Bradley Chatterton, Kyra Mackesy, Emily Egazarian, Allison Lee and Erin PakPd.2

Gonad Glands (testes & ovaries)

• The production of steroid hormones.

Role & Function

• Organs that make gametes

• Gonads in males are the testes

• Gonads in females are the ovaries

• Gametes are haploid germ cells.

• In males they are spermatozoon and in the females they are the egg cells.

Role and Function

• MALE

• Testes hang in a pouch of skin called a scrotum outside the male body

• FEMALE

• Ovaries are on both sides of the uterus below the opening of the fallopian tubes

Location

• Estrogen and Progesterone

• Steroid Hormone

• Controls the cyclic changes within the uterus

• Ripening and discharge of the egg to be fertilized

• Prepare the lining of the uterus to receive a fertilized egg

• This linings subsequent dismantling

*All the events that occur as part of every women’s menstrual cycle*

Female Hormones

• Testosterone

• Steroid Hormone

• Occurs in men

• Stimulates development of male secondary sexual characteristics

Male Hormone

• DHT Deficiency– Dihydrotestosterone– Mutant gene inhibits the conversation of testosterone into DHT– Testes don’t descend into the scrotum– External genitalia is ambiguous– Internally male– Onset puberty testosterone released

Disease #1

• Hypogonadism– Occurs when your sex glands produce little or no sex hormones– Sex hormones help control sex characteristics

– Breasts and testicle development and pubic hair growth

– Play a role in menstrual cycle and sperm production

Disease #2

In females:- Loss of menstruation- Hot flashes- Loss of body hair

In males:- Breast enlargement- Decreased body hair- Muscle loss- Sexual issues

• Females are born with all the eggs they will ever have. Males don't start to make sperm until puberty, and continue to make new supplies their whole life.

• Andropause is male menopause. It is the result of a gradual drop in testosterone.

• The testes hang away from the body in the scrotum because sperm needs to be kept a few degrees cooler than body temperature to function best.

Fun Facts

• 1. The role of Gonads in males is to

A) make egg cells

B) make sperm cells

C) help with hair growth

D) protect organs

• 2. Name some symptoms of Hypogonadism in boys? In girls?

• 3. Name the hormones associated with gonad glands and which gonad they are produced in?

Concept Check

• B

• Girls: loss of menstration, hot flashes, sexual issues

• Boys: breast enlargement, decreased body hair, muscle loss, sexual issues

• Testosterone, estrogen and progesterone. Testes and ovaries.

Answers

• "Hypogonadism." Healthline. N.p., n.d. Web. 12 Mar. 2015. <http://www.healthline.com/health/hypogonadism#Overview1>.

• "The Endocrine System: Gonads." Gonads. N.p., n.d. Web. 12 Mar. 2015. <https://www.urmc.rochester.edu/childrens-hospital/endocrinology/gonads.aspx>.

• http://media-2.web.britannica.com/eb-media/33/53333-004-8B9F7E2F.jpg

• http://www.testogain.com/images/gonads_testicle_ovary.jpg

• http://www.faqs.org/health-encyc/images/tnismhe_02_img0038.jpg

• http://www.pauerhome.com/ryan/endocrine_system/endocrine_system_diagrams/gonads_diagram.jpg

• http://www.medicalook.com/systems_images/Gonads_large.gif

• http://www.physoc.org.nz/assets/images/models/Fig1.png

• https://www.boundless.com/biology/textbooks/boundless-biology-textbook/the-endocrine-system-37/endocrine-glands-214/pineal-gland-and-gonads-809-12047/

• http://f.tqn.com/y/biology/1/S/g/d/gonads.jpg

Bibliography