Bone Anatomy Flashcards
Bone Anatomy
What is Wolff’s Law?
Bone structure reflects its function.
What is the bone labeled A?
Frontal Bone
What is the boney landmark labeled B?
Frontal Squama
What is the bone labeled C?
Parietal Bone
What is the boney landmark labeled D?
Supraorbital notch
What is the suture labeled E?
Squamous Suture
What is the bone labeled F?
Sphenoid bone
What is the skull structure labeled G?
The orbit
What is the (orange) bone labeled H?
Ethmoid bone
What is the (blue) bone labeled I?
Palatine bone
What is the (purple) bone labeled J?
Lacrimal bone
What is the boney landmark labeled K?
Zygomaticofacial foramen
What is the bone labeled L?
Zygomatic bone (cheekbone)
What is the boney landmark labeled M?
Perpendicular plate of ethmoid bone
What is the bone labeled N?
Inferior nasal concha
What is the bone labeled O?
Vomer
What is the boney landmark labeled P?
Mental foramen
What is the suture labeled Q?
Coronal Suture
What is the boney landmark labeled R?
Supraorbital foramen
What is the boney structure labeled S?
Supraorbital Margin
What is the boney structure labeled T?
Optic foramen (or optic canal)
What is the boney structure labeled U?
Superior orbital fissure
What is the bone labeled V?
Temporal bone
What is the bone labeled W?
Nasal bone
What is the boney landmark labeled X?
Inferior orbital fissure
What is the bone labeled Y?
Middle nasal concha
What is the boney landmark labeled Z?
Infraorbital foramen
What is the bone labeled 1?
Maxilla
What is the boney landmark labeled 2?
Alveolar process of the maxilla
What is the boney process labeled 3?
Alveolar process of the mandible
What is the bone labeled 4?
Mandible
What is the bone labeled A?
Frontal bone
What is the Suture labeled B?
Coronal Suture
What is the suture labeled C?
Sagittal Suture
What are the bones labeled D?
Parietal Bones
What are the boney landmarks labeled E?
Parietal Foramina
What is the suture labeled F?
Lambdoid Suture
What is the (small) bone labeled G?
Sutral bone
What is the bone labeled H?
Occipital bone
What is the suture labeled A?
Coronal Suture
What is the bone labeled B?
Parietal Bone
What is the boney landmark labeled C?
Temporal squama
What is the suture labeled D?
Squamous Suture
What is the bone labeled E?
Temporal Bone
What is the boney landmark labeled F?
Zygomatic Process
What is the suture labeled G?
Lambdoid suture
What is the boney landmark labeled H?
Mastoid portion
What bone is labeled I?
Occipital bone
What boney landmark is labeled J?
External occipital protuberance
What is the boney landmark labeled K?
External Auditory Meatus
What is the boney landmark labeled L?
Mastoid process
What boney landmark is labeled M?
Styloid process
What boney landmark is labeled N?
Occipital chondyle
What boney structure is labeled O?
Zygomatic arch (only in articulated skulls)
What bone is labeled P?
Frontal bone
What bone is labeled Q?
Sphenoid bone
What bone is labeled R?
Zygomatic bone
What bone is labeled S?
Ethmoid bone
What bone is labeled T?
Lacrimal bone
What boney structure is labeled U?
Lacrimal Fossa
What bone is labeled V?
Nasal bone
What boney landmark is labeled W?
Temporal process
What boney landmark is labeled X?
Mandibular fossa
What bone is labeled Y?
Maxilla
What boney landmark is labeled Z?
Articular tubercle
What bone is labeled 1?
Mandible
What is the boney landmark labeled A?
Greater Wing
What is the boney landmark labeled B, and what are the other two holes next to it, in order from largest to smallest?
Foramen Rotundum, Foramen Ovallae, Foramen Spinosum
What is the boney landmark labeled C?
Lateral Pteragoid Plate
What is the boney landmark labeled D?
Medial Pteragoid Plate
What is the boney landmark labeled E?
Pteragoid Process
What is the boney landmark labeled F?
Pteragoid canal
What is the boney landmark labeled G?
Superior orbital fissure
What is the boney landmark labeled H?
Sphenoidal sinus
What boney landmark is labeled I?
Lesser wing
What boney landmark is labeled J?
Orbital surface of greater wing
What boney landmark is labeled A?
Optic Canal
What boney landmark is labeled B?
Optic Groove
What boney landmark is labeled C?
Anterior Clinoid Process
What boney landmark is labeled D?
Foramen Rotundum
What boney landmark is labeled E?
Foramen Spinosum
What boney landmark is labeled F?
Foramen Ovalle
What boney landmark is labeled G?
Dorsum sellae
What boney landmark is labeled H?
Sella Tursica
What boney landmark is labeled I?
Posterior clinoid process
What boney landmark is labeled J?
Tubercullum Sellae
What boney landmark is labeled K?
Sphenoidal Spine
What boney landmark is labeled A?
Perpendicular Plate
What boney landmark is labeled B?
Olefactory Foramina on the Cribiform Plate
What boney landmark is labeled C?
Middle nasal Concha
What is the boney landmark labeled D?
Cribriform Plate
What is the boney landmark labeled E?
Orbital Plate
What boney landmark is labeled F?
Lateral mass
What boney landmark is labeled G?
Superior nasal concha
What boney landmark is labeled H?
Crista Galli
How many vertebrae are in each section?
7 cervical
12 Thoracic
5 Lumbar
9 Sacral and coxxyx
What two spinal sections are primary curvature?
Thoracic and Sacral
What two spinal sections are secondary curvature?
Cervical and Lumbar
What is Kyphosis?
Exaggerated thoracic curvature (hunchback)
What is Lordosis?
Exaggerated Lumbar curvature (pregnancy)
What is scoliosis?
Lateral curvature of the spine
Which ribs only articulate with one vertebra?
1, 9-12
What boney landmark is labeled A?
Lamina
What boney landmark is labeled B?
Superior articular facet
What boney landmark is labeled C?
Posterior Tubercle
What boney landmark is labeled D?
Anterior Tubercle
What boney landmark is labeled E?
Body
What boney landmark is labeled F?
Transverse Process
What boney landmark is labeled G?
Transverse Foramen
What boney landmark is labeled H?
Vertebral Foramen
What boney landmark is labeled I?
Spinous Process
What ligament is labeled A?
Anterior Longitudinal Ligament
What ligament is labeled B?
Posterior Longitudinal Ligament
What ligament is labeled C?
Supraspinous ligament
What ligament is labeled D?
Interspinous ligament
What ligament is labeled E?
Ligamentum Luche
What ligament is labeled F?
Ligamentum Flavum
What ligament is labeled G?
Intertransverse Ligament
What bones make up the orbit?
Maxillary
Frontal
Zygomatic
Ethmoid
Lacrimal
Sphenoid
Palatine
What kind of occification occurs in long bones?
Endochondral occification
What type of occification occurs in flat bones?
Intramembranous occification
What part of the longbone is labeled A?
Proximal Epiphysis
What part of the longbone is labeled B?
Metaphysis
What part of the longbone is labeled C?
Diaphysis
What part of the longbone is labeled D?
Metaphysis
What part of the longbone is labeled E?
Distal Epiphysis
What are the circular structures of compact bone?
Osteon
What are the branch-like forms in spongy bone?
Trabeculae
What are the two types of blood canals in compact bone?
Central and perforating
What is the name of a bone cell?
Osteocyte
What is the name of the outermost bone membrane?
Periostium
What is the lineage of bone cells?
Osteoprogenetor, Osteoblast, Osteocyte
What are the pits that bone cells sit in?
Lacunae
Two circles in an osteon have…
Concentric Lamellae
The branch-like structures between osteocytes are called…
Canaliculi
Patterns outside of osteons are called…
Interstitial Lamellae
The occification zone labeled A is…
Zone one: Resting cartilage
The occification zone labeled B is…
Zone Two: Proliferating Cartilage
The occification zone labeled C is…
Zone Three: Hypertrophic Cartilage
The occification zone labeled D is…
Zone Four: Calcified Cartilage
The occification zone labeled E is…
Zone 5: Occification
What are the four main fontanelles in a fetal skull?
Posterior, Posterolateral, Anterior, Anterolateral
What material makes up fontanelles in the fetal skull?
Mesenchyme
