6.6.3 Annotate a graph showing hormone levels in the menstrual cycle, illustrating the relationship between changes in hormone levels and ovulation, menstruation and thickening of the endometrium We begin with the hormone FSH (Follicle Stimulating hormone). 1) FSH increasing causing the ripening of the Graafian follicles and stimulating estrogen production (an example of positive feedback). 2) Increases in estrogen levels cause the repair of the endometrium and stimulate LH (Luteinizing hormone) production — this is another example of positive feedback. 3) A peak in LH levels cause ovulation (the release of the ovum from the ovary to the oviduct) and the subsequent development of the corpus luteum. The corpus luteum is a temporary endocrine structure formed after the release of the ovum from the graafian follicles. Its role is to secrete progesterone and therefore levels of progesterone increase. 4) Increasing levels of progesterone maintain the endometrium in preparation for fertilization. a. If fertilization does occur the corpus luteum continues to secrete progesterone and the endometrium lining is maintained. b. If fertilization does not occur, the corpus luteum disintegrates, therefore decreasing progesterone levels. This means the endometrium is no longer maintained and so menstruation (the loss of the endometrium) takes place. c. Since there is a negative feedback relationship between progesterone and FSH, decreasing levels of progesterone result in increasing levels of FSH and this brings us back to the beginning of the cycle where we started from.

6.6.3 Annotate a graph showing hormone levels in the menstrual cycle
- Post author:
- Post published:May 5, 2021
- Post category:Uncategorized
- Post comments:0 Comments
You Might Also Like

Patient Education Video: Low Testosterone

Human Body, Body Building Muscle Building Anatomy Physiology Video – 13

Hepatology Video – 1

Types of Human Body Tissue

Decline Dumbbell Bench Press – HASfit Lower Chest Exercise Demonstration – Decline Dumbbell Press

12 Best Shoulder Exercises (THE DELTOID DOZEN!!)

What Are The Benefits of Kidney Transplantation in Group Florence Nightingale Hospitals?

Fencing Video – 4

Which Exercises Help Target the Triceps Muscle Group? : Exercise Techniques

Biceps – stability ball curls

Best NUTRITION Advice (Beginner’s Guide to The Gym)

Home “Inner” Pec Exercises (4 BEST!)

Notes on ESR Part 1

do i really need alli? why not just diet and exercise?

How to do triceps dips on bench

Battling Ropes Circuit Training

Overweight & Obesity Video – 21

O que é Diazepam?

Physical Fitness Defined | The Definition of Physical Fitness

The Science of Heartbreak

WHAT IS SEMEN?

25 Foods For Heart Disease – Foods To Help Heart Disease

Six pack abs: Side plank with crossed legs

Spa Products Video – 3

Anabolic Steroids – History, Definition, Use & Abuse Video – 3

6.1 Skill: Produce an annotated diagram of the digestive system

Professional Warm Up for Any Sport!

Lungs exercise to increase the lungs capacity

Pranayama Video – 4

The ONLY Muscle Building and Fat Loss Advice You’ll Ever Need!

How to Do Back Extensions

Fluid and Electrolite System Body Fluids

Chess Video – 2

Top 5 Nutrition and Fitness Tips for Healthy Lifestyle

If White Rice is Linked to Diabetes, What About China?

Initial Symptoms That Your Blood Pressure Is Dangerously High. (1 OF 5 DO NOT KNOW THEY HAVE IT)!

Injection abscess at retteri kumaran hospital
Brain Damage

Can You Have Normal Blood Sugar And Still Be Insulin Resistant? | Dr.Berg

World’s Best Multivitamins at CHEMIST SHOP | Cheapest | Guaranteed Results

Killing Back , Bodybuilding , Hard Work Motivation , 5%nutrition , Trainhard , Fitness #Workout ,
