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Chapter 6 Flash Cards
BIO168SHY1 Kevin McMullen
15
Anatomy
Undergraduate 1
06/01/2013

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Term
Flat Bones
Definition
Thin, roughly parallel surfaces. Form the roof of the skull, the sternum, the ribs, and the scapulae. Provide protection for underlying soft tissues and off an extensive surface area for the attachment of skeletal muscles.
Term
Sutural (Wormian) Bones
Definition
Small, flat, irregularly shaped bones between the flat bones of the skull. There are individual variations in the number, shape, and position of these bones. Their borders are like pieces of a jigsaw puzzle, and they range in size from a grain of sand to a quarter.
Term
Long Bones
Definition
Relatively long and slender. Located in the arm and forearm, thigh and leg, palms, soles, fingers, and toes. The Femur, the long bone of the thigh, is the largest and heaviest bone in the body.
Term
Irregular Bones
Definition
Have complex shapes with short flat, notched, or ridged surfaces. The spinal vertebrae, the bones of the pelvis, and several skull bones are irregular bones.
Term
Sesamoid Bones
Definition
Generally small, flat, and shaped somewhat like a sesame seed. They develop inside tendons and are most commonly located near joints at the knees, the hands, and the feet, Everyone has sesamoid patellae, but individuals vary in the location and abundance of other sesamoid bones. This variation, among others, accounts for disparities in the total number of bones in the skeleton.
Term
Short Bones
Definition
Small and boxy. Includes carpal bones and tarsal bones.
Term
Canal (Meatus)
Definition
A large passageway through the substance of a bone.
Term
Process
Definition
A projection or bump.
Term
Sinus
Definition
A chamber within a bone that is normally filled with air.
Term
Foramen
Definition
A small, rounded passageway through which blood vessels or nerves penetrate the bone.
Term
Fissure
Definition
An elongated cleft or gap.
Term
Trochanter
Definition
A large, rough projection.
Term
Facet
Definition
A small, flat articular surface.
Term
Fossa
Definition
A shallow depression or recess in the surface of the bone.
Term
Ramus
Definition
An extension of a bone that makes an angle with the rest of the structure.
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