KINESIOL 1A03 Lecture Notes - Lecture 3: Mesonephric Duct, Pronephros, Gastrointestinal Tract
14 Sep 2016
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Document Summary
28 days lungs begin as a single mid-line evagination of the foregut the evagination will become the future trachea lung buds branch off of the developing trachea later forming lung buds. Branching of buds start to build the primary bronchus, secondary and tertiary etc. continue for up to 19 generations (branch) separate gut tube and trachea. Building the lobes right side has three lobes and left side only has two lobes (need space for the heart) Help with remove waste from blood, acid base balance, blood volume, blood pressure balance. Allantois: extension of endoderm layer connect to the hindgut portion nearest cloaca enlarges to become urinary bladder system begin by multiply mesoderm mass cells. Mesoderm differentiates into the pronephros (has tubules but not functional) Mesonephros: caudal extension (grow toward the caudal end of the embryo) pronephros has tubules inside and join together at mesonephric duct these tubes contact with circulation they can filtering the blood, bp balance etc.
