Human A&P
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34 Terms
how many bones are in the human body
206
how many cranial bones
8
how many facial bones
14
how many ear ossicles
6
how many total skull bones
28
how many cervical (neck) vertebrae
7
how many thoracic vertebrae
12
how many lumbar vertebrae
5
how many total non-fused vertebrae
24
how many fused sacral vertebrae
5
how many fused coccygeal vertebrae
4
how many total vertebrae
26
how many true ribs
1-7
how many false ribs
8-12
how many floating ribs
11-12
how many bones are in the axial skeleton
80
how many bones does the appendicular skeleton have
126
what are the physiology of skeletal tissues
movement, support, storage, protection, homeostasis, blood cell formation
anatomical axial
cranium, hyoid bone, vertebral column, sternum, rib cage, ear ossicles
anatomical appendicular
appendages, pectoral, pelvic girdles
development of bone tissue
connective tissue, mesenchymal cells of the mesoderm
connective tissue
contains osteocytes embedded in extracellular bone matrix
mesenchymal cells
mesoderm, gives rise to osteogenic stem cells
principle types of bone tissue
osteogenic cells, osteoblasts, osteocytes, osteoclasts
osteogenic cells
only bone cell that divide, gives rise to more specialized bone cells