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Chaper 6 flash cards
Chaper 6
20
Anatomy
Undergraduate 1
09/19/2012

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Cards

Term
How many bones are in the skeletal system?
Definition
206 bones
Term
Axial skeleton has how many bones?
Definition
80 bones
Term
Appendicular skeleton has how many bones?
Definition
126 bones
Term
Axial skeleton are bones of the ___, ___,___, and form ___?
Definition
-Bones of skull, thorax, and vertebral column
-Form longitudinal axis of body
Term
Apendicular skeleton form bones of the ___?
Definition
Bones of the limbs and girdles that attach them to the axial skeleton
Term
Skeletal system is composed of ___,___,___,and ___?
Definition
Bones,Cartilages,
Ligaments and other connective tissues
Term
Five functions of the skeletal system-
Definition
Support, storage of minerals,blood cell production,protection, leverage
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
-Individual variation in location and number
Term
Short bones
Definition
-Small and boxy
-Examples: bones of the wrist (carpals) and ankles (tarsals)
Term
Skull surface features
Definition
-Canal or meatus (large passageway)
-Process (projection or bump)
-Sinus (chamber within bone, usually filled with air)
-Foramen (small rounded passageway)
-Fissure (elongated cleft or gap)
Term
Humerus surface features
Definition
-Head (expanded proximal end that forms part of joint)
-Tubercle (small, rounded projection)
-Sulcus (deep, narrow groove)
-Tuberosity (small, rough projection; may occupy broad area)
-Diaphysis (shaft; elongated body)
-Trochlea (smooth, grooved articular process)
-Condyle (smooth, rounded articular process)
Term
Femur surface features
Definition
-Trochanter (large, rough projection)
Head
-Neck (narrow connection between head and diaphysis)
-Diaphysis
-Facet (small, flat articular surface)
-Condyle
Term
Pelvis surface features
Definition
-Crest (prominent ridge)
-Fossa (shallow depression or recess)
-Line (low ridge; more delicate than crest)
-Spine (pointed or narrow process)
-Ramus (extension that makes angle with rest of structure)
Term
Long bone features (five)
Definition
-Epiphysis (expanded ends)
-Outer covering of compact bone
-Articular cartilage
-Metaphysis (connects epiphysis to shaft)
-Diaphysis (shaft)
Term
medullary cavity (marrow cavity)
Definition
-Filled with marrow
-Red bone marrow (red blood cell production)
-Yellow bone marrow (adipose storage)
Term
Epiphysis (expanded ends)
Definition
-Consist largely of spongy bone (trabecular bone)
-Network of struts and plates
-Resists forces from various directions and directs body weight to diaphysis and joints
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