mucom 2019 Objectives Learn the main structures that pass through the root of the neck Understand the course and branches of the subclavian arteries Know the course and branches of vertebral thyrocervical internal thoracic and ID: 932463
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Root of the Neck
Department of human anatomy –
mucom
2019
Slide2Objectives
Learn the main structures that pass through the root of the neck.
Understand the course and branches of the subclavian arteries.
Know the course and branches of vertebral, thyrocervical, internal thoracic and costocervical arteries.Know the course and tributaries of subclavian veins.Learn the main anatomical features of the cervical sympathetic trunk and related clinical problems.Understand the main anatomical features of thoracic duct in relation to the root of the neck.
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Slide3Structures that pass in or out the root of the Neck
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Horner Syndrom
A
lesion of a cervical sympathetic trunk
in the neck results in a sympathetic disturbance called
Horner syndrome
, which is characterized by:
Contraction of the pupil (
miosis
), resulting from paralysis of the dilator pupillae muscle .
Drooping of the superior eyelid (
ptosis
), resulting from paralysis of the smooth (tarsal) muscle intermingled with the striated muscle of the
levator
palpebrae superioris.
Sinking in of the eye (
enophthalmos
), possibly caused by paralysis of the rudimentary smooth (orbital) muscle in the floor of the orbit.
Vasodilation and absence of sweating on the face and neck (
anhydrosis
), caused by lack of a sympathetic (vasoconstrictive) nerve supply to the blood vessels and sweat glands.
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