Axial Skeleton (Lab) Flashcards
Covers the axial skeleton in preparation for the lab portion of anatomy.
What is your forehead bone called?
Frontal Bone
What is the lower arc of your eyebrow called?
Superorbital Arch
What is the upper arch of your eyebrow called?
Supercillary Arch
Where are the Parietal Bones
Left & Right sides of the Back Cranium/ On top of Head
Where is parallel to eyebrows and part of your frontal sinuses?
Nasal crease
What two arched and curved lines cross the middle of the Parietal Bone?
Temporal Lines
What “stitches” separate the frontal and parietal bones?
Coronal Suture
What “stiches” borders the Occipital and both Parietal Bones?
Lamboid Suture
What “stiches” separate the Parietal Bones?
Saggital Suture
What “stiches” border the Temporal Bone, Parietal, and Occipital Bone?
Squamous Suture
What skull bone is in the back lower part of the cranium?
Occipital Bone
What two rounded knobs on the occipital bone that form a joint with the first cervical vertebra?
Occipital Condyles
What “hole” does the spine enter the skull through?
What Bone is it a part of?
Foramen Magnum
Occipital Bone
What lines lie on the occipital bone and on the lateral sides of the External Occipital Proteuberance?
Nuchal Lines
Where do the muscles attach to form the head?
External Occipital Protuberance
What forms part of the anterior cranial fossa; part of the nasal septum; roof & lateral walls of nasal Cavity; part of medial wall of eye orbit?
Ethmoid Bone
What is directly lateral to the Crista Galli of the Ethmoid Bone?
Cribriform Plate
What is the attachment site for cranial dural septa to help stabilize brain within skull?
Crista Galli
What is on the Inner lateral Wall of Ethmoid Bone
Anterior View
Superior & Middle Nasal Conchae
What forms the superior part of the nasal septum?
Perpendicular Plate
*Rhino Tusk
What is directly lateral to the Crista Galli of the Ethmoid Bone and lies in the Cribriform plate?
Cribriform (Olfactory) Foramen
What forms a zygomatic arch with the zygomatic process of the temporal bone?
Temporal Process
What bone forms the cheek & lateral part of the orbit?
Zygomatic Bone
Which part of the Zygomatic bone articulates with the Frontal Bone?
Frontal Process
What bone unites cranial & facial muscles?
wings
Sphenoid Bone
What are the “Bigger wings” on the Sphenoid Bone?
Greater wings
What are the “Smaller wings” on the Sphenoid Bone?
Lesser Wings
What is the vertical boundary of the Greater & Lesser Wings?
Pterygoid Process
*pterygoid canal: transmits nerves
What holds the pituitary gland and is part of the Sphenoid Bone?
Sella Turica
What shallow, transverse depression is anterior to the sella turica and crosses the superior surface of the Sphenoid Bone?
Optic Groove
What are the smallest bones in the body?
Name all 3.
Ear ossicles
Malleus: “hammer”
Incus: “anvil”
Stapes: “stirrup”
What resembles a spiral shell?
Conchae
What is located in the inferolateral (below & to one side) wall of the nasal cavity and is a seperate bone nasal conchae of the ethmoid bone?
Inferior Nasal Conchae
What bone is bordered by the squamous suture, lies posterior to Zygomatic Bone, and inferior to Parietal Bones?
Temporal Bones
What lateral flat surface is directly inferior to squamous suture?
Squamous Part
What thick part of the temporal bone houses sensory structures of the inner ear that provide info about hearing and balance?
Petrous part
What is the prominent bulge on the inferior surface of the temporal bone and an anchoring site for muscles that move the neck?
Mastoid Process (Masto=breast)
What entrance is surrounded by the tympanic part on the Temporal Bone.
External Acoustic Meatus
External Auditory Canals
What provides a passageway for nerves and BV of the internal ear?
Part of the internal Temporal Bone
Acoustic Canal
Internal Acoustic Meatus
What long and sharp point lies inferior to the squamous part of the Temporal Bone?
(Points to Zygomatic Bone)
Zygomatic Process
Each temporal bone articulates with the mandible inferior to the base of both zygomatic processes in what depression?
Mandibuller Fossa
What thin, pointed, projecting bone serves as an attachment for several hyoid and tongue muscles
Styloid Process
What paired bone hold the upper teeth/jaw?
Maxillary (maxilla) Bones
What hard plate is formed anteriorly by horizontal medial extensions of both maxillae?
Palatine Process
What part of the maxilla bone pointing towards the Frontal Bone?
Frontal Process
What provides passageway for BV & nerves on the Maxillary Bone.
Infraorbital Foramen
Where are the holes for the teeth?
Alveoli of the maxilla bone
What holds the teeth in the Maxillary Bone?
Alveolar Process
What is the bone of the lower jaw called?
Mandible