Anatomy I: Lesson 7

Skull Part II - Viscerocranium Objective: Students will examine the visercocranium in order to differentiate between the structures amongst the various species

Entrance Name of Canal Exit

For. Infraorbitale Canalis Infraorbitalis For. Maxillare

For. Lacrimale Canalis Lacrimalis Cavuum Nasi

For. Palatinum Caudale Canalis Palatinus Majus For. Palatinum Majus and Minor

For. Opticum Canalis Opticum Sulcus Chiasmaticus

For. Alare Rostrale Canalis Alare For. Alare Parvum (Eq) &

For. Alare Caudale

For. Retroarticulare Meatus Temporalis Cavuum Cranii

For. Stylomastoideum Canalis Facialis Area n. facialis

For. Magnum Canalis Vertebrale Cavuum Cranii

For. Supraorbitalis Canalis Supraorbitalis Orbit

For. Incisivum Dorsale Canalis Interincisivus For. Incisivum Ventrale

For. Mandibulae Canalis Mandibulae For. Mentale

For. Ethmoidale N/A Lamina Cribrosa

For. Rotundum N/A Sulcus. N. Maxilaris

Fissura Orbitalis N/A Sulcus Opthalmici

For. Sphenopalatinum N/A Cavuum Nasi

II. Viscerocranium meatus nasi dors. lamina cribrosa ( olfactory bulb)

meatus nasi medius sinus paranasales (eq – 1 system)

meatus nasi ventr. pharynx ( larynx trachea)

meatus nasi communis (next to septum nasi)

Orbit fossa sacci lacrimalis (rostr. nasal cavity)

fossa glandulae lacrimalis (“lat.”, but within the orbit)

fossa musculi obliqui ventr. (medioventr.)

fovea trochlearis (mediodors., for m. obliquus dors.) Ca, Sus: ligamentum orbitale

Arcus zygomaticus

Os temporale, proc. zygomaticus

Os zygomaticum, proc. temporale

Os frontale, proc. zygomaticus

Ca, Sus: Lig. orbitale

fossa pterygopalatina

For. maxillare For. infraorbitale

For. sphenopalatinum Cavum nasi

For palatinum caud. For palatinum majus

caud. rostr.

palatum durum (hard palate)

os palatinum, lamina horizontalis maxilla, proc. palatinus os incisivum, proc. palatinus

◦ margo interalveolaris (= diastema)

◦ septa interaleveolaria ◦ septa intraalveolaria (= interradicularia)

rostr.: foramen interincisiva (Ca, Eq) fissura interincisiva (Ru, Sus)

Mandibula

lat.: fossa masseterica, rostr.: for. mentale med.: fossa pterygoidea, caud.: for.

mandibulae facies lingualis / fac. labialis + fac. buccalis interspec. diff.: margo ventr. – shape angulus mandibulae Eq: tuberositas musculi

sternomandibularis Ca: proc. angularis (caudovetr.)