MT 2 Yokochi Images Head/Neck 2 (Dustin)

Question 1

17, 20, 24, 25

(25 points to two things)

Answer 1

17 Superior sagittal sinus

20 Frontal sinus

24 Superior nasal concha

25 Middle nasal concha and sphenoid
sinus

Question 2

26, 27, 30

Answer 2

26 Inferior nasal concha

27 Pharyngeal opening of auditory tube

30 Uvula (of soft palate)

Question 3

28, 29, 31

Answer 3

28 Superior longitudinal muscle of tongue

29 Vertical muscle of the tongue (apparently you can tell the difference of these intrinsic tongue muscles..)

31 Genioglossus muscle

Question 4

33, 34, 35, 36

Answer 4

33 Epiglottis

34 Geniohyoid muscle

35 Mylohyoid muscle

36 Hyoid bone (this would be easier in a cadaver to feel where the bone is than it is to see)

Question 5

1, 14, 15

Answer 5

1 Falx cerebri

14 Cerebellomedullary cistern

15 Dens of the axis (C2, odontoid process)

Question 6

1, 2, 3, 4

Answer 6

1 Frontal bone
2 Nasal bone
3 Lacrimal bone
4 Maxilla (frontal process)

(note: skull shouldn’t be on this midterm, but a drawing and general knowledge of the orbit might be important)

Question 7

5, 6, 7, 8

Answer 7

5 Ethmoidal foramina

6 Lesser wing of sphenoid bone and optic canal

7 Superior orbital fissure

8 Greater wing of sphenoid bone

Question 8

9, 10, 11

Answer 8

9 Orbital process of palatine bone

10 Orbital plate of ethmoid bone

11 Inferior orbital fissure

Question 9

12, 13, 14

Answer 9

12 Infra-orbital sulcus

13 Nasolacrimal canal

14 Zygomatic bone

Question 10

2, 5, 6, 7

Answer 10

2 Superior meatus

5 Pharyngeal tonsil

6 Pharyngeal orifice of auditory tube

7 Salpingopharyngeal fold

Question 11

11, 12, 13

Answer 11

11 Frontal sinus

12 Spheno-ethmoidal recess

13 Superior nasal concha

Question 12

14, 15, 16, 17

Answer 12

14 Middle nasal concha

15 Inferior nasal concha

16 Vestibule of nose

17 Inferior meatus

Question 13

15, 16, 17

Answer 13

15 Superior nasal concha and ethmoidal bulla

16 Semilunar hiatus

17 Accessory openings to maxillary sinus
and cut edge of middle nasal concha

Question 14

19, 20, 21

Answer 14

19 Opening of nasolacrimal duct

20 Inferior nasal concha (cut)

21 Opening of auditory tube

Question 15

22, 23, 24

Answer 15

22 Incisive canal

23 Levator veli palatini muscle

24 Salpingopharyngeal fold

Question 16

45, 52, 53, 54

(all are types of papillae, should know where they generally are)

Answer 16

45 Filiform papillae

52 Fungiform papillae

53 Foliate papillae

54 Circumvallate papilla

Question 17

46, 47, 48, 51

Answer 17

46 Foramen cecum

47 Root of tongue with Lingual Tonsil

48 Palatine tonsil

51 Median sulcus of tongue

Question 18

49, 50, 56, 57

Answer 18

49 Vallecula of epiglottis

50 Vestibule of larynx

56 Epiglottis

57 Greater cornu of hyoid bone

Question 19

4, 5, 12

Answer 19

4 Vestibule of oral cavity

5 First incisor

12 Hyoid bone

Question 20

8, 9, 10, 11

Answer 20

8 Genioglossus muscle

9 Geniohyoid muscle

10 Anterior belly of diagastric muscle

11 Mylohyoid muscle

Question 21

(picture shows below mandible)

6, 7, 8, 9

Answer 21

6 Stylohyoid muscle (divided)

7 Mylohyoid muscle

8 Anterior belly of digastric muscle

9 Hyoid bone

(11 shows the intermediate tendon of digastric, but it’s very hard to see)

Question 22

2, 3, 4

Answer 22

2 Supra-orbital nerve
3 Lacrimal gland
4 Lacrimal nerve

Question 23

5, 6, 7

(6 is pointing to 2 things, but only 1 of them is really important to see)

Answer 23

5 Lateral rectus muscle (divided)

6 Optic nerve and short ciliary nerves
7 Inferior oblique muscle

Question 24

1, 2, 3

(hint: 1 is unusally large)

Answer 24

1 Frontal sinus (enlarged)
2 Frontal nerve (divided and reflected)
3 Superior rectus muscle (divided) and eyeball

Question 25

8, 9, 10 | (9 is pointing to 2 things)

Answer 25

8 Zygomatic nerve 9 Inferior branch of oculomotor nerve and inferior rectus muscle 10 Infra-orbital nerve

Question 26

4, 5, 6 (5 is pointing to 2 things, but only one of them is large enough to really tell what it is)

Answer 26

4 Superior oblique muscle 5 Short ciliary nerves and optic nerve (n. II) 6 Nasociliary nerve

Question 27

7 (which nerve and muscle?) 8: what muscle is divided/reflected here?

Answer 27

7 Abducent nerve (n. VI) and lateral rectus muscle 8 superior rectus muscle (reflected)

Question 28

9, 10

Answer 28

9 Oculomotor nerve (n. III) 10 Trochlear nerve (n. IV) (notice the paths and which side of the eye they go to)

Question 29

13, 14, 15

Answer 29

13 Lateral and medial branches of **supra-orbital nerve** 14 Supratrochlear nerve (of the Frontal N.) 15 Superior levator palpebrae muscle

Question 30

16, 17, 10

Answer 30

16 Lacrimal nerve 17 Frontal nerve 10 Trochlear nerve (n. IV) (again watch the direction they go)

Question 31

18, 19 (19 points to 2 things obvious structures)

Answer 31

18 Ophthalmic nerve (n. V 1 ) 19 Optic chiasma and internal carotid artery

Question 32

1, 2, 3

Answer 32

1 Superior sagittal sinus with falx cerebri 2 Olfactory bulb 3 Olfactory tract

Question 33

4, 5, 6

Answer 33

4 Optic nerve and internal carotid artery 5 Anterior clinoid process and anterior attachment of tentorium cerebelli 6 Oculomotor nerve (n. III)

Question 34

7, 8 (8 describes the large opening in the dura here)

Answer 34

7 Abducent nerve (n. VI) 8 Tentorial notch (incisura tentorii)

Question 35

10, 11, a (drawn in red)

Answer 35

10 Tentorium cerebelli 11 Falx cerebri and confluence of sinuses a) Straight sinus (drains the inferior sagittal sinus)