1) Chlamydia is a bacterial infection spread through sexual contact. Left untreated, it can cause serious complications.
Use the following websites to conduct research and answer the following questions:
https://myhealth.alberta.ca/Health/Pages/conditions.aspx?hwid=hw146904https://www.canada.ca/en/public-health/services/diseases/chlamydia.htmlA) Describe two effects of chlamydia on the female reproductive system ( 1 mark).
B) Describe two effects of chlamydia on the male reproductive system (1 mark).
C) Explain why chlamydia increases the risk of an ectopic pregnancy (1 mark).
D) Describe two complications that can occur in a newborn if chlamydia is passed to the baby during birth (1 mark).
E) Describe two methods that can be used to prevent the spread of chlamydia (1 mark).
2) Combination birth control pills contain estrogen and progestin. A typical pill packet contains 3 weeks of active hormones and 1 week of placebo pills. During the week of placebo pills, menstruation occurs.
Use your knowledge of the hormonol control of the female reproductive system to:
A) Explain how the pills alter the feedback pathways of FSH and LH to prevent pregnancy (2 marks).
B) Explain why menstruation occurs during the placebo week (1 mark).
3) How do tubal ligations and vasectomies prevent further pregnancies?
a. The Fallopian tube and vas deferens are cut and tied off, thereby reducing needed reproductive hormone levels.
b. The Fallopian tubes and the vas deferens are cut. Eggs and sperm can no longer be produced.
c. The Fallopian tubes and vas deferens are cut and tied off, thereby preventing the movement of the eggs and sperm.
d. The corpus luteum and the epididymis are suppressed using a chemical swab. The fertilized egg could no longer implant in the endometrium.
4) Identify two differences between a zygote and blastocyst.
5) During labour, a positive feedback loop is an integral part of the process.
A) Explain what a positive feedback loop is. (1 mark)
B) Describe TWO positive feedback loops that are part of parturition and/or lactation. For each pathway, identify the mechanism that triggers the response, the glands, and the hormones involved (2 marks)
6) SEE PHOTO ATTACHED
7) SEE SECOND PHOTO ATTACHED
8) a) Describe the process of neuralation. (1 mark)
b) Identify the germ layer from which the nervous system forms. (0.5 mark)
c) Describe when in development neurulation occurs. (0.5 mark)
d) Identify a teratogen that could affect the development of the brain during this stage of pregnancy. (1 mark)
9) Describe nutritional, excretory, respiratory, and immune functions of the placenta.
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