Suprahyoids+Cervical plexus + Symp chain Flashcards
بسم الله الرحمن الرحيم
“وأوتينا العلم من قبلها وكنا مسلمين”
________________
Mention suprahyoids
MSGD
Mylohyoid
Stylohyoid
Geniohyoid
Digastric
Describe Digastric according to ?
Origin
insertion
action
Nerve supply
Origin :
Anterior belly from digastric fossa of inner suface of mandible
Posterior belly from The digastric notch in mastoid pocess of Temporal lobe
______________
insertion : the two bellies joined at central intermediate tendon attaced to hyoid by? a fiborus loop
__________________
Action : Elevation of hyoid + depression and Retratcion of Mandible
__________________
Nerve supply
Anterior belly :CN5 nereve to Mylohyoid
Posterior belly : CN7
Nerve to mylohyoid also supplies ?
Anterior belly of digastric
It is a branch of CN5
describe relations of The diagsttic muscle
Anterior belly :
Superficila : skin superficial fascial platysma + deep fascia
Deep : Myolhyoid nerve and vessels and muscle
___________________
Posterior belly of Digastric :
superficial : Skin superfical fascia platysma deep fascia
bone gland bone gland
Mastoid process and muscles attaced Sternomastoid spleinucapitis
Parotid gland
Angle of Mandilbe Submanidublar Salivary gland
=-=
deep : Last 3cranial nerves
Carotid sheath : ICA +IJV +Vagus
ECA and Facial+lingual b
Hyoglossus
___________________
upper : post auricular art + stylohyoid
lower : Occipital art
Ant belly of digastric relations
Anterior belly :
Superficila : skin superficial fascial platysma + deep fascia
Deep : Myolhyoid nerve and vessels and muscle
post belly of diagtirc relations
Posterior belly of Digastric :
superficial : Skin superfical fascia platysma deep fascia
bone gland bone gland
Mastoid process and muscles attaced Sternomastoid spleinucapitis
Parotid gland
Angle of Mandilbe Submanidublar Salivary gland
__________________
deep : Last 3cranial nerves
Carotid sheath : ICA +IJV +Vagus
ECA and Facial+lingual b
Hyoglossus
Upper and lower borderes of digastric relations mention
Upper post auricular art + stylohyoid muscle
lower : Occipital artery
Describe stylohyoid muscle
From sytloid procecss to hyoid bone
for elevation of hyoid bone
Supplied by CN7 :Facial Nerve
anterior belly of diagstic
From the mylohyoid line in the inner surface of mandilbe which forms the floor of mouth
___________
anterior and middle fibers inserted in mylohyoid raphe and the posterior direct to hyoid bone
_________________
Action : elevation of Hyoid and depression of Mandible
___________________
Supplied by CN5 Nerve to mylohyoid
Mention superficial relations to Myolohyoid
Skin superficial fascia deep fascia
superifical submanidublar salivary gland
boundaries and contents of submental triangles
=three group of sructures:
-Anterior belly of digastric
superficial to mylohyoid in diagastic tiagnle :–Submental nerve and vessels
-Mylohyoid nerve and vessels
Mention deep relation to mylohyoid
Hyoglossus
styloglossus - genioglossus - genihyoid
sublingual salivary glands
describe genihyoid muscles
from inferior genial tubecle of inner mandible surface to the body of hyooid action : casuing hyoid elevation
nerve supply C1 via hypoglossal nerve
Mention site and construction of cervical pleux
Between anterior and posterior tubercle of cervical transverse processes
________________
construction Ventral rami of upper four cervical Nerves
_________________
Relations and formation of Cevical pleux mention
Between
scalenus medius posteiroly
and Prevertebral Fascia anterorly
_______________
Each nerve divide into upper and lower division uniting forming 3 loooops
Branhces of Cervical pleux
Communicating :
Gray rami fom superior cervical ganglion to all roots
From c1 to hypoglossal froming superior limb of ansa cervicalis
__________________
cUTANOUS :
Suprclacvilar c34
Transverse cervicalc23
Greater auricularea c23
lesser occipital c2
___________________
Muslcuar
=Infrahyoid via ansa cerivclais
=Prevertebral, salneus meidus, levator scpaulae
= Proptioceptive to trapezius c23, sternomastoid c3
Phrenic c345 to diapharam
