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Presentation on theme: "Scalp."— Presentation transcript:

1 Scalp



4 Arteries of head & neck

5 Branches of subclavian & axillary arteries
Branches of subclavian artery Branches of axillary artery Thyrocervical trunk Dorsal scapular a. Internal mammary a. Superior thoracic a. Thoracoacromial a. Lateral thoracic a. Posterior circumflex humeral a. Anterior circumflex humeral a. Subscapular a.

6 Vertebral artery Vertebral a.

7 External Carotid Artery
Branches of ECA 6- Posterior auricular a.: running along upper border of posterior belly of digastric m. Superficial temporal artery: the artery of anaesthist. Terminal branches Maxillary a. 5- Occipital a.: running along the lower border of posterior belly of digastric m. 4- Facial a. 3- Lingual a. External Carotid Artery 2- Ascending laryngeal a.: not shown 1- Superior thyroid a.: 1st branch of external carotid.

8 Veins of head & neck

9 Tributaries of EJV Maxillary v. (drains pterygoid plexus of v.)
Superficial temporal v. Retromandibular (posterior facial) v.: traverses parotid gland Anterior division of retromandibular v. Posterior division of retromandibular v. Posterior auricular v. (anterior) facial v. External jugular v. Common facial v.

10 Anterior facial vein Supratrochlear BVs Supraorbital BVs
External jugular v. pierces superficial fascia to join the internal jugular v.

11 Internal jugular vein & subclavian vein
Internal jugular v. (the continuation of sigmoid sinus) Subclavian v. SVC

12 Carotid sheath

13 Superficial relations of carotid sheath
Posterior belly of digastric Ansa cervicalis Omohyoid

14 Carotid sheath

15 Internal carotid a. External carotid a. Internal jugular v Common carotid a.

16 Styloglossus muscle Internal carotid artery Internal Jugular Vein External carotid artery Common carotid artery

17 Muscles of head & neck

18 Muscles of the head Epicranial aponeurosis
Occipitalis m. (part of occipitofrontalis m.) Temporalis Orbicularis occuli m. Occipitalis m. (part of occipitofrontalis m.) Auricular muscles (superior, anterior & posterior) Orbicularis oris Buccinator Masseter m. Muscles of mastication (supplied by mandibular n.) Muscles of facial expression (supplied by facial n.)

19 Muscles of mastication (1)
Temporalis m. Masseter m.

20 Muscles of mastication (2)
Lateral pterygoid Medial pterygoid Buccinator

21 Superior oblique muscle of the eye (suplied by trochlear n.)

22 Constrictor muscles of the pharynx
Superior constrictor Middle constrictor Inferior constrictor

23 Styloid apparatus Styloglossus muscle Stylohyoid muscle
Posterior belly of digastric muscle

24 Scalenus anterior muscle (1)
Brachial plexus Upper trunk of brachial plexus Subclavian v. Lt. innominate v. Subclavian a. Subclavian a.

25 Scalenus anterior muscle (2)
Phrenic n. Subclavian v. Subclavian v. Brachial plexus Subclavian a.

26 Salivary glands

27 Parotid gland Accessory lobe of parotid gland Parotid duct Submandibular gland

28 Nerves of head & neck

29 Vagus nerve Vagus n. Styloglossus m.

30 Sympathetic chain Superior sympathetic ganglion
Middle sympathetic ganglion Inferior symathetic ganglion (stellate)

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