UNIT 2 - KA1
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Name the parts in the male reproductive system (8 parts)
Bladder , seminal vesicles, prostate gland, sperm duct, testis, scrotum, urethra
Draw a diagram showing the male reproductive system with labels
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What are sperm (spermatozoa)
Sperm (spermatozoa) are male gametes
Where are sperm produced and howb
Continually produced in the testes by the process of meiosis
Which cells are sperm produced from
The sperm are produced from germline cells
Where are germline cells found
The sperm are produced from germline cells found in the seminiferous tubules
What do seminiferous tubules unit to form
Seminiferous tubules which unite to form coiled tubes that connect with sperm ducts
Draw a diagram of the close up of the testis
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Draw a diagram of a close up of seminiferous tubules
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What is the function of interstitial cells
To produce testosterone
What do sperm require in order to swim to the egg and fertilise it
In order to swim to the egg (ovum) and fertilise it, sperm require energy as well as fluid medium to swim in
In what form are the sperm released from in the man
The sperm are released from the man in a milky coloured liquid called semen
Where does the fluid in semen come from
The fluid in the semen mainly comes from seminal vesicles and the prostate gland
What are the accessory glands
Seminal vesicles and prostrate gland
What is the importance of the secretions from the seminal vesicles and prostate gland to fertilisation
The prostate gland and seminal vesicles secrete fluids that maintain the mobility and viability of the sperm
Name the parts in the female reproductive system (7)
Ovary, uterus, vagina, cervix, endometrium, muscular coat, oviduct
Mark on the female reproductive system where fertilisation takes place
Oviduct
What are the steps that happen to the egg when fertilisation take place?
• the fertilised egg is known as a zygote • divides and develops into a ball of cells (blastocyst) • now known as an embryo • differentiation of cells within the embryo • implantation of embryo into uterus
Draw a diagram showing the changes occurring in an ovary during the menstrual cycle
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What are eggs (ova)?
Eggs (ova) are female gamete cells formed from germline cells inside the ovary (by MEIOSIS)
What does the menstrual cycle start with
Inside the ovary are immature eggs at various stages of development
What is the function of the follicle surrounding the egg
Each egg is surrounded by a follicle which functions to protect the egg and secrete the hormone oestrogen
What happens to the egg during the first half of the menstrual cycle
During the first half of the menstrual cycle the follicle gradually develops, filling with fluid
What happens to the follicle at ovulation
At ovulation the follicle bursts releasing the egg