Assignment 4: The Human Reproductive System

 Starter:- Sort the keywords into two lists: one for the male system and one for the female system MaleFemale Scrotum Ovary Sperm Testes Sperm duct Uterus Vagina Ovum Oviduct Cervix

Male: Scrotum, Sperm, Testes, Sperm duct Female: Vagina, oviduct, ovary, uterus, cervix, ovum

 Read it out then try to describe to the class what it is…

What you need to do:  Complete the Human Reproductive System worksheet  Work in pairs / small groups to label the male and female reproductive organs. What you need to do:  Complete the Human Reproductive System worksheet  Work in pairs / small groups to label the male and female reproductive organs.

 The structure of the male and female reproductive organs, including functions of each part.  The process of gametogenesis (production of sex cells)  Fertilisation  The reproductive hormones  The menstrual cycle and hormone levels at different times of the month.  Fertility treatment and IVF (including analysis of data relating to hormones)

 The structure and function of the male and female sex organs  Gametogenesis (production of gametes)  Reproductive Hormones: What are they? How do they control fertility?

The ______ reproductive system * Sperm duct (Vas Deferens) * Testes * Scrotum * Urethra * Penis * Gland * Bladder * male

The ________ reproductive system * Uterus * Vagina * Cervix * Ovary * Fallopian Tube * female

 Now start thinking about what each reproductive part does.  Match the word to it’s function.

 Sometimes called the womb – if an egg is fertilised it will implant in the wall of the uterus and develop into a foetus  After puberty, an egg or ovum is released from here once every 28 days or so.  The opening or ‘neck’ of the uterus at the top of the vagina.  Connects the cervix to the outside of the body - sperm is deposited here by the penis during sex  The female sex cell – sometimes called an ‘egg’. UTERUS OVARY CERVIX OVUM VAGINA  Carries the ovum from the ovary to the uterus – the egg is fertilised here. OVIDUCT/ Fallopian Tube  Endometrium : The lining of the uterus, supports an embryo after implantation

Vas Deferens (Sperm Duct): Tube which sperm travels along from the testes. Epididymis: Where the sperm are stored  After puberty, these make sperm continuously.  A sac of skin which holds the testes. SCROTUM TESTES  The male sex cell – it is adapted to swim from the vagina to the egg. SPERM

The ________ reproductive system * Uterus * Vagina * Cervix * Ovary * Fallopian Tube * female

Outline the route taken from the testes by the sperm as it leaves the body Sperm leaves the testes and travels along the sperm duct which travels past/through the glands. The glands provide the sperm cells with food so that they have energy for swimming The sperm duct joins the urethra which carries the sperm out of the body.

Ovum Sperm cell Membrane Nucleus Cytoplasm Jelly coat Tail for swimming Sperm

 How much can you remember about meiosis from unit 18?  Have a go at the following: 1. What does a) Haploid and b) Diploid mean? 2. Why are gametes (sex cells) Haploid? 3. What are the stages of meiosis?

 The production of sperm and the production of ova are both examples of meiosis.  However, the processes differ in many ways because they result in different cells being made.  The production of ova is called Oogenesis  The production of sperm is called Spermatogenesis

 Fill in the following words / terms on the diagram:

OvulationDegenerating corpus luteum Day 14Ovum Corpus LuteumSecondary follicle Oocyte Primary follicles Primary Oocyte Oogonia

Spermatogonia Primary Spermatocyte Secondary Spermatocyte Sertoli Cells Spermatid Developing Spermatozoa

 Write a detailed description of this process…

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