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Human growth and development

Reproductive systems

Felicity Welch

on 4 January 2013

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Transcript of Human growth and development

Fetal development Sexually Transmitted Diseases Common STDs are;

Bacterial Vaginosis (BV)



Hepatitis, Viral

Herpes, Genital


Human Papillomavirus (HPV)

Pelvic Inflammatory Disease (PID)

Human Growth
Development Created by Felicity Welch Human Reproductive System
functions Males ~ To produce, maintain and transport sperm (the male reproductive cells) and protective fluid (semen)
~To discharge sperm within the female reproductive tract
~To produce and secrete male sex hormones
Females ~ The organs and structures of the female reproductive system give women the ability to produce ova to be fertilized by sperm. They also provide a place for the fetus to grow and develop. Other structures such as the breasts give the mother the ability to feed and
nourish a baby after birth. Resources http://www.patient.co.uk/health/the-female-reproductive-system




Male reproductive organs
and function Scrotal sac- contains and regulates temperature of testes

Testes- controls sperm and testosterone production

Epididymis- in charge of transport and storage of sperm cells

Glans penis- sensitive part of penis

Bulbourethral gland- controls penile lubricating fluid secretion

Urethra- tube that discharges semen and urine

Seminal vesicles- responsible for sperm nourishment

Prostate gland- secretes alkaline fluid to neutralize vaginal acids

Vas Deferens- transports sperm to urethra Female reproductive organs
and function Ovary- contains ova and is the site where fetus growth takes place and that shed the inner lining during ever menstrual cycle

Fimbriae- finger like projections to direct ovum to the fallopian tubes

Vagina- tube leading from uterus to exterior of body

Cervix- uterine entrance

Urethra- urine passageway

Clitoris- very sensitive area of sexual arousal

Labium minora- small lips protecting vaginal opening

Labium majora- large outermost lips protecting vaginal opening

Fundus- uppermost portion of the uterus Male reproductive system Female reproductive system key hormones Male ~Testosterone





Egg + Sperm = Fertilization

- fertilization of an egg by a sperm, normally
occurs in the fallopian tubes
- fertilized egg cell is called a zygote
- the zygote then moves to the uterus, where it implants into the lining of the uterine wall
-then it begins cells growth and becomes an
-after the first trimester it is referred to as a fetus
and continues to appear more human in
-it takes 40 weeks for the fetus to develop fully Fertilization Female ~FSH



~Progesterone Organogenesis Around four weeks, the tiny heart tube begins to form. The neural tube is well formed at month 2 and the digestive tract and sensory organs begin to develop and bone replaces cartilage. At 6 weeks the heartbeat can be detected. At 12 weeks the reproductive organs begin to develop. The nervous system starts to function at 16 weeks and reproductive organs and genitalia are now fully developed. At five months the fetus begins developing muscles and skin is fully formed and a coating is over it protecting it. Through the sixth and seventh months the fetus grows quickly and begins to reserve body fat. In the eighth month most of the internal systems are well developed but the lungs are still immature. By nine months the fetus’ lungs are developed and ready to breathe fresh air. Broken into two categories;
viral or bacterial Bacterial STDs can be prescribed medication, but viral ones have to wait until the conditions heals itself and medication can be taken to treat the symptoms of the disorder.
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