Draw a diagram of the reproductive system of the human female - Leaving Cert Biology - Question 14 - 2009
Question 14
Draw a diagram of the reproductive system of the human female.
On your diagram indicate where the following occur:
1. Meiosis.
2. Fertilisation.
3. Implantation.
Gi... show full transcript
Worked Solution & Example Answer:Draw a diagram of the reproductive system of the human female - Leaving Cert Biology - Question 14 - 2009
Step 1
Draw a diagram of the reproductive system of the human female.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Meiosis: Indicated at the ovary where oocytes undergo meiosis.
Fertilisation: Indicated at the fallopian tube where sperm meets the oocyte.
Implantation: Indicated at the uterus where the fertilized egg implants.
Step 2
Give an account of the role of either oestrogen or progesterone in the menstrual cycle.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Oestrogen is responsible for repairing the endometrium after menstruation, stimulating the production of LH (Luteinizing Hormone), and inhibiting FSH (Follicle Stimulating Hormone) production, thereby regulating the menstrual cycle.
Step 3
Name a human female menstrual disorder. In the case of this disorder give:
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
A possible cause: Polycystic Ovary Syndrome (PCOS) can cause irregular menstrual cycles due to hormonal imbalances.
A method of treatment: Treatment options may include hormone therapy or lifestyle changes such as weight management.
Step 4
Give an account of the importance of the placenta during human development in the womb.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The placenta plays a crucial role in providing oxygen and nutrients to the developing fetus while removing waste products. It acts as a barrier to protect the fetus from infections and also produces hormones essential for pregnancy maintenance.
Step 5
From what tissues is the placenta formed?
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The placenta is formed from maternal tissues, specifically the uterine lining, and embryonic tissues originating from the fertilized egg.
Step 6
Outline how birth occurs.
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Birth involves a series of hormonal changes leading to contractions of the uterus, the rupture of membranes (waters breaking), and the eventual delivery of the baby through the cervix.
Step 7
What is meant by in-vitro fertilisation?
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
In-vitro fertilisation (IVF) is a process where an egg is fertilized by sperm outside the female body, typically in a laboratory dish, before being implanted into the uterus.
Step 8
After implantation, the embryo first develops into a morula and then into a blastocyst. Explain the terms in italics.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Morula: The morula is a solid ball of cells formed after several divisions of the zygote.
Blastocyst: The blastocyst is a hollow ball of cells that forms after the morula stage and is the structure that implants into the uterus.
Join the Leaving Cert students using SimpleStudy...
