Anatomy Lab Part 2

Calvarium

Calvarium

Comprised of the frontal, occipital, and 2 parietal bones

Cranial Base is comprised of what bones?

Frontal, sphenoid, ethmoid, occipital, parietal and temporal

Facial cranium is formed by what bones?

Zygomatic (2), lacrimal (2), nasal (2), inferior nasal conchae (2), palatine (2), maxilla (2), vomer, mandible

Frontal fontanelle

Junction of coronal and saggital sutures

Occipital fontanelle

Junction of Sagittal and lambdoid sutures

Coronal suture

Junction between the frontal and parietal bones

Identify these sutures

Sagittal (vertical) Lambdoid (horizontal)

Identify these sutures

Top coronal suture Squamous suture

Identify these spaces

Top to bottom: Anterior cranial fossa Middle cranial fossa Posterior cranial fossa

Identify these sinuses

Answers

Identify bones

1- frontal 2-parietal 3-lacrimal 4-zygomatic 5-mandible 6-maxilla 7-palatine 8-nasal 9-ethmoid 10-temporal 11-sphenoid

Identify

1- frontal sinus 2- ethmoid sinus 3-maxillary sinus 4-sphenoid sinus

Identify

Foremen spinosum

Identify

Foremen magnum

Identify

Foremen Ovale

Identify

Jugular foramen

Identify

Foramen lacerum

Identify

Foramen rotundum

Identify

Optic canal CN II

Identify

Cribriform plate CN I

Identify

1-cribriform plate 2-optic canal 3- superior orbital fissure 4- foramen rotundum 5-foramen ovale 6-Internal acoustic meats 7-Jugular foramen 8- hypoglossal canal 9-foramen magnum

Identify

Internal acoustic meatus

Identify

Superior orbital fissure

Identify

Hypoglossal canal

What is circled in blue?

Entrance to pterygopalatine fossa

What is pictured in green?

Pterygopalatine fossa

Identify

Infratemporal fossa

Identify

1- V1 Ophthalmic 2- V2 maxillary 3- V3 mandiblular

Identify

Blue- greater palatine foramen Red- lesser palatine foramen (Where each of the nerves surfaces and serves the palate)

Identify

Internal carotid arteries

Identify this artery

Middle meningeal artery

Facial nerve

CN VII, goes through internal auditory meatus

Identify

1-mueller’s muscle 2- tarsal plate 3- meibomian glands 4- muscle of Riolan 5-orbicularis oculi 6-aponeurosis or levator muscle 7- gland of moll 8- Zeis gland

Identify layers of cornea

1-Epithelium 2-Bowman’s layer 3- stroma 4-Descemet’s membrane 5- endothelium

Identify

1-inner nuclear layer 2-outer plexiform layer 3-outer nuclear layer 4- pigmented epithelium 5-choroid 6-sclera 7-lamina vitrea

Identify

1-inner limiting membrane 2-nerve fiber layer 3- ganglion cell layer 4-inner plexiform layer 5- external limiting membrane

Identify

Laminate fusca

Identify

1- Settler’s layer 2- Halley’s layer 3- choriocapillaries

Identify

1-sclera 2- lamina fusca 3- Baller’s layer 4- settler’s layer 5- choriocapillaries 6- brunch’s membrane 7- RPE

Identify

1- cornea 2- canal of schlemm 3- trabecular meshwork 4- iris 5- scleral spur 6- major circle of the iris 7- ciliary process 8- limbus 9- sclera 10- epichoroidal stars

Identify

1- schlemm’s canal 2- anterior chamber 3- posterior chamber *- supraciliary space —> lumen of major circle of the iris

Identify

1- cornea 2- trabecular meshwork 3- sclera 4- ciliary muscle 5- ciliary body stroma

Identify

Iris

Identify

LL- lacrimal lake ILP- inferior lacrimal punctum

Identify

P- pelican semilunaris C- caruncle —> puncta

Identify

1- grey line 2- Meibomian gland orifices 3- lash line

Identify green, purple, and yellow areas

Green- pupillary ruff Purple- collarette Yellow- crypts of fuchs

Identify

1-Ora seratta 2- pars plans 3- pars plicata

Identify the asterisk area

Pars plana

Identify

1- LPCA 2- Inferior Oblique

Identify

1-vortex veins 2- SPCA 3- LPCA

Identify

SC- schlemm’s canal SS- scleral spur SL- schwalbe’s line (edge of descemet’s membrane)

What runs through the foramen rotundum?

CN V2

What runs through foramen ovale?

CN V3

What runs through foramen spinosum?

middle meningeal artery, nerves

What runs through foramen lacerum?

deep petrosal nerve, internal carotid artery

What runs through optic canal?

CN 2

What runs through jugular foramen?

CN 9, 10, and 11

What runs through internal acoustic meatus?

CN 7 and 8

What runs through hypoglossal canal?

CN 12

What runs through foramen magnum?

spinal cord, medulla, CN11, spinal artery and vein

What runs through cribriform plate?

CN1

The maxillary nerve runs through what hole?

foramen rotundum

Identify

Brunch’s membrane

Identify

See picture

Identify

Mullers muscle

Identify

Glands of Moll

Identify

Goblet cells in fornix

Identify

RPE

Identify

Left- lens capsule Right- zonular fibers