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Chapter 6 Anatomy
Anatomy Flashcards
25
Anatomy
Undergraduate 2
09/24/2013

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Term
Flat Bones
Definition
Have thin roughly parallel surfaces, also form the roof of the skull, the sternum, the ribs, and the scapulae.
Term
Osteocytes
Definition
Mature bone cells that cannot divide.
Term
Circumferential lamellae
Definition
Outer and inner surfaces of compact bone layer.
Term
Interstitial lamellae
Definition
Fill spaces between osteons.
Term
Perforating fibers
Definition
Created by osteoblasts in periosteum cellular layer
Term
Endosperm
Definition
Incomplete cellular layer lining medullary cavity
Term
Secondary ossification centers
Definition
form as capillaries and osteoblasts migrate into epiphyses
Term
Pituitary growth failure
Definition
Reduction in growth hormone leads to reduced epiphyseal cartilage activity and short bones
Term
Marfan syndrome
Definition
Causes long, slender limbs.Excessive cartilage formation at epiphyseal cartilage
Term
Gigantism
Definition
Overproduction of growth hormone before puberty
Term
Fibrodysplasia ossificans progressiva (FOP)
Definition
Gene mutation that causes bone deposition around skeletal muscles
Term
Acromegaly
Definition
Growth hormone levels rise after epiphyseal plates close
Term
Fracture
Definition
Crack or break due to extreme mechanical stress
Term
Internal callus
Definition
network of spongy bone uniting inner edges
Term
External callus
Definition
cartilage and bone stabilizes outer edges
Term
Transverse Fracture
Definition
Break shaft across long axis
Term
Spiral fracture
Definition
Produced by twisting stresses,Spread along length of bone
Term
Displaced Fracture
Definition
Produce new and abnormal bone arrangements
Term
Compression Fracture
Definition
In vertebrae subjected to extreme stresses
Term
Greenstick Fracture
Definition
One side of shaft broken, one side bent,Generally occurs in children
Term
Comminuted Fracture
Definition
Shatter affected area producing fragments
Term
Epiphyseal Fracture
Definition
If not monitored, breaks between epiphyseal plate and cartilage can stop growth at site
Term
Pott Fracture
Definition
At ankle and affects both leg bones
Term
Colles Fracture
Definition
Break in distal radius
Term
Axial skeleton
Definition
Contains 126 of the 206 bones in the body
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