The central communication conduit between the brain and the rest of the body is the

The central communication conduit between the brain and the rest of the body is the spinal cord. The spinal cord is a long thin structure that comes from medulla oblongata in the brain stem to the bottom of the spine. The spinal cord is made up of nerves that transmit messages between the brain and the rest of the body.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."