What are the parts of pylorus? The incisura angularis divides the stomach into a body to the left and a pyloric portion to the right. The sulcus intermedius further divides the pyloric portion of the stomach: the pyloric vestibule to the left, denoted by an outward convexity of the greater curvature. The pyloric antrum or pyloric canal to the right The pyloric antrum is 2.5 cm and terminates in pyloric orifice into duodenum. What happens to the normal anatomical structural in CHPS? In infants with IHPS, the pyloric ring is no longer identifiable as a clearly definable separation between the normally distensible pyloric antrum and the duodenal cap. Instead, a channel of variable length (1.5–2.0 cm) corresponding to the pyloric canal separates the normally distensible portion of the antrum from the duodenal cap. · Infantile hypertrophic pyloric stenosis was first fully described by Harald Hirschsprung in 1888. · IHPS VS CHPS - ????? IHPS is would b
Parts of DNA Phosphate group + sugar + Base (nitrogenous base) Difference between sugar of DNA and RNA DNA has deoxyribose sugar(1 OH group attached to sugar and RNA has ribose sugar (2 OH groups) Nucleotide and nucleoside Nucleotide = Phosphate group + Base + sugar Nucleoside = Base and sugar Types of Nitrogenous base Purines and Pyrimidines Purines consists of Pure As Gold = Adenine and Guanine Pyrimidine consists of CUT the pyramids Cytosine Uracil (only in RNA) Thymine Purine nucleosides are Adenosine and Guanosine Pyrimidine nucleosides are Cytidine, Uridine and Thymidine Purine nucleotides Adenosine monophosphate, Guanosine MP How is DNA packed inside nucleus ? In the form of chromatin which is further condensed to form chromosomes What is a nucleosome ? DNA coiled twice around an octamer of Histone composed of (H2A, H2B, H3, H4) x2 with linker H1 protein. Positive and Negative charge of Chromatin Positive charged = Lysine and Arginine of Histone which bind to negative char