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13 Cards in this Set
- Front
- Back
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Pectoral Girdles |
Attach the bones of the upper limbs to the axial skeleton |
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Hip pointer |
Bruising of the superior iliac spine and associated soft tissues |
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Neurocranium |
Forms the bones of the skull, mesodermal in origin |
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Viscerocranium |
Forms the bones of the face, ectodermal in origin |
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cartilaginous neurocranium |
Consists of hyaline cartilage developed from mesenchyme at the base of the developing skull. Later undergoes endochondral ossification to form the bones at the base of the skull |
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Membranous neurocranium |
Consists of mesenchyme and later undergoes intramembranous ossification to form the flat bones that make up the roof and sides of the skull |
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Cartilaginous viscerocranium |
Delivered from the cartilage of the first two pharyngeal (branchial) arches. Forms ear bones and hyoid bone |
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Membranous viscerocranium |
Derived from mesenchyme in the first pharyngeal arch and forms facial bones |
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Notochord |
Solid cylinder of mesodermal cells that induced the mesenchyme cells to form the vertebral bodies, costal(rib) centers and vertebral arch arch centers |
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Upper limb buds |
These appear during the middle of the fourth week after fertilization, the upper limbs appear as small elevations at the sides of the trunk |
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Lower limb buds |
Appear two days after the upper limb buds |
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Hand plates |
Flattened distal segments of the upper buds |
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Foot plates |
Distal segments of the lower buds |
