WebMar 24, 2024 · 2.6K views 4 years ago. The neurocranium is derived from the chondocranium (The cartilaginous braincase) and the dermatocranium (dermal bones derived from scales). … WebMost sharks and all chimaeras have two dorsal fins on the back between the head and caudal fin while a few sharks have only one dorsal fin and rays vary with two, one, or no dorsal fins. Some sharks have fin spines on the front edges of their dorsal fins. All cartilaginous fishes have 4 to 7 pairs of gill slits on the sides or underside of the ...
(PDF) Osteocranium Anatomy of African Catfish (Clarias gariepinus ...
WebA descriptive and comparative neurocranium morphology of Anguilliformes fishes in Taiwan waters more WebObjectives. Gain familiarity with the basic regions of the vertebrate skull—neurocranium, splanchnocranium, dermatocranium. Identify the basic components of the shark chondrocranium. Identify the elements of the fish head listed below and recognize the … Tooth attachment to the jaws. Acrodont teeth attach to the jaw with or without a … Figure 4.7. Tympanic region of the opossum skull. Didelphis virginiana specimen … rawhide channel
Neurocranium - Wikipedia
WebFish otoliths are the specialized hard parts of the actinopterygian and sarcopterygian acoustico-lateralis system, situated in the membranous labyrinths in the otic capsules of the neurocranium. Bony fishes … WebThe second arch-derived hyomandibula (purple) (Hm; the dorsal component of the hyosymplectic), which affixes the viscerocranium to the neurocranium via the otic cartilage, is the homolog of the mammalian stapes (St). (B) The anterior end of the larval fish neurocranium is a model for the mammalian hard palate. WebJun 9, 2024 · Neurocranium . The chondrocranium of bony fishes is derived from cartilaginous capsules that formed around the sense organs. Toclarify spatial … simple edm outfits