bones-pdf.pdf

The Bones

Short List

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Types of Bones

1) Long bones – bones of the upper and lower arms

and legs as well as the metacarpals and

metatarsals.

2) flat bones – sternum, ribs, scapulae, cranium

3) short bones – carpals and tarsals

4) irregular bones – vertebrae

5) sesamoid bones – patellae

Skeletal Divisions

1) Axial skeleton – skull, sternum, ribs, and vertebrae

(including sacrum)

2) Appendicular skeleton – bones of the pectoral and

pelvic girdles and of the arms, legs, wrists, hands,

ankles, and feet.

Figure 7.3 a

Frontal (coronal) suture

Sphenoid

bone

Parietal bone

Squamosal

(temporal)

suture

Frontal bone

Occipital

(lamdoidal)

suture

Nasal bone

Occipital

bone

Zygomatic

bone

Maxilla

Temporal bone

Mandible

Important: the mastoid process (important site for attachment of

muscles such as the sternocleidomastoid), the external acoustic

meatus (opening into the parts of the ear), the articulation of the

temporal bone and mandible ( the TMJ) , and the zygomatic arch , all

on the temporal bone.

Temporal Bone

External acoustic

meatus

Zygomatic

process (arch)

Mastoid process

Styloid process

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