BIO 2135 Lecture Notes - Lecture 7: Aquatic Feeding Mechanisms, Chordate, Mesonephric Duct
16 May 2016
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Document Summary
Swims limit to vertebrate, fairly extensive lineage of organisms that are there, who are the vertabrates. Brain case, or swelling dorsal nerve cord, cased and protected. Coelom inside mesoderm block take little bit further, these mesoderm blocks continue to grow, there is something important that is happening in the wall of the mesoderm orgin of kidney excretory system of the whole group. And to see that, what you have to look at, to understand this, notochord is still there, here is a block of mesoderm, blood vessel coming in block of tissue around = colemic space. Stylize form giant coleom here is a pocket of the coelom, new glomerulous pressure filtration putting in low molecular compounds in filtrate. You have coelomic space, but little compartment, with blood vessel, blood pressure coming off dorsal aorta, there is a thiin wall in bp, thin wall in coelomic wall. Most animals gametes formed on septal walls and went out metnasphridia.
