Lab 2: Axial Skeleton

Process

A natural outgrowth, projection or appendage

Condyle

smooth, rounded articular process

Facet

small, flat articular surface

Fossa

shallow depression

Sulcus

narrow groove

Foramen

round passageway

Canal/meatus

passageway through a bone

Fissure

elongated cleft

Sinus

chamber within bone

Lambdoid suture

connects occipital and parietal

Coronal suture

Connects frontal and parietal

Sagittal suture

connects parietal bones

Squamous suture

Connects the temporal bone and parietal bone.

Frontal bone

Frontal sinus

Lacrimal fossa

Name this DEPRESSION

superior and lateral in the orbital socket

Supra-orbital margin

Supra-orbital notch

Parietal bones

Occipital bone

External occipital protuberance

External occipital crest

Internal occipital protuberance

Name this structure

Internal occipital crest

Name this ridge

Occipital condyles

Foramen magnum

Jugular foramen

Hypoglossal canal

Goes through the occipital condyles

Temporal bones

Zygomatic process of the temporal bone

Very back part of the arch only

Zygomatic arch

Entire thing

- Name this structure

Mandibular fossa

"gummy hole" where jaw connects on models

Mastoid process

Styloid process of the temporal bone

Styloid = stiletto (very pointy)

Squamous part of the temporal bone

The smooth part of the temporal bone through the inside

Petrous part of the temporal bone

Pointy (mountain) part of temporal bone

Temporal fossa

Indent on the temporal bone from the outside

Name this depression

External acoustic meatus

Internal acoustic meatus

Inside the petrous part

Carotid canal

Foramen lacerum

Stylomastoid foramen

Hole under the styloid process

Sphenoid bone

Body of sphenoid

Center of the sphenoid only

Sella turcica

"the saddle"

Name this structure

Lesser wings of sphenoid bone

Greater wings of sphenoid

Pterygoid process

Optical canal

Superior orbital fissure

Foramen rotundum

Foramen ovale

Foramen spinosum

Hypophyseal fossa

Smooth "seat" inside sella turcica

Name this depression

Ethmoid bone

Cribiform plate

Crista galli

Ridge on the cribiform plate

Middle nasal conchae

Perpendicular plate

Olfactory foramina

holes in cribriform plate

Maxilla

Orbital rim

Anterior nasal spine

Tiny point in front of the nose on the bottom

Alveolar process

ridges of the teeth

palatine processes

Roof of the mouth

Maxillary sinuses

Sinus on top of the teeth

Nasolacrimal canal

where the tearduct is

Name this passageway

Infra-orbital foramina

Little holes under the eyes on the cheeks

Inferior orbital fissure

Mandible

Jaw bone

Body of mandible

Curved part where the teeth are

Mental protuberance

Bump in the middle of the chin

Ramus of mandible

Smooth, flat, back part of the mandible

Condylar process

Very back hump on the mandible where it connects to skull

Coronoid process

Next hum closer to the chin

Mental foramina

Holes on the chin

Mandibular notch

the swoop between the processes of the mandible

Mandibular foramina

Small holes on the inside of the mandible

Temporal process of the zygomatic bone

The front part of the zygomatic arch

Palatine bones

small bones on the back of the roof of the mouth

Nasal bones

Vomer

Ridge at the bottom of the nose

Inferior nasal conchae

Lacrimal bones

"squarish" bone where the nasolacrimal canal sits

lacrimal sulcus

Name this GROOVE

Hyoid bone

Floating bone in the neck

Body of hyoid

Lesser horns of the hyoid

Greater horns of hyoid

Anterior fontanelle

Occipital fontanelle

Sphenoidal fontanelle

Mastoid fontanelle

Vertebral body

Solid circle at the bottom of the vertebrae

Name this region

Vertebral foramen

Hole through which spinal cord passes

Vertebral canal

The canal where the spinal cord passes through when there is more than one vertebrae stacked on top of each other

Vertebral arch

Entire top part of the vertebra until the vertebral body

Name this region

Pedicle of vertebra

walls of a house

Lamina of vertebra

left or right dorsal half of the arch

Spinous process of vertebra

The point that sticks out of the vertebra