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frequently missed questions - F MQ: Exam 1: Embryonic...

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FMQ: Exam 1: Embryonic development: o Endoderm o Mesoderm o Notochord o Ectoderm o Neuralation o neural groove o Neural tube o Neural crest Cartilage: o Fibrocartilage: Contains cartilage Highly resistant to tension and compression Does not tolerate repeated bending o Elastic: Contains cartilage and elastic fibers Tolerate repeated bending Not resistant to tension Osteons: columns of concentrated layers of bone When long bones grow: o New bone is added on both sides of the epiphyseal plates
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Ossification: o Intramembranous: most bones of skull, cartilage o Endochondrial: grow as sketelton grows Humans have a dorsal hallow nerve cord at some point in development, not a ventral hallow nerve cord First cells to migrate through or below the primitive streak become part of the endoderm Remaining cells become ectoderm Gap junctions allow for the exchange of intracellular fluid between adjacent epithelial cells Fibroblasts, chondroblasts, and osteoblasts all synthesize collagen
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frequently missed questions - F MQ: Exam 1: Embryonic...

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