WebNotochord definition, a rodlike cord of cells that forms the chief axial supporting structure of the body of the lower chordates, as amphioxus and the cyclostomes, and of the embryos … In anatomy, the notochord is a flexible rod which is similar in structure to the stiffer cartilage. If a species has a notochord at any stage of its life cycle (along with 4 other features), it is, by definition, a chordate. The notochord consists of inner, vacuolated cells covered by fibrous and elastic sheaths, lies along the … See more The notochord is a long, rodlike structure that develops dorsal to the gut and ventral to the neural tube. The notochord is composed primarily of a core of glycoproteins, encased in a sheath of collagen fibers … See more Research into the notochord has played a key role in understanding the development of the central nervous system. By transplanting and … See more • Surface view of embryo of Concolor gibbon (Hylobates concolor). • Diagram of a transverse section, showing the mode of formation of the amnion in the chick. • Section through the head of a human embryo, about twelve days old, in the region of the hind … See more The notochord plays a key role in signaling and coordinating development. Embryos of modern vertebrates form transient notochord structures during gastrulation. The notochord is found ventral to the neural tube. Notogenesis is the … See more The notochord is the defining feature (synapomorphy) of chordates, and was present throughout life in many of the earliest chordates. Although the stomochord of hemichordates was once thought to be homologous, it is now viewed as a See more
Notochord - Embryology - UNSW Sites
WebDec 29, 2010 · A notochord is a hollow nerve chord which ends in a brain. Other chordates include the Cephalochordates (lancelets) and Urochordates (tunicates). As the embryo develops only jawless fish retain... WebIn anatomy, the notochord is a flexible rod formed of a material similar to cartilage. If a species has a notochord at any stage of its life cycle, it is, by definition, a chordate. ... In Lancelets the notochord persists throughout life as the main structural support of the body. sharepoint site types o365
Notochord - Simple English Wikipedia, the free encyclopedia
WebSep 15, 2024 · The word notochord comes from the Greek words notos (back) and chorde (cord). It is a rigid, cartilaginous rod that is present at some stage of development in all … WebStomiidae is a family of deep-sea ray-finned fish, including the barbeled dragonfishes.They are quite small, usually around 15 cm, up to 26 cm. These fish are apex predators and have enormous jaws filled with fang-like teeth. They are also able to hinge the neurocranium and upper-jaw system, which leads to the opening of the jaw to more than 100 degrees. WebMay 31, 2016 · Notokorda: sebuah tongkat yang cukup fleksibel dari semacam tulang rawan yang memanjang di dalam tubuh bagian dorsal, tepat di bawah tali saraf dorsal. Notokorda ini berfungsi sebagai kerangka sumbu tubuh yang cukup kuat namun fleksibel. Pada Vertebrata, Notokorda hanya terlihat pada fase embrio dan kemudian berkembang … sharepoint site usage report power automate