Male and Female Reproductive systems Flashcards
What are the male reproductive organs (8)
Penis Testes Sperm Duct (Vas Deferens) Scrotum Urethra Seminal Vesicle Prostate gland Epididymis
What is the role of the Scrotum
Keeps the testes at a constant temperature for the development of sperm
What is the Urethra
A tube leading from the bladder through the penis to the tip
How does the penis become erect
It has special tissue which can be filled up with blood`
What are the sections of a sperm cell
Head - With Nucleus
Middle section - Mitochondria
Tail
What is the purpose of the bladder
Stores Urine
What is the purpose of the testes
Produce Sperm and Testosterone
What is the purpose of the epididymis
Stores sperm
What is the purpose of the vas deferens
Transports mature sperm to the urethra
What is the purpose of the seminal vesicle
Secretes fluid containing fructose that nourishes and protects sperm
What is the purpose of the prostate gland
Secretes an alkaline fluid that neutralises the effect of the acid in the vaginal canal
What is the purpose of the cowpers gland
Lubricates the urethra and neutralises acidity associated with the residual urine
What is semen
Fluid containing sperm
What are the female reproductive organs (5)
Fallopian Tubes Ovaries Uterus Cervix Vagina
What is the purpose of the ovaries
Produce the egg cells called ova
Produces Estrogen
What is the purpose of the fallopian tubes
Connects each ovary to the uterus
Also typically where fertilisation takes place
What are the main 2 characteristics of the uterus and what does it do
Thick muscular, pear shaped
Growth of developing fetus and embryo
Nutritional support for fetus - Development of Placenta
What is the role of the endometrium
Where the developing fetus is implanted
What is the Cervix
Neck of Uterus
What is the role of the vagina
Expels fetus during birth
Describe the pathway of the egg (Not fertilised)
An egg is released from one of the ovaries
Egg travels along fallopian tube to the uterus
Egg is swept along by tiny hairs in fallopian tube
If the egg is not fertilised it starts to break down as it is moved through the uterus to the vagina
Egg then passes out of the body
Describe the pathway of sperm (SEVEn UP)
Seminiferous tubules Epididymis Vas Deferens Ejaculatory Ducts nothing
Urethra
Penis
How many chromosomes are carried by a sperm
23
How does the structure of the sperm cell suit its function (5)
Can penetrate the egg Tail to propel the sperm Head is aerodynamic Contains DNA Mitochondria provides energy
