Menstrual Cycle Organization Chart printable pdf download

Menstrual Cycle Organization Chart

Name __________

Per. ________

Menstrual Cycle Organization Chart

A "G" means that the name of a Gland should be filled in, and an "H" means

that a name of a Hormone should be used.

Day 1: The hypothalamus sends a hormone message (GnrH) to the (G) ______________

due to the low levels of (H) _____________ and (H) ______________ in the blood.

As a result of the above the (G) ____________ starts to make (H) ______________ and

(H) ____________. These hormones will send a message to the (G) ________________.

Day 4 to 6: The Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH) cause

the follicle in the ovary to make (H) ______________. This (H) _____________ causes

the walls of the Uterus to _____________________________ . This will continue until

about the ____

day of the cycle.

Day 14: A sudden increase in (H) ____________ causes the ______________ to

_____________. This is called _________________.

The ruptured (used) follicle now becomes the __________________ .

Day 15: This new ______________________ now makes and releases Estrogen and

(H) _________________ which continue to help the build up of _____________ in the

lining of the ________________ .

Day 16: The increase in the levels of Estrogen and (H) ________________ in the

blood send a feedback message to the pituitary gland to slow down the production of

(H) __________________ and (H) _________________ .

Day 26 to 31: If the Ovum is not fertilized the Corpus Luteum ____________________

and the levels of (H) ________________ and (H) _________________ in the blood

drop to a low level. As a result of this change what happens to the Uterus?

___________________________________________

(put your answer here)

* Now the hormones are at the same level as the beginning and the Menstrual Cycle starts

all over again.

Menstrual Cycle Organization Chart