Head and Neck

4,929 views

Published on

Anatomy of Head and Neck

0 Comments
31 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
4,929
On SlideShare
0
From Embeds
0
Number of Embeds
13
Actions
Shares
0
Downloads
248
Comments
0
Likes
31
Embeds 0
No embeds

No notes for slide

Head and Neck

  1. 1. BIO 226 Cross-sectional Anatomy Head & Neck presented by John Moore – Professor Parkland College
  2. 2. Structure list • CCA/ICA/ECA • choroid plexus • crista galli • dens (odontoid process) • esophagus • external auditory meatus • falx cerebri • frontal sinus • hard palate • IHF - inter hemispheric fissure (a.k.a. - longitudinal fissure) • IJV/EJV • larynx • MAC
  3. 3. Structure list (cont.) • maxillary sinus • nasal cavity • nasal conchae (turbinates) • nasal septum • nasopharynx/oropharynx • optic n. • pituitary gland • rectus mm. • septum pellucidum • spinal cord • superior sagittal sinus • thyroid gland • trachea • transverse foramen • ventricles (lateral, 3rd., 4th.) • vertebral a.
  4. 4. • The head & neck region has several characteristics that make it difficult to comprehend, and several that make it easy. The major concept that adds difficulty is the amount of detail that is found in the head & neck regions. (As an example, the Dental Hygiene Program offers a complete course in Head & Neck Anatomy!!!!) Fortunately, for an introductory level course such as this, we will not be going into tremendous amounts of detail -- only basic reference structures.
  5. 5. The good news is that the head & neck have more symmetry than any other area of the body. This symmetry is not only useful for study purposes, but also for diagnostics. Generally, if you see something on one side of the head/neck, and you don’t see it on the other -- something is wrong somewhere.
  6. 6. Some of the “applied” anatomy concepts we will be covering during the head & neck segment will include: • the concept of a “closed” cranial cavity • blood supply to/from the head • communication between intracranial and extra cranial blood systems • blood supply of the brain itself • a brief overview of the regions of the brain, and associated functions
  7. 7. Zygomatic arch Sternocleidomastoid m. Platysma m.
  8. 8. Sternothyroid m. Sternohyoid m. SCM Hyoid bone Scalene muscles R1 clavicle Thyroid carilage GENERAL NECK ANATOMY
  9. 9. sphenoid nasal maxilla zygomatic lacrimal ethmoid Perpendicular plate of ethmoid
  10. 10. sphenoid frontal parietal temporal occipital external auditory meatus TMJ mastoid process ethmoid
  11. 11. Palatine (hard palate) Perpendicular plate Septal cartilage vomer Sphenoid sinus Sella turcica Cribriform plate of ethmoid Frontal sinus
  12. 12. Cribriform plate / ethmoid Sella turcica / sphenoid Crista galli / ethmoid Foramen magnum Anterior clinoid process Posterior clinoid process
  13. 13. Cribriform plate ETHMOID – FRONTAL VIEW Crista galli Perpendicular plate Middle nasal concha
  14. 14. Cribriform plate Crista galli Perpendicular plate
  15. 15. Ethmoid air cells Maxillary sinus Frontal sinus Sphenoidal sinus
  16. 16. Maxillary sinuses Ethmoid air cells Frontal sinus Spenoid sinus
  17. 17. Frontal sinus Perpendicular plateMaxilla
  18. 18. Ethmoid sinus
  19. 19. conchae Maxillary sinus
  20. 20. Frontal sinus Mastoid air cells
  21. 21. Sphenoid sinus MAC
  22. 22. Foramen magnum MAC
  23. 23. brain Pia mater Arachnoid mater Dura mater Subarachnoid space Subdural space
  24. 24. parietal lobe occipital lobe cerebellum central sulcus (fissure) temporal lobe medulla pons brain stem frontal lobe
  25. 25. spinal cord medulla oblongata pons cerebral aqueduct pituitary gland corpus callosum cerebellum 4th ventricle
  26. 26. Lateral ventricle 3rd ventricle 4th ventricle Frontal hornOccipital horn Temporal horn Cerebral aqueduct Foramen of Monro
  27. 27. POSTERIOR VIEW SUPERIOR VIEW 4th ventricle 4th ventricle Cerebral aqueduct
  28. 28. Superior sagittal sinus Transverse sinus Internal jugular vein Confluence of sinuses Straight sinus Sigmoid sinus Inferior sagittal sinus Falx cerebri
  29. 29. CIRCLE OF WILLIS Anterior cerebral artery Anterior communicating artery Middle cerebral artery Internal carotid artery Posterior communicating artery Posterior cerebral artery Basilar artery Vertebral artery
  30. 30. Longitudinal fissure S.S.S. Frontal bone
  31. 31. Falx cerebri Body of right lateral ventricle
  32. 32. Septum pellucidum Body of right lateral ventricle Choroid plexus
  33. 33. Anterior horn Left lateral ventricle
  34. 34. 3rd ventricle thalamus
  35. 35. Frontal sinus 4th ventricle cerebellum cerebellum
  36. 36. pituitary Anterior clinoidPosterior clinoid
  37. 37. S.S.S. S.S.S. Longitudinal fissure skull scalp
  38. 38. Body of right lateral ventricle Corpus callosum
  39. 39. Right lateral ventricle Septum pellucidum
  40. 40. Anterior horn right lateral ventricle Posterior horn left lateral ventricle
  41. 41. Optic n. Cerebral aqueduct Globe of eye
  42. 42. pons 4th ventricle cerebellum cerebellum
  43. 43. Neck oropharynx nasopharynx laryngopharynx Vocal cords Sphenoid sinus Frontal sinus
  44. 44. Salivary Glands • Sublingual • Parotid • Submandibular
  45. 45. Parotid gland Accessory parotid gland Stenson’s duct Wharton’s duct Sublingual gland Submandibular gland
  46. 46. epiglottis hyoid Thyroid cart. Cricoid cart. Corniculate cart. Arytenoid cart. Laryngeal prominence trachea
  47. 47. Thyroid Gland • Right/left lobe • Pyramidal lobe • Location in neck • Contains iodine
  48. 48. Pyramidal lobe isthmus Left lobe Right lobe trachea
  49. 49. Blood Vessels • Arteries – Right/left common carotid • Right/left internal carotid • Right/left external carotid – Vertebral
  50. 50. Blood Vessels • Veins – Internal jugular – drains into subclavian – External jugular – drains into subclavian
  51. 51. IJV pharynx SCM Spinal cord
  52. 52. epiglottis SCM Erector spinae m. IJV VA CCA
  53. 53. ECA ICAIJV
  54. 54. Hyoid bone
  55. 55. Submandibular salivary gland
  56. 56. Thyroid cartilage
  57. 57. WHERE IS THE ESOPHAGUS?
  58. 58. Notice differences in CCA/ICA/ECA on the two sides
  59. 59. Thyroid gland
  60. 60. trachea FINALLY – a good look at the esophagus!!!!
  61. 61. 49 yo female with progressive weakness
  62. 62. • CT precontrast • C

×