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vbsc 421 exam 1 lecture 9&10_1
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vbsc 421 exam 1 lecture 9&10Connective fibers (3) - ANS-Collagen, elastin, keratin
Structural tissues (2) - ANS-cartilage and bone
Cartilage - ANS-mucopolysaccharides on collagen fibers
Bone - ANS-- Hydroxyapatite mineral on collagen
Cartilage (3) - ANS-Hyaline, fibrocartilage, elastic
Bone (2) - ANS-Membranous (dermal) and endochondral (typical)
Neurocranium - ANS-braincase and associated w/ SENSORY CAPSULES
Skull bone origins (3) - ANS-Chondrocranium, splanchnocranium, dermatocranium
Chondrocranium contributes to___ - ANS-Braincase floor and sensory capsules (nasal,
otic, optic)
Chondrocranium composed of..(2) - ANS-cartilage, endochondral bone, or both
Chondrocranium embryonic cell types: - ANS-neural crest cells and mesenchymal cells
Chondrocranium components (5) - ANS-Trabeculae (anterior)
Polar cartilages (middle)
Parachordals (posterior)
Occipital cartilage (behind parachordals)
Sensory capsules
Splanchnocranium - ANS-most ancient portion of the skull- branchial arches
Functions of splanchnocranium - ANS-Support of gills (fish), attachment for respiratory
muscles (tetrapods), jaw developments (gnathostomes), Hyoid apparatus
Jaw development: Serial theory - ANS-Suggested 1st and second visceral arches gave
rise to mandibular and hyoid arch, respectively
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