1 The ansa cervicalis 2 The contents of carotid sheath common carotid artery internal jugular V. vagus N. 3 The cervical plexus: five cutaneous branches, phrenic N. 4 The sympathetic trunk of the neck
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Ansa cervicalis
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The thyroid gland:• The shape: “H” shaped, right and left lobes, isthmus.
somebody have a pyramidal lobe.
The thyroid gland:• The shape: “H” shaped, right and left lobes, isthmus.
somebody have a pyramidal lobe.
• Location : --- lateral lobes: --- isthmus :
• Location : --- lateral lobes: --- isthmus :
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• Relations: ----Anteriorly: skin superficial fascia enveloping fascia infrahyoid muscles pretracheal fascia
----Posteromedially : larynx and trachea pharynx and esophagus recurrent laryngeal nerve ----Posteriorly: parathyroid gland Sympathetic trunk ----Posterolaterally: carotid sheath and its contents
• Relations: ----Anteriorly: skin superficial fascia enveloping fascia infrahyoid muscles pretracheal fascia
----Posteromedially : larynx and trachea pharynx and esophagus recurrent laryngeal nerve ----Posteriorly: parathyroid gland Sympathetic trunk ----Posterolaterally: carotid sheath and its contents
The thyroid gland:The thyroid gland:
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•The coverings: ----The false capsule suspensory ligament of thyroid gland ----The true capsule (真被囊)
•The coverings: ----The false capsule suspensory ligament of thyroid gland ----The true capsule (真被囊)
The thyroid gland:The thyroid gland:
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• The blood vessels and nerves ---- A: 1. superior thyroid artery and superior laryngeal nerve
2. inferior thyroid artery & recurrent laryngeal nerve
3. lowest thyroid artery (the arteria thyroidea ima)
• The blood vessels and nerves ---- A: 1. superior thyroid artery and superior laryngeal nerve
2. inferior thyroid artery & recurrent laryngeal nerve
3. lowest thyroid artery (the arteria thyroidea ima)
The thyroid gland:The thyroid gland:
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The thyroid gland:The thyroid gland:• The blood vessels and nerves: ---- V: 1. superior thyroid vein
2. middle thyroid vein 3. inferior thyroid vein and the unpaired thyroid venous plexus. ------Nrecurrent laryngeal nerve superior laryngeal nerve
• The blood vessels and nerves: ---- V: 1. superior thyroid vein
2. middle thyroid vein 3. inferior thyroid vein and the unpaired thyroid venous plexus. ------Nrecurrent laryngeal nerve superior laryngeal nerve
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SummaryThe Boundaries and Division of the ne
ck. The superficial structures of neck The deep part of neck The carotid triangle. The muscular triangle. The sternocleidomastoid region.