Introduction
today we will learn about human reproduction. this topic is not as new as it sounds as you learners might have learnt about it when u were much younger especially when you asked your parents how babies were made and either had the talk of the bees and the bird or maybe a rather abstract one about a stork delivering you. In this lesson we will learn about the organs relevant to human reproduction and the process of human reproduction.
Task
Question 1
Fill in the missing words from the following statements:
1. The main function of the reproductive system is to ensure the survival of a species.
2. The structure of the male reproductive system that produces sperm cells and testosterone is called the ………………………………...
3. The ……………………….. is the tube extending from the bladder to the tip of the penis.
4. The bag of skin that controls the temperature and houses the testes is called the ………………………..
5. The …………………………………… are tubes found on either side of the uterus and connects it to the ovaries.
6. The …………………………….. is also called the neck of the uterus and opens into the vagina.
7. Sexual intercourse is also called …………………..
8. Fertilisation normally takes place in the ………………….. tubes of the woman.
9. The function of puberty is to bring …………………………………………………………. to the fore.
10. The process during which the lining of the uterus as well as the unfertilized egg cell leaves through the vagina is called ………………………………….
Question 2
Describe the process of human reproduction.
Process
The main purpose of puberty is for the sexual organs to mature. However, the hormones which are released from the reproductive organs also start a number of other changes in the human body. We call these secondary sexual characteristics.
Puberty brings about the following secondary changes in females:
- Breasts start to develop that may be used for breastfeeding a baby after childbirth.
- Pubic hair starts to grow at the onset of puberty. Underarm hair also starts to grow.
- Menstruation occurs in girls in a monthly cycle once they reach puberty.
- Body shape also changes due to the rising levels of oestrogen in the body.
- Body odour and acne develop as more oil is secreted and the smell of sweat in the body changes.
- Testicle and penis size increases.
- Hair starts to grow on the pubic areas, the limbs, chest and the face.
- Voice becomes deeper as the larynx (voice box in your throat) grows.
- Body shape changes occur as the skeletal muscle and bones increase in size and shape.
- Body odour and acne start to develop, as with females.
Vagina
The vagina is a tube that connects the uterus with the outside of the body. During intercourse the vagina acts as a canal for the penis to fit into to deliver sperm.
2. Uterus
The uterus is hollow with extremely strong muscular walls that can carry and protect a baby. Two oviducts (Fallopian tubes) at the top of the uterus, connect it to the ovaries. The bottom neck of the uterus is called the cervix, which is tightly closed to protect the inside of the uterus.
3. Ovaries
There are two ovaries on either side of the uterus. They produce oestrogen and contain the ova. Each month the ovaries take turns to produce a mature ovum. This is called ovulation.
4. Oviducts (Fallopian tubes)
The uterus and ovaries are connected through a pair of muscular tubes called the oviducts or Fallopian tubes. The mature ovum travels into these tubes to the uterus. Fertilisation occurs in the oviduct.
Ovulation
Once a month, one of the ovaries releases one mature ovum into the oviduct. This process is called ovulation. At the same time the uterus wall thickens and develops extra blood vessels. This is in preparation for the possible implantation of a fertilised egg.
Evaluation
question one (10 marks)
this question will require students to recall terminology learnt in the lesson
question two (5 marks)
is much more complex learners will be required to show their understanding and comprehension of human reproduction
Conclusion
Credits
15 marks
Teacher Page
1. introduction of human reproduction
2. task, 2 questions on human reproduction worth 15 marks
3. process, brief explanation they could read that could help them answer task
4. evaluation, documenting mark allocation and what is being tested
5. conclusion, video on human reproduction to enforce
6. marks awarded for the task.