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In obstetrics, position is the orientation of the fetus in the womb, identified by the location of the presenting part of the fetus relative to the pelvis of the mother. Conventionally, it is the position assumed by the fetus before the process of birth, as the fetus assumes various positions and postures during the course of childbirth .
Pepsin exhibits a broad cleavage specificity. Pepsin will digest up to 20% of ingested amide bonds. [18] Residues in the P1 and P1' positions [19] are most important in determining cleavage probability. Generally, hydrophobic amino acids at P1 and P1' positions increase cleavage probability.
Preferential cleavage: hydrophobic, preferably aromatic, residues in P1 and P1' positions. Cleaves Phe 1 -Val, Gln 4 -His, Glu 13 -Ala, Ala 14 -Leu, Leu 15 -Tyr, Tyr 16 -Leu, Gly 23 -Phe, Phe 24 -Phe and Phe 25 -Tyr bonds in the B chain of insulin
Definition: Relationship between the longitudinal axis of fetus and mother: longitudinal (resulting in either cephalic or breech presentation) oblique (unstable, will eventually become either transverse or longitudinal) transverse (resulting in shoulder presentation) back up; back down (indication for vertical uterine incision during cesarean ...
Illustration of stomach wall showing gastric mucosa and the gastric glands The gastric glands are glands in the lining of the stomach that play an essential role in the process of digestion . All of the glands have mucus-secreting foveolar cells (also known as surface mucous cells) that line the stomach and partly line the gastric pits , and ...
In obstetrics, a cephalic presentation or head presentation or head-first presentation is a situation at childbirth where the fetus is in a longitudinal lie and the head enters the pelvis first; the most common form of cephalic presentation is the vertex presentation, where the occiput is the leading part (the part that first enters the birth canal). [1]
Obstetric ultrasonography, or prenatal ultrasound, is the use of medical ultrasonography in pregnancy, in which sound waves are used to create real-time visual images of the developing embryo or fetus in the uterus (womb).
Progesterone causes many changes to the genitourinary system. A pregnant woman may experience an increase in the size of the kidneys and ureter due to the increase blood volume and vasculature. Later in pregnancy, the woman might develop physiological hydronephrosis and hydroureter, which are normal. [33]