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Skeletal System
Flashcards created based on information from Chapter 6.
27
Biology
Undergraduate 1
05/28/2014

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Term
Trochanter
Definition
Large, rough projection of bone
Term
Metaphysis
Definition
Narrow zone that connects the epiphysis to the bone shaft
Term
Diaphysis (Shaft)
Definition
Long, tubular section of bone
Term
Epiphysis
Definition
Trabecular (spongy) bone surrounded by a thin covering, or cortex, of compact bone
Term
Red Bone Marrow
Definition
Highly vascular tissue located in the medullary cavity (innermost part) of bone; site of red blood cell production
Term
Yellow Bone Marrow
Definition
Adipose (fat) tissue located in the medullary cavity
Term
Osteocyte
Definition
Mature bone cells
Term
Osteoblasts
Definition
Cells which produce new bone matrix via osteogenesis (ossification)
Term
Osteoid
Definition
Organic matrix produced by osteoblasts during ossification
Term
OSteolysis (resorption)
Definition
Enzymes secreted by osteoclasts dissolve the matrix and release stored minerals
Term
Flat Bones
Definition
Thin, roughly parallel surfaces
Term
Long Bone
Definition
Long, slender bone
Term
Sutural Bone
Definition
Cranial bones; bones that join together
Term
Irregular Bones
Definition
Bone with complex shapes
Term
Sesamoid Bones
Definition
Small, flat bone shaped similarly to a sesame seed
Term
Short Bones
Definition
Small, boxy bone
Term
Fossa
Definition
Shallow depression or recess in a bone structure, such as the pelvis
Term
Appositional Growth
Definition
Increase in the diameter size of existing bone
Term
Intramembranous Ossification
Definition
Bone begins to develop deep in the dermis; cartilage slowly hardens into bone, such as during the development of a fetus
Term
Achondroplasia
Definition
Epiphyseal cartilage develops very slowly; the trunk of the patient would be a normal size, whereas the limbs wold seem shorter than normal.
Term
Marfan Syndrome
Definition
Excessive epiphyseal cartilage formation causes long, slender limbs, and other connective tissue abnormalities cause cardiovascular issues
Term
Fibrodysplasia Ossificans Progressiva (FOP)
Definition
A gene mutation causes excess bone development around the skeletal muscles, severely limiting mobility.
Term
Transverse Fracture
Definition
Break along the axis of a bone
Term
Spiral Fracture
Definition
Produces by twisting stresses, such as if an anaconda were to wrap itself around the limb of a person
Term
Displaced Fracture
Definition
The broken bone is misaligned from its normal position
Term
Compression Fracture
Definition
The vertebrae in the back might fracture in this way under instances of extreme stress
Term
Greenstick Fracture
Definition
Most common in children due to the fact that bone is still not fully developed, the bone appears broken on one side and bent on the other.
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