299913
Descrição
FlashCards por gina_evans0312, atualizado more than 1 year ago
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Criado por gina_evans0312
mais de 10 anos atrás
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| Questão | Responda |
| Periostium | Bones Outer Lining |
| Endostium | Inner Lining of the Bone |
| Periostial Artery | Provides periostium and compact bone |
| Nutrient Artery | Pierces compact bone & supplies medullary cavity, spongy bone & deeper compact bone |
| Epipysis | Top and bottom of long bone (spongy bone) |
| Metaphysis | Actively dividing area that increases bone length |
| Diaphysis | Long thin part of long bone (contains mostly compact bone) |
| Epiphyseal artery | Supplies epiphysis with blood |
| Metaphyseal artery | Supplies metaphysis with blood |
| Bone is made of... | A calcified extracellular matrix and bone cells |
| What determines flexibility in bone? | Collagen |
| Skeletal system is divided into two parts- what are they | Axial & Appendicular Skeleton |
| Osteoblasts in the epiphyseal plate... | Increase bone length |
| Osteoblasts in the inner/outer periostium... | Increase bone width |
| Spongy bone histology | No specific structure |
| Why are there spaces between trebaculae? | To allow for bone marrow |
| Spongy bone with a thin layer of compact bone is usually found in... | Short/flat/irregular bones |
| Bone formation begins at... | 6 weeks (in a fetus) |
| Mesanchyme Cells | Potentially differentiate into bone cells |
| 2 Methods of fetal bone formation.... | Endochondral and Intramembranous |
| Endochondral Bone Formation | Develops on a cartilaginous model |
| Spongy and compact bone form together/separately | Separately |
| When bone formation is nearly complete, what part is still cartilage? | The epiphyseal plate |
| Lesser Trachauter | Appears 13-14 years Fuses 18th year |
| Head of Long Bone | Appears 1st Year Fuses 18th Year |
| Lower Extremity | Begins in fetus- 9 months Fuses 20th year |
| Greater Trachauter | Appears 4th Year Fuses 18th Year |
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