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FASCIAE MUSCLES NERVES VESSELS

FASCIAE MUSCLES NERVES VESSELS. FACE. http://video.msn.com/v/us/msnbc.htm?f=00&g=a894b61f-d02a-4378-ab85-449808110229&p=News_NBC%20News&t=m5&rf=http://www.msnbc.msn.com/id/10803863/&fg=. Isabelle Dinoire. SURFACE ANATOMY. FASCIAE.

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FASCIAE MUSCLES NERVES VESSELS

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  1. FASCIAE MUSCLES NERVES VESSELS FACE

  2. http://video.msn.com/v/us/msnbc.htm?f=00&g=a894b61f-d02a-4378-ab85-449808110229&p=News_NBC%20News&t=m5&rf=http://www.msnbc.msn.com/id/10803863/&fg=http://video.msn.com/v/us/msnbc.htm?f=00&g=a894b61f-d02a-4378-ab85-449808110229&p=News_NBC%20News&t=m5&rf=http://www.msnbc.msn.com/id/10803863/&fg= Isabelle Dinoire

  3. SURFACE ANATOMY

  4. FASCIAE

  5. The skin of the face possesses numerous sweat and sebaceous glands. • It is connected to the underlying bones by loose connective tissue, in which are embedded the muscles of facial expression. • No deep fascia is present in the face. Dr. L. Tchakarov

  6. Wrinkle lines of the face result from the repeated folding of the skin perpendicular to the long axis of the underlying contracting muscles, coupled with the loss of youthful skin elasticity. Dr. L. Tchakarov

  7. Surgical scars of the face are less conspicuous if they follow the wrinkle lines. Dr. L. Tchakarov

  8. MUSCLES

  9. INTRODUCTION The muscles of the face are embedded in the superficial fascia, and most arise from the bones of the skull and are inserted into the skin. Dr. L. Tchakarov

  10. The orifices of the face, namely, the orbit, nose, and mouth, are guarded by the eyelids, nostrils, and lips, respectively. • The facial muscles serve as sphincters • or dilators of these structures. Dr. L. Tchakarov

  11. A secondary function of the facial muscles is to modify the expression of the face. Dr. L. Tchakarov

  12. All the muscles of the face are developed from the second pharyngeal arch and are supplied by the facial nerve.

  13. MUSCLES OF THE EYELIDS The dilator muscles are: • the levator palpebrae superioris and • the frontal belly of the occipitofrontalis. Dr. L. Tchakarov

  14. Levator palpebrae superioris: • Origin: lesser wing of the sphenoid bone, close to the optic canal. • Insertion: into the superior tarsal plate. • Innervation: oculomotor nerve. Dr. L. Tchakarov

  15. The occipitofrontalis forms part of the scalp. • Action: both muscles raise the upper eyelid. Dr. L. Tchakarov

  16. SPHINCTER OF THE EYELIDS: ORBICULARIS OCULI It has two parts: • Palpebral part and • Orbital part Dr. L. Tchakarov

  17. Palpebral part: • Origin: medial palpebral ligament • Insertion: lateral palpebral raphe • Innervation: facial nerve • Function: closes eyelids and dilates lacrimal sac • Orbital part: • Origin: medial palpebral ligament and adjoining bone • Insertion: loops return to origin • Innervation: facial nerve • Function: throws skin around orbit into folds to protect eyeball

  18. CORRUGATOR SUPERCILII Origin: supercilliary arch Insertion: skin of eyebrow

  19. Action: Draws eyebrow medially and inferiorly, creating vertical wrinkles above nose Dr. L. Tchakarov

  20. MUSCLES OF THE NOSTRILS The sphincter muscle is the compressor naris. • Origin: frontal process of maxilla • Insertion: aponeurosis of bridge of nose • Innervation: facial nerve Dr. L. Tchakarov

  21. Action: compresses the mobile nasal cartilages. Dr. L. Tchakarov

  22. The dilator muscle is the dilator naris. • Origin: maxilla • Insertion: ala of nose • Innervation: facial nerve Dr. L. Tchakarov

  23. Action: widens nasal aperture Dr. L. Tchakarov

  24. Procerus • Origin: nasal bone • Insertion: skin between eyebrows • Innervation: facial nerve Dr. L. Tchakarov

  25. Action: wrinkles skin of nose Dr. L. Tchakarov

  26. MUSCLES OF THE LIPS AND CHEEKS • The sphincter muscle is the orbicularis oris. • The dilator muscles consist of a series of small muscles that radiate out from the lips. Dr. L. Tchakarov

  27. SPHINCTER MUSCLE OF THE LIPS: ORBICULARIS ORIS Origin and insertion: The fibers encircle the oral orifice within the substance of the lips. Dr. L. Tchakarov

  28. Some of the fibers arise near the midline from the maxilla above and the mandible below. • Other fibers arise from the deep surface of the skin and pass obliquely to the mucous membrane lining the inner surface of the lips. • Many of the fibers are derived from the buccinator muscle. Dr. L. Tchakarov

  29. Nerve supply:Buccal and mandibular branches of the facial nerve. Dr. L. Tchakarov

  30. Action: Compresses the lips together Dr. L. Tchakarov

  31. DILATOR MUSCLES OF THE LIPS • The dilator muscles radiate out from the lips. • The muscles arise from the bones and fascia around the oral aperture and convergeto be inserted into the substance of the lips. • Their action is to separate the lips; this movement is usually accompanied by separation of the jaws.

  32. Traced from the side of the nose to the angle of the mouth and then below the oral aperture, the muscles are named as follows: • Levator labii superioris alaeque nasi • Levator labii superioris • Zygomaticus minor • Zygomaticus major Dr. L. Tchakarov

  33. Risorius • Depressor anguli oris • Depressor labii inferioris • Mentalis Dr. L. Tchakarov

  34. Levator anguli oris (deep to the zygomatic muscles). Dr. L. Tchakarov

  35. Nerve Supply: Buccal and mandibular branches of the facial nerve.

  36. MUSCLE OF THE CHEEK Buccinator • Origin:From the outer surface of the alveolar margins of the maxilla and mandible opposite the molar teeth and from the pterygomandibular ligament. Dr. L. Tchakarov

  37. Insertion: • The muscle fibers pass forward, forming the muscle layer of the cheek. • The muscle is pierced by the parotid duct. • At the angle of the mouth the central fibers decussate, those from below entering the upper lip and those from above entering the lower lip. • The highest and lowest fibers continue into the upper and lower lips, respectively, without intersecting. • The buccinator muscle thus blends and forms part of the orbicularis oris muscle. Dr. L. Tchakarov

  38. Nerve supply: Buccal branch of the facial nerve

  39. Action: Compresses the cheeks and lips against the teeth

  40. TEST YOUR KNOWLEDGE

  41. “REJECTION” List the muscles of facial expression which are activated. • ………………….. • ………………….. • ………………….. • ………………….. • ………………….. Dr. L. Tchakarov

  42. “SURPRISE” List the muscles of facial expression which are activated. • ………………….. • ………………….. • ………………….. • ………………….. • ………………….. Dr. L. Tchakarov

  43. “FEAR” List the muscles of facial expression which are activated. • ………………….. • ………………….. • ………………….. • ………………….. • ………………….. Dr. L. Tchakarov

  44. “DETERMINATION” List the muscle(s) of facial expression which are activated. • ………………….. • ………………….. • ………………….. • ………………….. • ………………….. Dr. L. Tchakarov

  45. “IRONY” List the muscles of facial expression which are activated. • ………………….. • ………………….. • ………………….. • ………………….. • ………………….. Dr. L. Tchakarov

  46. “LAUGHTER” List the muscles of facial expression which are activated. • ………………….. • ………………….. • ………………….. • ………………….. • ………………….. Dr. L. Tchakarov

  47. “CRYING” List the muscles of facial expression which are activated. • ………………….. • ………………….. • ………………….. • ………………….. • ………………….. Dr. L. Tchakarov

  48. NERVES

  49. TRIGEMINAL NERVE

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