1 / 43

POSTERIOR TRIANGLE OF NECK STEVEN J. ZEHREN, PH.D.

POSTERIOR TRIANGLE OF NECK STEVEN J. ZEHREN, PH.D. BOUNDARIES OF POSTERIOR TRIANGLE. STERNOCLEIDOMASTOID MUSCLE (SCM). Mastoid process. Sternal head. Clavicular head. TORTICOLLIS. TRAPEZIUS MUSCLE.

marly
Télécharger la présentation

POSTERIOR TRIANGLE OF NECK STEVEN J. ZEHREN, PH.D.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. POSTERIOR TRIANGLE OF NECK STEVEN J. ZEHREN, PH.D.

  2. BOUNDARIES OF POSTERIOR TRIANGLE

  3. STERNOCLEIDOMASTOID MUSCLE (SCM) Mastoid process Sternal head Clavicular head

  4. TORTICOLLIS

  5. TRAPEZIUS MUSCLE

  6. SUPERIOR ROTATION OF GLENOID FOSSA Superior trapezius Axis of rotation Inferior trapezius

  7. XI. SPINAL ACCESSORY N. SKELETAL MOTOR --- TO STERNOCLEIDOMASTOID & TRAPEZIUS MUSCLES XI STERNOCLEIDOMASTOID M. TRAPEZIUS M.

  8. ROOF OF POSTERIOR TRIANGLE

  9. Investing layer of deep cervical fascia Platysma m.

  10. FLOOR OF POSTERIOR TRIANGLE

  11. MUSCLES OF FLOOR OF POSTERIOR TRIANGLE Muscles of floor Splenius capitis m. Levator scapulae m. Post., mid., & ant. scalene mm.

  12. FASCIAL FLOOR OF POSTERIOR TRIANGLE Prevertebral layer of deep cervical fascia

  13. SCALENE MUSCLES Anterior scalene m. Middle scalene m. Posterior scalene m. Rib 1

  14. MUSCLES PRODUCING MOVEMENT OF THE CERVICAL INTERVERTEBRAL JOINTS

  15. INNERVATION OF PREVETEBRAL AND SCALENE MUSCLES VENTRAL RAMI:

  16. CONTENTS OF POSTERIOR TRIANGLE

  17. CONTENTS OF POSTERIOR TRIANGLE Great auricular n. Lesser occipital n. Accessory n. (XI) Transverse cervical a. Omohyoid m. (inferior belly) Brachial plexus Suprascapular a. Subclavian a. (3rd part)

  18. OMOHYOID MUSCLE

  19. OMOHYOID MUSCLE Omohyoid (superior belly) Omohyoid m. (inferior belly)

  20. NERVES

  21. Jugular f. F. magnum C2 spinal n. Acessory n. (XI) Sternocleidomastoid m. C3 spinal n. C4 spinal n. Trapezius m. Efferent fibers Afferent fibers

  22. 5 Roots (vental rami) 3 Trunks 3 ant. Divisions 3 post. Divisions C5 C6 Superior 3 Cords C7 Middle C8 5 terminal Branches Inferior T1 Lateral Musculocutaneous n. Posterior Axillary n. Medial Radial n. “Roger Travis Drinks Cold Beer” Median n. Ulnar n.

  23. BRACHIAL PLEXUS IN RELATIONSHIP TO CLAVICLE

  24. FIVE COMPONENTS OF CERVICAL PLEXUS: XII XI Cutaneous NerveS C1 Motor Nerves To Prevertebral Muscles Ansa Cervicalis: C2 SUPERIOR ROOT C3 Contributions From C3 & C4 To XI INFERIOR ROOT C4 ANSA Phrenic Nerve

  25. CUTANEOUS BRANCHES OF THE CERVICAL PLEXUS CERVICAL PLEXUS Lesser occipital n. (C2,3) Great auricular n.(C2,3) Transverse cervical n. (C2,3) Supraclavicular nn. (C3,4)

  26. VESSELS

  27. ARTERIES IN POSTERIOR TRIANGLE 1 3

  28. ARTERIES IN POSTERIOR TRIANGLE TRANSVERSE CERVICAL A. THYROCERVICAL TRUNK SUPRASCAPULAR A.

  29. EXTERNAL JUGUAR VEIN Superficial temporal v. Maxillary v. Facial v. Posterior auricular v. Retromandibular v. Common facial v. (to IJV) External jugular v. Transverse cervical v. Suprascapular v. Anterior jugular v. Subclavian v.

  30. INTERSCALENE TRIANGLE

  31. BOUNDARIES & CONTENTS OF THE INTERSCALENE TRIANGLE Anterior scalene m. Middle scalene m. Brachial plexus Subclavian a. Rib 1

  32. Anterior scalene m. Middle scalene m. Cervical rib compresses subclavian a.

  33. Lower trunk of brachial plexus elevated by cervical rib

  34. ANTERIOR RELATIONSHIPS OF ANTERIOR SCALENE MUSCLE Ascending cervical a. Anterior scalene m. Phrenic n. Inferior thyroid a. Transverse cervical a. Suprascapular a. Thyrocervical trunk Subclavian v.

  35. SUBCLAVIAN VEIN PUNCTURE

  36. CERVICAL PLEURA (CUPULA) Cervical pleura

  37. DEEP FASCIAE OF NECK

  38. Investing fascia Retropharyngeal space Pretracheal fascia * Buccopharyngeal fascia * Carotid sheath Common carotid a. Internal jugular v. Vagus n. Prevertebral fascia * = Component of visceral fascia

  39. Base of skull Buccopharyngeal fascia Retropharyngeal space Prevertebral fascia Mediastinum

  40. END OF LECTURE

More Related