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Muscles of Facial Expression: Anterior View

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Muscles of Facial Expression: Anterior View Muscles ofFacial Expression: Anterior View SEE ALSO PLATE 48 ) Galea aponeurotica Frontal belly (frontalis) of epicranius muscle Procerus muscle Corrugator supercilii muscle O rbitbal Part } of orbicularis oculi muscle Pa1 pe ra 1part Levator labii superioris alaeque nasi muscle Transvers e part } of nasalis muscle Alar part Levator labii superioris muscle -1-.:..l~:-;::::._,..:----- Depressor anguli oris muscle --=-~~71--;-------Depressor labii inferioris muscle '""li":-;;=-;t~c ~\("f-;;filiW5i.7.;:i;;i~-L------ Mentalis muscle Platysma muscle Co urse of wrinkle lines of sk in is transverse to fiber direction of facial muscles. Elliptical incisions for removal of skin tumors conform to direction of wrinkle lines , .... --- ........ _,. lr~ -;: ... __ ____ , .~~ ~ CIBA·GEIGY Muscles of Facial Expression: Lateral View Ga lea aponeurotica Auricularis anterior muscle Auricularis superior muscle Orbital part Orbicularis ocu li muscle p b Auricu laris posterior muscle { a1 pe ra 1part Occipital belly Frontal belly (frontalis) of epicra nius muscle of epicran ius (occipitalis) muscle Corrugator su percilii muscle (frontalis and orbiculari s oculi , partially cut away) Procerus muscle Levator lab ii superi o ri s muscle\ Levator labii superi oris \ ~ alaeque nasi muscle (partia ll y cut away) Parotid fascia Zygomaticus minor muscle Superficial ce rvi ca l fascia of posterior (lateral) triangle over levator scapulae and splenius capitis muscles Dep ressor anguli oris muscle Buccinator muscle Risorius muscle Clavicle Pectoralis majo r fascia 01 AT£: ')1 Muscles of Neck: Lateral View Parotid gland (cut) Masseter muscle Mastoid process Styloid process Digastric muscle Body of (posterior belly) mandible Middle pharyngeal constrictor muscle Digastric muscle (anterior belly) Splenius muscle Levator scapulae muscle Posterior Omohyoid muscle Scalene muscles Middle (superior belly) { Anterior Sternohyoid muscle Brachial plexus Inferior pharyngeal constrictor muscle Acromion Omohyoid muscle (inferior belly) Sternal head } Sternocleidomastoid muscle Clavicular head Pectoralis major muscle PLATE 22 Muscles of Neck: Anterior View Digastric muscle (anterior belly) Masseter muscle Mylohyoid muscle Parotid gland~ ~ Submandibular gland Platysma muscle ~ Fibrous loop for (cutaway) intermediate digastric tendon Mastoid process Stylohyoid muscle External carotid artery Internal jugular vein ·:...:----r-.J-..:;......,,....----.1-------Omohyoid muscle ~l~t"jtf{f-~.:_-f-____ (superior belly) Sternohyoid muscle Superficial (investing) cervical fascia and cut edge , _L~,._-- Sternothyroid muscle Cricoid carti Iage -----r;;::.:::_-=----2.:._.:__---;--~ Trapezius muscle Deltoid muscle Clavicle Omohyoid muscle (inferior belly) Visceral (pretracheal) fascia Pectoralis major muscle over thyroid gland and trachea Sternocleidomastoid Suprasternal space (of Burns) } muscle Manubrium of sternum jugular notch lf;? .~/ ~ CIBA-GEtGY lnfrahyoid and Suprahyoid Muscles SEE ALSO PLATE 47 Hyoid bone Digastric muscle (anterior belly) Thyrohyoid membrane External carotid artery Stylohyo1d muscle Internal jugular vein :-=...:1.+-~---- Digastric muscle Thyrohyoid muscle (posterior belly) Fibrous loop for intermediate digastric tendon Omohyoid muscle (superior belly) ---------:!L Sternohyoid and omohyoid muscles (cut) Thyrohyoid muscle Cricoid cartilage Cricothyroid muscle Scalene muscles Omohyoid muscle (superior belly) (cut) Thyroid gland Omohyoid muscle .,.., (inferior belly) ~ Sternohyoid muscle (cut) Clavicle Mylohyoid muscle Digastric muscle (posterior belly) Oblique line of thyroid cartilage Omohyoid muscle (inferior belly) Sternothyroid muscle lnfrahyoid and suprahyoid muscles and Scapula their action: schema Scalene and Prevertebral Muscles Basilar part of Longus capitis muscle (cut) occipital bone Occipital condyle Rectus capitis anterior muscle Transverse process of atlas (C 1) Longus capitis muscle Tubercles of transverse } process of C3 vertebra Slips of origin of anterior Longus colli muscle scalene muscle (cut) Slips of origin of posterior scalene muscle Anterior Scalene Middle } Scalene muscles M1ddle { Posterior muscles 'I st rib Common carotid artery Subclavian vein Posterior tubercle of transverse process of C 7 vertebra Internal jugular vein PI ATE 25 .
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