“Early in the first weeks of embryonic development, the primitive large germ cells called primordial germ cells are present in the yolk sac. These primordial germ cells migrate by ameboid movement from the yolk sac to the genital ridges”
“The ovaries shape varies according to the species and stage of estrous cycle. The functional ovary of a Polytocous animal (sow, female dog or cat) has several follicles or corpora lutea which give the appearance of a cluster of grapes”
“During embryogenesis of the genital system the male and female reproductive organs develop from in-different structures”
Homologies of male and female reproductive systems Read More »
“In all living organisms, reproduction is essential to continuity of the species. In mammals, reproduction depends upon the union of anisogametes produced by dimorphic individuals designated as male and female”
“Sex is the total morphological, physiological and psychological differences between male and female”
“There are no feed back regulation for Gastro Intestinal hormones hormones. Presence of food or GIT environment stimulates their secretion and Removal of the stimulus stops secretion”
“Atrial natriuretic peptide causes decrease in blood pressure and it also inhibits renin secretion”
“Prostaglandins have varied functions and play a prominent role in causing pain, inflammation and fever”
“Thymus gland is large and active gland in the newborn, reaches full activity at puberty and thereafter declines in activity slowly. The thymus is a lymphoid organ found on both sides of the trachea”
“Pineal gland contains the highest content of serotonin and the enzyme N-methyl transferase which converts serotonin to melatonin”
