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25 Cards in this Set

  • Front
  • Back
List the two divisions of the skeletal system.
Axial Skeleton and Appendicular Skeleton
The skeletal division that includes the bones of the head, trunk, skull bones, vertebrae, hyoid, ribs and sternum is the
Axial Skeleton
The skeletal division that includes bones of the appendages and their girdles is the
Appendicular Skeleton
List 3 regions of the skull
Cranial, facial and orbital.
Cranial bones inculde:
Frontal, parietals, occipital, sphenoid, ethmoid, and temporal bones.
Facial bones incude:
Maxillaries, zygomatics, nasals, lacrimals, vomer, palatines, and mandible.
Orbital bones include:
Maxillaries, zygomatics, frontal, sphenoid, ethmoid, lacrimal and the palatines.
Sphenoid Bone articulates with:
The Frontal and Parietal-superiorly,
and anteriorly with the zygomatic.
The anterior projection of the temporal is the
Zygomatic process of the Temporal Bone.
The posterior projection of the zygomatic is the
Temporal Process of the Zygomatic
Zygomatic articulates with:
Posterior-Sphenoid, Superior-Frontal
What are the names and the number of teeth on each side of the jaw?
Beginning at the midline-First 2 are incisors, then 1 canine, 2 premolars, and up to 3 molars.
Ethmoid articulates with
the Frontal superiorly, Maxillary inferiorly, and the sphenoid posteriorly.
Where is the Hyoid bone and what is special about it?
Hyoid bone supports the tongue. It is U-shaped and does not attach to the axial skeleton.
List the parts of the vertebral column and number of vertebrae
5-Fused Sacral
3-5-Fused Coccygeal
Cervical Vertebrae-Atlas
C1-looks like a large ring with small transverse processes, body is absent.Has large superior articulating facets to articulate with the occipital bone.
Cervical Vertebrae-Axis
C2- short, broad spinous process, short transverse process, body has a superior projection that rests inside the vertebral canal of the atlas, this is called the DENS
Other features of Cervical Vertebrae-
Spinous Processes are Bifid. Transverse Processes of all 7 cervical have foramina called the transverse foramen.
Thoracic vertebrae can be distinguished by-
Facets for rib attachment, long spinous processes that point inferiorly, heart shaped body.
Clavicle-S-shaped bone-articulates?
Medial end articulates with the Manubrium and lateral end articulates with the scapula.
Humerus articulates superiorly with
the glenoid cavity of the scapulae
Humerus identification-
Proximal end is rounded and fits into the glenoid cavity, spool shaped feature at the distal end. The Posterior, distal end has a LARGE DEPRESSION.
Medial most bone of the antebrachial area. Has a deep, U-shaped notch anteriorly at the proximal end called the TROCHLEAR NOTCH-articulates with the HUMERUS
lateralmost bone of the arm. Its proximal end is rounded and flat and articulates with the shallow notch at the lateral surface of the ulna and the lateral portion of the spool of the humerus.
Lower leg, large medial bone. Proximal end has two large flat surfaces, which articulate with the femur. Distal end has a medial projection that can be used to identify the medial and lateral surfaces of the bone.