Which of the following hormones helps in the contraction of the uterus during childbirth?

The hormone responsible for an increase in blood pressure and a decrease in the water content of urine is . . . . . . .

$A$ circulatory system,which is formed by capillaries and ends with capillaries,is known as:

$ACTH$ is secreted by:

Which of the following is an accumulation and release centre of neurohormones?

$A$ milkman is very upset one morning as his cow refuses to give any milk. The milkman's wife gets the calf from the shed. On feeding by the calf,the cow gave sufficient milk. Describe the role of the endocrine gland and the pathway associated with this response.