Head and Neck Human Anatomy (Muscles)
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Head and Neck Human Anatomy (Muscles) by DR RAI M. AMMAR www.facebook.com/drraiammar www.twitter.com/drraiammar www.instagram.com/drraiammar www.linkedin.com/in/drraiammar www.themedicall.com/blog/auther/drraiammar/ For Any Book or Notes Visit Our Website: www.allmedicaldata.wordpress.com www.drraiammar.blogspot.com YOUTUBE CHANNEL : https://www.youtube.com/channel/UCu-oR9V3OdFNTJW5yqXWXxA ANY QUESTION ?? Get in touch with us at Any of the Above Social Media or Email at drraiammar@gmail.com allmedicaldata@gmail.com
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Head and Neck Human Anatomy (Muscles)
- 1. DR RAI M. AMMAR MADNI ( M.B.B.S , RMP ) 01-08-2018
- 2. Muscles of the Epicranium (Scalp) • Scalp Epicranius-frontalis/occipitalis • Temporoparietalis • Occipitofrontalis: – frontal and occipital bellies – separated by epicranial aponeurosis • Platysma: – covers anterior surface of neck
- 4. Muscles of the Head Figure 7-12(a)
- 5. Muscles of the Head and Neck Figure 7-12(a)
- 6. Muscles of the Head and Neck • Muscles of the Head and Neck Figure 7-12(c)
- 8. Muscles of the Neck Muscles of Neck that Move the Head • Sternocleidomastoid • Scalenes • Semispinalis capitis • Splenius capitis • Longissimus capitis
- 9. Muscles of Neck that Move the Head Sternocleidomastoid Origin: sternum and clavicle Insertion : mastoid process Action : together: flex the neck individually : laterally rotate and flex the head to the side opposite the contraction.
- 10. Muscles of Neck that Move the Head • Semispinalis capitis • Splenius capitis • Longissimus capitis
- 11. Neck Muscles scalenes levator scapula splenius capitus
- 12. Anterolateral Muscles of Neck Mylohyoid Digastric Anterior belly Posterior belly Sternocleidomastoid Geniohyoid Hyoid bone Clavicle Superficial Deep Sternocleidomastoid ( cut)
- 13. Neck Muscles trapezius splenius capitius levator scapula scalenes sternocleidomastoid digastric
- 14. 10-14 Posterior Muscles of Neck Semispinalis capitis Splenius capitis Deep Deeper Trapezius (cut)
- 15. Fig. 11.08a
- 16. Deep Anterior muscles of neck control position of larynx depress the mandible support tongue and pharynx
- 17. Fig. 11.08b
- 18. Muscles of Anterior Neck • Muscles of the Anterior Neck Figure 7-13
- 19. Muscles of Anterior Neck Figure 11–9
- 20. 10-20 Hyoid Muscles Actions of hyoid muscles • move mandible and hyoid Fig. 11.8 Mylohyoid Digastric Anterior belly Posterior belly Geniohyoid Hyoid bone Clavicle Superficial Deep Mylohyoid Digastric Anterior belly Posterior belly
- 21. More Specific Muscle Groups: “Strap” muscles of the neck • Digastric • Stylohyoid • Mylohyoid • Geniohyoid • Omohyoid • Sternohyoid • Sternothyroid • Thyrohyoid Action depends on the relationship of the muscle to the hyoid bone: Suprahyoid muscles elevate the hyoid bone Infrahyoid muscles depress the hyoid bone
- 23. Muscles of the Neck • Digastric: – from chin to hyoid – also hyoid to mastoid • Platysma: – covers anterior surface of neck • Sternocleidomastoid: – from clavicle and sternum to mastoid
- 24. Other Neck Muscles • Platysma - broad surface muscle covering the neck and chin muscles • Lateral Pterygoid – deep muscle attachments to the mandible and lateral pterygoid process • Medial Pterygoid - deep muscle attachments to the mandible and medial pterygoid process. • TMJ - temporomandibular joint
- 25. Summary Anterior Muscles of the Neck
- 26. Extrinsic Muscles of the Eye Recti: • Superior rectus • Inferior rectus • Medial Rectus • Lateral Rectus • Obliques: • Superior Oblique • Inferior Oblique
- 28. Extrinsic Muscles of Eye superior rectus lateral rectus medial rectus inferior rectus superior oblique
- 29. Muscles of Mastication Move the mandible • Masseter: – the strongest jaw muscle • Temporalis: (sphenomandibularis) – helps lift the mandible • Pterygoid muscles (lateral, medial) – position mandible for chewing • fascia: Masseteric fascia · Temporal fascia
- 30. 10-30 Muscles of Mastication Major Muscles • Temporalis and Masseter Temporalis: Origin - temporal lines of parietal Insertion - coronoid process Masseter: Origin - zygomatic arch Insertion - lateral side of mandible
- 32. Summary: Muscles of Mastication
- 33. 10-33 Muscles of Face Points to Remember • Muscles of the face move the skin rather than a joint allowing a vast range of facial expressions • Muscles that move the mandible are also known as muscles of mastication because they provide the chewing action • Complexity of muscles of the vertebral column required for flexibility and maintaining posture
- 34. Muscles of Face • Ear • auricular (anterior, superior, posterior) · temporoparietalis • Scalp / Eyelid • occipitofrontalis (occipitalis, frontalis) · orbicularis oculi (depressor supercilii) sphincter of eye • corrugator supercilii wrinkles forehead • Fascia • Galea aponeurotica
- 35. Muscles of Face • Nose • procerus · nasalis (diltator naris) · depressor septi nasi · levator labii superioris alaeque nasi • Mouth • levator anguli oris • levator labii superioris - raises upper lip • zygomaticus (major, minor) - pull skin of mouth up and out when smiling • orbicularis oris - constricts the mouth opening • · risorius · buccinator - moves food around the cheeks • depressor anguli oris • depressor labii inferioris - “pouting” muscle • mentalis
- 36. Muscles of Face levator labii superioris alaeque nasi ORIGIN Upper frontal process of maxilla INSERTION Skin of lateral nostril and upper lip ACTION Dilates nostril and elevates upper lip
- 37. 10-37 Muscles of Facial Expression Fig. 11.2 Elevators • Levator labii superioris, Occipitofrontalis, Zygomaticus Depressors • Depressor labii inferioris, Platysma Other actions • Buccinator, Orbicularis oculi, Orbicularis oris Superficial Deep Frontal belly of occipitofrontalis Orbicularis oculi Levator labii superioris Zygomaticus Depressor labii inferioris Platysma Platysma Depressor labii inferioris Orbicularis oris Zygomaticus Levator labii superioris Orbicularis oculi Temporalis Masseter Orbicularis oris Buccinator
- 39. Facial Muscles frontalis orbicularis oculi Zygomaticus major minor corrugator supercilia nasalis
- 40. depressor labii inferioris Facial Muscles orbicularis oris mentalis levator labii superioris depressor anguli oris
- 41. Muscles of Mouth & throat Begin swallowing process • Soft Palate : • veli palatini (tensor, levator) · • musculus uvulae • palatopharyngeus (to pharynx) • palatoglossus (to tongue)
- 42. Muscles of the Tongue • Extrinsic • (genioglossus, • hyoglossus/chondroglossus, • styloglossus, and • palatoglossus • Intrinsic • superior longitudinal, • inferior longitudinal, • transverse, • vertical
- 43. Muscles of the Tongue Don’t need to know any of these
- 44. 10-44 Muscles of Facial Expression Fig. 11.3
- 45. Summary Muscles of Facial Expression Table 11–2 (1 of 2)
- 46. Summary Muscles of Facial Expression Table 11–2 (2 of 2)
- 47. 01-08-2018 GET IN TOUCH AT: www.facebook.com/drraiammar www.twitter.com/drraiammar www.instagram.com/drraiammar www.linkedin.com/in/drraiammar www.themedicall.com/blog/auther/drraiammar/ For Any Book or Notes Visit Our Website: www.allmedicaldata.wordpress.com www.drraiammar.blogspot.com YouTube Channel : https://www.youtube.com/channel/UCu-oR9V3OdFNTJW5yqXWXxA BY: DR RAI M. AMMAR MADNI ( M.B.B.S , RMP )