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Compatative anatomy

Shark muscles

Myomeres Origin;Myosepta Insertion:myosepta Action:lateral flexion of body
Coracomandibular origin:coracoid bar Insertion:Mandibular cartilage Action:opens mouth and enlarges pharynx
coracoarcules origin:coracoid bar insertion:fascia of coracohyoids Action;opens mouth and enlarges pharynx
intermandibular origin:mandibular cartilage insertion:ventral midline(raphe) action:elevates floor of oral cavity
coracohyoids origin;connective tissue on coracoarcuals insertion:hyoid arch action:opens mouth,enlarges pharynx
interhyoid origin:hyoid cartilage insertion:ventral midline(raphe) action:elevates floor of oral cavity
pectoral ventral fin muscle origin:coracoid bar insertion:ventral surface of ptergiophores action:adducts pectoral fin
pectoral dorsal fin muscle origin:Scapular process insertion:dorsal surface of ptergiophores action:abducts pectoral fin
pelvic ventral fin muscle origin:puboischiadic bar and metapterygium insertion:radial cartilages action:adducts pelvic fin
pelvic dorsal fin muscle origin:Illiac process and metaptyergium insertion:radial cartilages action:abducts pelvic fin
adductor mandibulae origin:palatoquadrate cartilage insertion:mandibular cartilage action:closes the jaw
levator palatoquadrate origin:otic capsule insertion:Palatoquadrate cartilage action:elevates upper jaw and enlarges oral cavity
Spiracular Origin:otic capsules insertion:wall of spiracle action:opens spiracle
Preorbital origin:ventral side of orbit insertion:mandibular cartilage action:enlarges oral cavity
ventral hyoid constrictor origin:connective tissue over interhyoids insertion:lateral raphe action:constricts first branchial pouch
dorsal hyoid constrictor origin:connective tissue over epibranchials insertion:lateral raphe action:constricts the first branchial pouch
levator hyomandibulae origin:otic capsule insertion:hyomandibular cartilage action:pulls hyoid up and forward
dorsal superficial branchial constrictor origin:dorsal raphes insertion:interbrachial septa action:constricts branchial pouches
ventral superficial branchial constrictor origin:ventral raphes insertion:interbrachial septa action:constricts branchial pouches
cucullaris origin:connective tissue over epibranchials insertion:scapular process and last branchial arch action:protracts pectoral fin and elevates gill apparatus
Created by: ejohnson17



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