anatomy resources - g16-17a: triangles of the neck...• visceral triangle of the neck • root of...
TRANSCRIPT
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G16-17A: Triangles of the Neck
GL16:
A - Anterior Triangle (Cadaver)
B - Bone Lab (Skulls) HSEB 4300
David A. Morton, Ph.D. Pg 11
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G16-17A: Objectives
• Posterior triangle of the Neck
• Anterior triangle of the Neck
• Visceral triangle of the Neck
• Root of the Neck
Pg 11
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Triangles of the Neck
Borders
• SCM
• Trapezius
Pgs 11-12
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Anterior triangle
Posterior triangle
Triangles of the Neck
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1. Posterior Triangle
Cervical plexus
External jugular v.
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1. Posterior Triangle - Roof
Deep Investing fascia
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1. Posterior Triangle - Floor
Prevertebral fascia
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1. Posterior Triangle - Floor
Axillary sheath
Interscalene triangle
Anterior scalene m.
Brachial plexus &
Axillary artery
Middle scalene m.
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1. Posterior Triangle - Floor
Posterior scalene m.
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1. Posterior Triangle - Floor
Splen capitis m.
Lev. scap. m.
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1. Posterior Triangle - Arteries
Thyrocervical trunk
-Transv. cerv. a.
- Suprascapular a.
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Anterior triangle
• Muscular
• Submental
• Submandibular
• Carotid
Posterior triangle
2. Triangles of the Neck
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2. Anterior Triangle Subdivisions
Submental triangle
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2. Anterior Triangle Subdivisions
Submandibular triangle
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2. Anterior Triangle Subdivisions
Submandibular triangle
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2. Anterior Triangle Subdivisions
Carotid triangle
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2. Anterior Triangle Subdivisions
Carotid triangle
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a. Cervical plexus
2. Nerves - Ant Triangle
C1
C2
C3
C4
C6
C7
C5
C8
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b. Glossopharyngeal n.
(CN IX)
• VS: carotid sinus and
body
2. Nerves
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2. Nerves
c. Vagus n. (CN X)
• VS: Carotid body n.
• GS/BM: Laryngeal nn.
• Superior
• Internal
• External
• Inferior (recurrent)
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Nerves
d. Sympathetic trunk
Gray rami commun.
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3) Visceral Triangle
• Thyroid/Parathyroid
• Trachea
• Esophagus
Pgs 19-20
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Thyroid
Left and Right lobesLeft and Right lobes
Isthmus
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Thyroid
Superior thyroid a.
Inferior thyroid a.
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Thyroid
Superior thyroid v.
Middle thyroid v.
Inferior thyroid v.
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Thyroid
Internal laryngeal n .
Superior laryngeal a.
Inferior thyroid a.
Inferior (recurrent) laryngeal n.
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Thyroid
Internal laryngeal n .Internal laryngeal n .
Superior laryngeal a.Superior laryngeal a.
Inferior thyroid a.Inferior thyroid a.
Inferior (recurrent) laryngeal n.Inferior (recurrent) laryngeal n.
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Parathyroid glands
Location
General function
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Trachea
Hyoid
Thyroid cartilage
Trachea
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Pharynx/Esophagus
Pharynx
Esophagus
Trachea
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4) Root of the Neck
• Aortic arch
• Subclavian artery branches
• Veins
• Thoracic duct
Pgs 19-20
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Subclavian artery
Vertebral
Thyrocervical trunk
Dorsal scapular
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Subclavian artery
Anterior scalene m.
Vertebral
Longus coli m.
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Subclavian artery
Vertebral
Transverse foramina
Foramen magnum
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Inferior thyroid
Ascending cervical
Transverse cervical
Suprascapular
Thyrocervical trunk
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Thoracic duct
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Thoracic duct
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