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Lab Activity 8. Axial Skeleton Martini Chapter 7. Portland Community College BI 231. Axial Skeleton. Skull Spine Thoracic Cage Hyoid bone. Cervical Spine. 7 Vertebra C1-C7 Concave Posterior. Thoracic Spine. 12 Vertebra T1-T12 Convex Posterior Attach to the ribs. Lumbar Spine.

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Lab activity 8

Lab Activity 8

Axial Skeleton

Martini Chapter 7

Portland Community College

BI 231


Axial skeleton
Axial Skeleton

  • Skull

  • Spine

  • Thoracic Cage

  • Hyoid bone


Cervical spine
Cervical Spine

  • 7 Vertebra

  • C1-C7

  • Concave Posterior


Thoracic spine
Thoracic Spine

  • 12 Vertebra

  • T1-T12

  • Convex Posterior

  • Attach to the ribs


Lumbar spine
Lumbar Spine

  • 5 Vertebra

  • L1-L5

  • Concave Posterior


Sacral spine
Sacral Spine

  • 5 Fused Vertebra

  • “Sacrum”


Coccyx
Coccyx

  • 4 Fused Vertebra




Annulus fibrosus
Annulus Fibrosus

(Fibrocartilage)



Cervical vertebrae c3 c7
Cervical Vertebrae (C3-C7)

VertebralForamen

BODY


Cervical vertebrae c3 c71
Cervical Vertebrae (C3-C7)

Bifid Spinous Process


Cervical vertebrae c3 c72
Cervical Vertebrae (C3-C7)

Transverse

Processes

Transverse Foramen


Cervical vertebrae c3 c73
Cervical Vertebrae (C3-C7)

Superior Articular Process

Superior Articular Facet



Cervical vertebrae c1 atlas
Cervical Vertebrae C1: Atlas

Superior Articular Facet


Cervical vertebrae c2 axis
Cervical Vertebrae C2: Axis

Odontoid Process (Dens)


Cervical vertebrae c1 c2 joined together
Cervical VertebraeC1 & C2 Joined Together


Thoracic vertebrae
Thoracic Vertebrae

Spinous Process


Thoracic vertebrae1
Thoracic Vertebrae

Costal Facets on the Transverse Process (for rib attachment)



Sacrum
Sacrum

5 Fused Vertebrae


Sacrum1
Sacrum

Sacral Promontory


Sacrum2
Sacrum

Sacral Foramina



Coccyx1
Coccyx

4 Rudimentary Vertebrae


Hyoid bone
Hyoid Bone

Greater Horn

Lesser Horn

BODY


Sternum
Sternum

Manubrium

Sternal Angle

Body

Xiphoid Process








Frontal bone

Supraorbital ridge

Frontal Bone

Frontal Bone

Frontal Bone


Frontal bone1
Frontal Bone

Frontal Sinus


Parietal bone
Parietal Bone

Parietal Bone


Parietal bone1
Parietal Bone

Parietal Bone


Temporal bone
Temporal Bone

Temporal Bone


Temporal bone1
Temporal Bone

Temporal Bone

Temporal Bone


Temporal bone2
Temporal Bone

External Acoustic Meatus

Zygomatic Arch

Mastoid Process

Mandibular fossa

Styloid Process


Temporal bone3
Temporal Bone

Carotid Canal

Jugular Foramen



Occipital bone1
Occipital Bone

Occipital Condyles

Foramen Magnum

External occipital

protuberance


Sphenoid bone
Sphenoid Bone

Lesser Wing

Greater Wing

Pterygoid Process

Lateral Pterygoid Plate

Medial Pterygoid Plate


Sphenoid bone1
Sphenoid Bone

Sphenoidal Sinus

Pterygoid Process


Sphenoid bone2
Sphenoid Bone

Lesser Wing

Greater Wing

Sella Turcica


Sphenoid bone3
SphenoidBone

Hypophyseal Fossa

Dorsum Sella


Ethmoid bone
Ethmoid Bone

Crista Galli

Perpendicular

Plate


Ethmoid bone1
Ethmoid Bone

Middle NasalConchae

Perpendicular Plate


Ethmoid bone2
Ethmoid Bone

Cristae Galli

Cribriform

Plate

Perpendicular Plate


Cranium floor
CraniumFloor

Anterior Cranial Fossa

Middle Cranial Fossa

PosteriorCranial Fossa


Sagittal suture
Sagittal Suture

Occipital

Bone

Between the Right and Left Parietal bones

Parietal

Bone

(Right)

Parietal

Bone

(Left)

Frontal

Bone


Coronal suture
Coronal Suture

Parietal Bone

Frontal

Bone

Between the Parietal bones and the Frontal Bone

Temporal

Bone

Occipital

Bone


Squamous suture
Squamous Suture

Parietal Bone

Frontal

Bone

Between the Parietal bone and the Temporal Bone

Temporal

Bone

Occipital

Bone


Lambdoid suture
Lambdoid Suture

Parietal Bone

Frontal

Bone

Between the Parietal bones and the Occipital Bone

Temporal

Bone

Occipital

Bone


Wormian sutural bones
Wormian (Sutural) Bones

Small islands of bone that fill gaps in sutures.

Present in varying amounts



Fetal skull superior view
Fetal SkullSuperior View



Maxilla
Maxilla

Hard Palate


Mandible
Mandible

Coronoid Process

Mandibular

Condyle

Alveolar Process

Ramus

Angle

Mental Foramen

Body


Mandible1
Mandible

Mandibular

Foramen

Mylohyoid Line



Zygomatic bone
Zygomatic Bone

Temporal Process

Zygomatic Arch



Facial bones1
Facial Bones

Middle NasalConchae (Ethmoid)

Inferior Nasal Conchae

Perpendicular Plate (Ethmoid)

Vomer


Sinuses
Sinuses

Ethmoid Air Cells

Frontal

Sphenoidal

Maxillary


The end
The End

The End