LAB 9 THE NECK AND SENSE ORGANS
I. Histology
1. Olfactory Epithelium - note receptors and glands
2. Retina - note layers of cells; identify rods and cones
3. Cochlea - identify the parts we discussed in class
4. Thyroid & Parathyroid - identify acini and thyroid colloid
5. Tongue - general structure
6. Vallate Papilla - note receptors (taste buds)
7. Tooth - identify enamel, dentin and pulp.
8. Submandibular Gland - what type of tissue is this?
II. Skeletal Material
A. Ear Ossicles in plastic block
1. malleus
2. incus
3. stapes
B. Dissected Temporal Bone
1. internal carotid artery
2. internal jugular vein
3. statoacoustic nerve
4. facial nerve
5. cochlea
6. semicircular canals
7. tympanic membrane
III. Models
A. Respiratory
Organ Model
Part A. - Larynx
1. Hyoid Bone
2. Epiglottis cartilage
3. Thyroid Cartilage
4. Small Cartilaginous Nodule
5. Arytenoid Cartilage
6. Ventricle of Larynx
7. Ventricular Ligament (False Vocal Cord)
8. Vocal Ligament (True Vocal Cord)
9. Thyrohyoid membrane
10. Middle Thyrohyoid Ligament
11. Fatty Tissue
12. Cricoid Cartilage
13. Crycothyroid Ligament
14. Ceratocricoid Ligaments
15. Posterior Cricothroid Ligament
B. Larynx Model
1. Hyoid Bone
a. Body
b. Greater cornu
c. Lesser cornu
2. Thyroid Cartilage
d. Superior Horn
e. Inferior Horn
3. Cricoid Cartilage
4. Arytenoid Cartilage
5. Corniculate Cartilage
6. Cuneiform tubercle
7. Trachael Cartilage
8. Thyrohyoid membrane
9. Thyrohyoid Ligament
10. Antero-inferior Cricothyroid Ligament
11. Cricothyroid Ligament
12. Cricotrachael Membrane
13. Elastic Tissue
14. Fibrous portion of Trachea
15. Thyrohyoid Muscle
16. Cricothyroid Muscle
17. Posterior Cricoartenoid Muscle
18. Lateral Cricoarytenoid Muscle
19. Arytenoideus Muscle
20. Superior Laryngeal Artery
21. Internal Laryngeal Artery
22. Superior Laryngeal Nerve
23. Epiglottis
24. Hyoepiglottic Ligament
25. Thyroepiglottic Ligament
26. Conus elasticus
27. Vestibular Fold
28. Vocal Fold (ligament within)
29. Vocalis Muscle
30. Trachea
31. Aryepiglottic Fold
32. Piriform Recess
C.
Working Larynx Model
See how the muscles work by pulling the cords.
D. New
Eye in Orbit Model (Carolina)
1. Superior rectus muscle
2. Orbital fat
3. Tendon of superior oblique
4. Lateral Rectus
5. Vorticose vein
6. Ciliary
body )
Ciliary muscles
) Ciliary processes
7. Ora serrata
8. Central vessels of retina passing into optc nerve
9. Central vessels of retina on retina
10. Optic disc
11. Retina
12. Chorioid
13. Sclera
14. Fovea centralis
15. Cornea
16. Iris
17. Lens
18. Ciliary ganglion
19. Central artery of retina
20. Long posterior ciliary arteries
21. Short posterior ciliary artery
22. Ciliary nerves
23. Inferior rectus
24. Inferior oblique
25. Medial rectus
26. Superior oblique
27. Anterior ciliary artery
28. Opthalmic artery
29. Optic nerve
30. Optic chiasma
31. Optic track
32. Pituitary stalk
33. Carotid artery
34. Cavernous sinus (partially dissected)
35. Opthalmic veins
36. Sphenoid sinus
37. Cribiform plate
38. Frontal sinus
40. Lacrimal sac
E. Large
Eyeball Model (Five-Part Eyeball)
Note: Numbers 6-9 and 11-14 are not painted on the Eye Model due to area imitiations.
1. Superior Rectus Muscle
2. Sclera
3. Chorioid Layer
4. Retina
5. Vitreous Body
6. Conjunctiva
7. Ciliary Body
8. Suspensory Ligament
9. Iris
10. Cornea
11. Aqueous Humor
12. Lens
13. Pupil
14. Ciliary Muscle
15. Inferior Rectus Muscle
16. Optic Nerve
17. Blind Spot
18. Yellow Spot
19. Internal Rectus Muscle
20. External Rectus Muscle
21. Tendon of Superior Oblique Muscle
23. Lacrimal Gland
Key for
Rods and Cones (As illustrated on the
Vitreous Body #5 and for the Retina #4)
A. Pigmented layer
B. Layer of rods and cones
C. External limiting membranes
D. Outer nuclear layer
E. Outer plexiform layer
F. Inner nuclear layer
G. Inner plexiform layer
H. Ganglionic layer or layer of nerve cells
I. Stratum oticum or layer of nerve fibers
K. Internal limiting membrane
L. Rods
M. Rod Granules
N. Cones
O. Cone granules
P. Horizontal cells
Q. Bipolar cells
R. Amacrine cells
S. Sustenacular fibers of Muller
T. Ganglionic cells
F. The Organ of Hearing (Large Ear with Pinna Model)
The
External Ear
I. Auricle
1. Helix
2. Scaphoid cavity
3. Antihelix
4. Crus of the antihelix
5. Triangular fossa
6. Tragus
7. Antitragus
8. Intertragical incision
9. Lobule of the ear
10. External auditory meatus
11. The drum membrane
12. The tympanic annulus
13. Arteries of the drum membrane
14. The arcuate eminence
15. The pyramid
16. The internal carotid artery
17. The internal auditory meatus
18. The sylo-mastoid foramen
19. The styloid processus
20. The jugular fossa
21. The internal carotid artery
The
Middle Ear
22. The tympanic cavity
23. Position, where the Eustachian tube enters the tympanic cavity
24. Ostium of the Eustachian tube
25. Malleus
a. head of the malleus
b manubrium
c. lateral process
26. Incus
a. short crus
b. long crus
27. Stapes
a. head of the stapes
b. crus
c. base of the stapes
28. Lentiform nodule of incus
29. Cord of the tympanum
30. Tensor tympani muscle
The
Internal Ear or Labyrinth
31. The vestibule
32. The oval window
33. Promontory
34. The cochlear window
35. The external semicircular canal
36. The upper semicircular canal
37. The posterior semicircular canal
The entrances a, b, and c are enlarged and are called ampullae
38. The cochlea
a. basal turn
b. middle turn
c. top turn
39. The osseous spiral lamina
40. Scala of the tympanum
41. Scala of the vestibule
42. the saccule
43. The utricle
44. The semicircular ducts
45. The acoustic nerve
46. One branch
47. the other branch
48. the facial canal
G. Ear
with Pinna Cut Model
1. Stapes
2. Incus
3. Malleus
4. Tympanic membrane, pars flaccida
5. Tympanic membrane, pars tensa
6. Anterior semicurcular canal
7. Lateral semicircular canal
8. Posterior semicircular canal
9. Fenestra cochleae
10. Fenestra vestibuli
11. Vestibulum
12. Cochlea
13. Ampulla
14. Geniculate ganglion
15. Temporal bone
16. Zygomatic bone
17. Eustachian tube
18. Tensor tympani muscle
19. Petrosus major nerve
20. Epitympanic cavity
21. Chorda tympani
22. auditory meatus, bony portion
23. Helix )
24. Antihelix )
25. Concha )
26. Antitragus ) Pinna
27. Tragus )
28. Lobe )
29. External auditory meatus, cartilaginous portion
30. Annulus tympanicius
31. Tympanic cavity
32. Eustachian tube
33. Facial nerve
34. Cochlear nerve
35. Vestibular nerve
36. Ceruminous gland
37. Sebaceous gland
38. Ear cartilage
39. Transversus auriculae muscle
40. Auricularis nuchalis muscle
41. Mastoid sinus
42. Mastoid bone
43. Posterior auricularis vein
42. Mastoid bone
43. Posterior auricularis vein
44. Splenius capitis muscle
45. Jugular vein
46. Endolymphatic duct
47. Endolymphatic sac
48. Labyrinthine artery
Central cochlear vein
49. Internal carotid artery
50. Stylopharyngeous muscle
51. Stylohyoid muscle
52. Stylohoid process
53. Parotid gland
54. Tragicus muscle
55. Lamina tragi
H. Small
Ear Model
1. External auditory meatus
2. Tympanic membrane
3. Tympanic ring
4. Facial nerve
5. Eustachian tube, entrance
6. Central end of same
7. Malleus
a. capitulum (head)
b. manubrium (handle)
c. processus brevis
8. Incus
a. crus breve
b. crus longum
9. Stapes
a. capitulum (head)
b. crura stapedis
c. basis (footplate)
10. Processus lentricularis
11. Chorda tympani
12. Musculus tensor tympani
13. Vestibule
14. Fenestra vestibuli
15. Promontorium
16. Fenestra cochleae
17. Lateral semicircular canal
a. ampulla lateralis
18. Superior semicircular canal
b. ampulla superior
19. Posterior semicircular canal
c. ampulla posterior
20. Cochlea
21. Auditory nerve
22. Scala vestibuli
23. Scala tympani
24. Ductus cochlearis
25. Organ of Corti
A. External ear
B. Middle ear
C. Internal ear
I. The Labyrinth Model
A. Osseous labyrinth
B. Membranous labrinth
1. Vestibule
1a. Fenestra of the vestiblule
1b. Fenestra of the cochlea
1c. Secondary tympanic membrane
2. Lateral semicircular canal
3. Superor semicircular canal
4. Posterior semicircular canal
At one end of each of the semicircular canals is a dilatation:
d. Osseous ampule
5. Cochlea
e. Basal turn
f. Central turn
g. Pointed turn
h. Cupola
i. Modiolus
k. Osseous spiral lamina
l. spiral hamulus of the lamina
6. Anterior semicircular dust
7. Posterior semicircular duct
m. Common crus of the anterior and posterior semicircular duct
8. Utricle
9. Saccule
10. Endolymphatic duct
11. Utriculosaccular duct
n. Membranous spiral lamina
o. Vestibular wall of the cochlear duct
p. Scala vestibuli
q. Scala tympani
r. Cochlear duct
12. Stato-acoustic nerve
13. Cochlear part
14. Vestibular part
IV. Dissection
A. Neck
282. Common Carotid
283. External Jugular
284. Thyroid Gland
285. Submandibular Gland
286. Thyroid cartilage
287. Mylohyoid
288. Digastric
289. Internal Jugular
290. Omohyoid
291. Sternohyoid
292. Sternocleidomastoid
293. Sternothyroid
294. Thyrohyoid
295. Hyoid Bone
296. Stylohyoid
297. Scalenus anterior
298. Scalenus medius
299. Scalenus posterior
300. Cricothyroid
B. Larynx
301. Hyoid Bone
302. Epiglottis
303. Piriform Recess
304. Ariepiglottic fold
305. Thyroid Cartilage
306. Vestibule
307. Vestibular Fold
308. Ventricle
309. Vocal Fold
310. Arytenoid Cartilage
311. Cricoid Cartilage
V. Audio-Visual-none