reproduction in humans hormones multiple choice

Question 1 - Question: The male hormone testesterone is produced by _________. 1. Leydig cells 2. Seminiferous tubules 3. Epididymis 4. Vas deferens Answer:..

In human beings, sexual reproduction takes place. Sexes are separate and hence they are known to exhibit sexual dimporphism. Males have sex organs called the tetes while the females have sex organs called the ovaries. Even in the external appearance, males and females show diffe..

Question 1 - Question: Loop of Henle is concerned with: 1. excretory system 2. reproductive system 3. nervous system 4. muscular system Answer:..

Summary - Animals may reproduce by asexual and sexual modes. The reproductive system of sexually reproducing animals consists of primary sex organs which produce the gametes, the secondary sex organs which participate in reproduction but do not form gametes and accessory sex cha..

Growth is an irreversible increase in size and weight of an organism. The cells of the body do not grow uniformly but differentially. The main types of growth are auxetic, multiplicative and accretionary. The human growth curve is sigmoid and is controlled by hormones..

These are a pair of rounded structures present on ventral thoracic wall with a nipple in its middle. The breast has about 20 lobes of mammary glands which are modified sweat glands. These lobes secrete milk to nourish the new born baby. Each lobe is separated from the others by dense connective and..

Growth is an irreversible increase in size and weight of an organism. The cells of the body do not grow uniformly but differentially. The main types of growth are auxetic, multiplicative and accretionary. The human growth curve is sigmoid and is controlled by hormones...

The male reproductive system comprises of a pair of testes that are present in a thin-walled sac called the scrotum . The scrotum is contained within the abdominal cavity in the embryonic stage. Shortly before birth, they come down and remain outside throughout life. This is because t..

. In males, puberty sets in between 13 to 15 years and in females, it sets in by the age of 11 to 13 years. The onset of puberty in females is also marked by a monthly event called menstruation cycle. This involves preparation by the uterus for receiving the fertilized egg or the zygote. The implan..

Increasing population is a serious issue, particularly in developing countries. It is necessary for every generation to produce more off springs because many individuals do not survive to reach the reproductive age due to natural causes. However, man has upset this equation as he has bee..