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Chapter 6 Osseous Tissue and Bone Structure
Tissue and Bones
25
Biology
09/25/2013

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Term
Axial skeleton (80 bones)
Definition
Bones of skull, thorax, and vertebral column
Form longitudinal axis of body
Term
Appendicular skeleton (126 bones)
Definition
Bones of the limbs and girdles that attach them to the axial skeleton
Term
Flat bones
Definition
Thin, roughly parallel surfaces
Examples: cranial bones, sternum
Term
Sutural bones (Wormian bones)
Definition
Irregular bones formed between cranial bones
Number, size, and shape vary
Term
Long bones
Definition
Relatively long and slender
Examples: various bones of the limbs
Term
Irregular bones
Definition
Complex shapes
Examples: vertebrae, bones of pelvis, facial bones
Term
Sesamoid bones
Definition
Small, flat, and somewhat shaped like sesame seed
Develop in tendons of knee, hands, and feet
Term
Short bones
Definition
Small and boxy
Examples: bones of the wrist (carpals) and ankles (tarsals)
Term
(Skull surface features)
Canal or meatus
Definition
large passageway
Term
(Skull surface features)
Process
Definition
projection or bump
Term
(Skull surface features)
Sinus
Definition
chamber within bone, usually filled with air
Term
(Skull surface features)
Foramen
Definition
small rounded passageway
Term
(Skull surface features)
Fissure
Definition
elongated cleft or gap
Term
(Humerus surface features)
Head
Definition
expanded proximal end that forms part of joint
Term
(Humerus surface features)
Tubercle
Definition
small, rounded projection
Term
(Humerus surface features)
Sulcus
Definition
deep, narrow groove
Term
(Humerus surface features)
Tuberosity
Definition
small, rough projection; may occupy broad area
Term
(Humerus surface features)
Diaphysis
Definition
shaft; elongated body
Term
(Humerus surface features)
Trochlea
Definition
smooth, grooved articular process
Term
(Humerus surface features)
Condyle
Definition
smooth, rounded articular process
Term
(Femur surface features)
Trochanter
Definition
large, rough projection
Term
(Femur surface features)
Neck
Definition
narrow connection between head and diaphysis
Term
(Pelvis surface features)
Crest
Definition
prominent ridge
Term
(Pelvis surface features)
Fossa
Definition
shallow depression or recess
Term
(Pelvis surface features)
Line
Definition
low ridge; more delicate than crest