Bones Associated with the Skull

Seven bones are closely associated with the skull but not considered part of it. These are the three auditory ossicles in each middle-ear cavity and the hyoid bone beneath the chin. The auditory ossicles29—named the malleus (hammer), incus (anvil), and stapes (STAY-peez) (stirrup)— are discussed in connection with hearing in chapter 16. The hyoid30 bone is a slender bone between the chin and larynx (fig. 8.16). It is one of the few bones that does not articulate with any other. The hyoid is suspended from the styloid processes of the skull, somewhat like a hammock, by

30hy = the letter U + oid = resembling

Saladin: Anatomy & I 8. The Skeletal System I Text I © The McGraw-Hill

Physiology: The Unity of Companies, 2003 Form and Function, Third Edition

260 Part Two Support and Movement

-Styloid process - Stylohyoid muscle

Hyoid Larynx

-Styloid process - Stylohyoid muscle

Hyoid Larynx

Figure 8.16 The Hyoid Bone.

the small stylohyoid muscles and stylohyoid ligaments. The medial body of the hyoid is flanked on either side by hornlike projections called the greater and lesser cor-nua31 (CORN-you-uh)—singular, cornu (COR-new). The hyoid bone serves for attachment of several muscles that control the mandible, tongue, and larynx. Forensic pathologists look for a fractured hyoid as evidence of strangulation.

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  • ariam
    What are the 7 bones that are closely associated with the skull?
    2 years ago

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