Special organs of the head

Question 1

ID entire structure

Answer 1

Corpus ciliare (ciliary body) - Thickened area situated between the ora serrata and root of the iris that contains the ciliary muscle and ciliary processes.

Question 2

Answer 2

Tunica Vasculosa Bulbi (vascular coat of eyeball)

Question 3

ID highlight

Answer 3

Corona ciliares (corona ciliaris) - Circular zone formed by the ciliary processes.

Question 4

ID 15

Answer 4

Corona ciliares (corona ciliaris) - Circular zone formed by the ciliary processes.

Question 5

ID process

Answer 5

Processus ciliaris (Ciliary processes) - Between 70 and 80 radiating folds containing numerous capillaries measuring 0.1–0.2 mm wide, 1 mm high, and 2–3 mm long. Their epithelium produces aqueous humor.

Question 6

ID folds

Answer 6

Plicae ciliares (Ciliary plicae/ ciliary folds) - Low folds in the corona ciliaris, some of which are also situated between the ciliary processes.

Question 7

ID 19

Answer 7

Retinae (retina)

Question 8

ID 21

Answer 8

Pars ciliaris retinae (ciliary part of retina) - Part situated on the posterior surface ciliary body. It is composed of simple, cuboidal, pigmented epithelium.

Question 9

ID 22

Answer 9

Pars iridica retinae (iridial part of retina) - Part situated on the posterior surface of the iris. It is composed of a double layer of pigmented, cuboidal epithelium.

Question 10

ID combination of 21 and 22

Answer 10

Pars caeca retinae (non visual part of retina)

Question 11

ID 21

Answer 11

Angulus iridocornealis (Iridocorneal angle) - Angle between the iris and cornea. It contains the trabecular tissue, which allows drainage of aqueous humor through its interstices into the scleral venous sinus.

Question 12

ID 17

Answer 12

Anulus tendineus communis (common tendinous ring / common anular tendon) - Tendinous ring giving origin to the rectus muscles. It surrounds the optic canal and medial part of the superior orbital fissure.

Question 13

ID

Answer 13

Anulus tendineus communis (common tendinous ring / common anular tendon) - Tendinous ring giving origin to the rectus muscles. It surrounds the optic canal and medial part of the superior orbital fissure.

Question 14

ID yellow highlight

Answer 14

Anulus tendineus communis (common tendinous ring / common anular tendon) - Tendinous ring giving origin to the rectus muscles. It surrounds the optic canal and medial part of the superior orbital fissure.

Question 15

ID combination of 9 and 10

Answer 15

Glandula Lacrimalis (lacrimal gland)

Question 16

ID green

Answer 16

Glandula Lacrimalis (lacrimal gland)

Question 17

ID 9

Answer 17

Pars orbitalis (orbital part of lacrimal gland) - Larger portion of the lacrimal gland situated above the tendon of the levator palpebrae.

Question 18

ID 10

Answer 18

Pars palpebralis (palpebral part of lacrimal gland) - Smaller portion of the lacrimal gland situated below the tendon of the levator palpebrae.

Question 19

ID entire structure

Answer 19

Labyrinthus osseus (bony labyrinth) - Bony capsule containing the membranous labyrinth.

Question 20

ID 462.33

Answer 20

Aqueductus cochleae (cochlear aqueduct) - Passageway connecting the perilymphatic space with the subarachnoid space.

Question 21

ID 462.33

Answer 21

Aqueductus cochleae (cochlear aqueduct) - Passageway connecting the perilymphatic space with the subarachnoid space.

Question 22

ID

Answer 22

Labyrinthus vestibularis (vestibular labyrinth) - Contents of the labyrinth including the semicircular canals, but excluding the cochlea.

Question 23

ID 18

Answer 23

Ductus utriculosaccularis (Utriculosaccular duct) - Y-shaped connection joining the endolymphatic duct with the utricle and saccule.

Question 24

ID

Answer 24

Ductus utriculosaccularis (Utriculosaccular duct) - Y-shaped connection joining the endolymphatic duct with the utricle and saccule.

Question 25

ID 19

Answer 25

Ductus utricularis (Utricular duct) - Connection between the utricle and utriculosaccular duct.

Question 26

ID 20

Answer 26

Ductus saccularis (Saccular duct) - Connection between the saccule and utriculosaccular duct.

Question 27

ID 23

Answer 27

Ductus reuniens - Thin tube connecting the saccule and cochlear duct.

Question 28

ID 23

Answer 28

Ductus reuniens - Thin tube connecting the saccule and cochlear duct.

Question 29

ID

Answer 29

Ductus reuniens - Thin tube connecting the saccule and cochlear duct.

Question 30

Define: cochlear labyrinth

Answer 30

Contents of the bony labyrinth.

Question 31

ID 6

Answer 31

Stria vascularis - Broad, highly vascularized strip with specially structured epithelial cells overlying the spiral prominence. It presumably secretes endolymph.

Question 32

ID structure outlined in green

Answer 32

Stria vascularis - Broad, highly vascularized strip with specially structured epithelial cells overlying the spiral prominence. It presumably secretes endolymph.

Question 33

ID

Answer 33

Cavitas tympanica (tympanic cavity) - Oblique crevice situated medial to the tympanic membrane. It contains the auditory ossicles and communicates posterosuperiorly with the pneumatized mastoid cells and anterosuperiorly with the nasopharynx via the auditory tube.

Question 34

Remember this

Question 35

ID 11

Answer 35

Promontorium (Promontory of the labyrinthine wall) - Elevation produced by the basal turn of the cochlea.

Question 36

ID membrane that covers this opening

Answer 36

Membrana tympani secundaria (Secondary tympanic membrane of the labyrinthine wall of the tympanic cavity) - Membranous septum stretched in the round window between the scala tympani and tympanic cavity.

Question 37

ID 24

Answer 37

Eminentia pyramides (Pyramidal eminence of the mastoid wall of the tympanic cavity) - Conical, bony prominence at the level of the oval window with a perforated summit. It contains the stapedius and gives its tendon exit through the opening at its tip.

Question 38

ID 22

Answer 38

Pars flaccida (Pars flaccida (Shrapnell’s membrane) of the tympanic membrane) - Smaller, flaccid part of the tympanic membrane above the anterior and posterior malleolar folds.

Question 39

ID 22

Answer 39

Pars flaccida (Pars flaccida (Shrapnell’s membrane) of the tympanic membrane) - Smaller, flaccid part of the tympanic membrane above the anterior and posterior malleolar folds.

Question 40

ID 23

Answer 40

Pars tensa (Pars tensa of the tympanic membrane) - Much larger portion of the tympanic membrane that is stretched within the tympanic ring.

Question 41

ID 23

Answer 41

Pars tensa (Pars tensa of the tympanic membrane) - Much larger portion of the tympanic membrane that is stretched within the tympanic ring.

Question 42

ID 28

Answer 42

Umbo membrane tympanicae (Umbo of tympanic membrane) - Portion of the membrane lying at the tip of the handle of malleus that draws the tympanic membrane inward.

Question 43

ID

Answer 43

Pars flaccida (Pars flaccida (Shrapnell’s membrane) of the tympanic membrane) - Smaller, flaccid part of the tympanic membrane above the anterior and posterior malleolar folds.

Question 44

ID

Answer 44

Pars tensa (Pars tensa of the tympanic membrane) - Much larger portion of the tympanic membrane that is stretched within the tympanic ring.

Question 45

ID

Answer 45

Umbo membrane tympanicae (Umbo of tympanic membrane) - Portion of the membrane lying at the tip of the handle of malleus that draws the tympanic membrane inward.