Lab Skull Flashcards by Sophia Dalpiaz-Brown

Q

What is the yellow portion of the model referring to?

A

Axial; skull, auditory ossicles, hyoid bone, vertebral column, & thoracic cage

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Q

What is the green portion of the model referring to?

A

Appendicular; upper limbs, lower limbs, pectoral girdle & pelvic girdle

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Q

What shape is this bone?

A

Long bone; longer than it is wide

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Q

What shape is this bone?

A

Flat bone; relatively thin, flattened shape, usually curved

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Q

What shape is this bone?

A

Short bone; round or nearly cubed-shaped

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Q

What shape is this bone?

A

Irregular bone; shapes that do not readily fit into other categories

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Q

What is this called?

A

Sagittal suture; runs front to back

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Q

What is this called?

A

Lambdoid suture; located posterior

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Q

What is this called?

A

Squamous suture; temple to rear of skull

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Q

What is this called?

A

Coronal suture; along the crown or fore head

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Q

What is this?

A

Frontal bone; forehead

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Q

What are these?

A

Parietal bones; two skull sections on either side of the sagittal suture

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Q

What is this?

A

Occipital bone; skull section at rear skull base

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Q

What are these? (2)

A

Temporal bones; located at the temple of both sides of the skull

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Q

What are these areas?

A

Supraorbital Margin; eyebrow area

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Q

What are these spaces?

A

Supraorbital Foramen (notch); notch in eyebrow socket

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Q

What are these holes?

A

Infraorbital Foramen; holes on either side of the nose inferior to the eye socket

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Q

What is this hole?

A

Foramen magnum; foramen=hole, magnum= big

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Q

What are these areas?

A

Occipital Condyle; two ridges on either side of the magnus foramen

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Q

What are this area?

A

External Occipital Protuberance (crest); small ridge at center of occipital bone

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Q

What are these two areas?

A

Superior Nuchal Line; above and on either side of the external occipital crest

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Q

What are these two areas?

A

Inferior Nuchal Lines; below and to either side of the external occipital crest

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Q

What are these two holes?

A

Hypoglossal Canal; two holes on either side of the foramen magnum

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Q

What is this structure?

A

Zygomatic Process; ridge on temporal bone

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What is this structure?

Mastoid Process; projection bottom edge of temporal bone

What is this structure?

Styloid Process; pointy "stylus-like" projection below ear area of temporal bone

What is this structure?

Mandibular Fossa; small recess on the temporal bone that holds the mandible/ jaw

What is this hole?

External Acoustic Meatus; hole for ear in temporal bone seen from outside

What are these holes?

Internal Acoustic Meatus; hole for the ear in temporal bone seen from inside

What are these holes?

Carotid Canal; openings inside skull for carotid artery

What are these holes?

Jugular Canals; opening for inside the skull for the jugular artery

What is this bone?

Sphenoid bone; butterfly shaped or sphenoid in latin= wedge shaped

What is this structure?

Sella Turcica; Sella=saddle turcica=Turkish

What is this structure?

Hypophyseal Fossa; depression within the Sella Turcica

What is this structure?

Greater wing of the Sphenoid Bone; lower portion of the butterfly shape

What are these holes?

Foramen Lacerum

What are these holes?

Foramen Rotundum; above foramen lacerum

What are these holes?

Foramen Ovale; holes lateral to the foramen lacerum

What are these holes?

Foramen spinosum; lateral and inferior to the foramen lacerum

What is this structure?

Lesser Wing of the Sphenoid bone

What are these holes?

Optic canals (foramen)

What is this structure?

Ethmoid Bone

What are these structures?

Cribriform plates

What is this structure?

Crista Galli; ridge on ethmoidal bone

What is this structure?

Perpendicular plate; visible through nasal cavity as medial ridge

What is this structure?

Superior Nasal Concha; above middle nasal concha

What is this structure?

Middle Nasal Concha; below superior nasal concha

What is this structure?

Orbit, eye socket

What is this opening?

Superior Orbital Fissure; Upper portion of large crack within orbit (eye socket)

What is this opening?

Inferior Orbital Fissure, Lower portion of large crack within orbit (eye socket)

What is this hole?

Optic Canal

What are these bones?

Nasal Bones

What is this bone?

Vomer

What are these bones?

Palatine bones

What are these bones?

Zygomatic bones

What is the area where these bones touch called?

Temporal Process (of the Zygomatic Bone)

What is the area where these bones touch called?

Zygomatic Process (of the Temperal Bone)

What is this area called?

Zygomatic Arch; Zygomatic Process + Temporal Process

What are these bones combined called?

Nasal Septum; Perpendicular plate + Vomer

What is this bone?

Maxillae

What is this area of the bone?

Alveolar Processes (upper)

What is this bone?

Mandibles

What this area of the bone?

Alveolar processes (lower)

What are these holes?

Infraorbital Foramen

What are these bones?

Inferior Nasal Concha

What is this area of the bone?

Body of the Mandible (jaw)

What is this area of the bone?

Ramus of the Mandible

What is this area of the bone?

Angle of the Mandible

What is this area of the bone?

Condylar Process of the mandible

What is this area of the bone?

Coronoid Process of the mandible

What is this hole?

Mental Foramen

What are these holes?

Mandibular Foramen

What is this area?

Frontal Sinuses

What is this area?

Ethmoidal Sinuses

What is this area?

Sphenoidal Sinuses

What is this area?

Maxillary Sinuses