Flashcards
Chapter 18 - Development of a Human Foetus
Cards in this deck (16)
- 1Describe some of the foetal development characteristics evident at 3 months of pregnancy- Forelimbs developed
- Eyelids closed
- Outer ear completed
- Bone marrow formed
- Blood cells formed in bone marrow
- Sex distinguishable - 2Describe some of the foetal development characteristics evident at 4 months of pregnancy- Arms and hands fully shaped
- Skeleton completed
- Exercising of muscles evident
- Ears stand out from head - 3Describe some of the foetal development characteristics evident at 5 months of pregnancy- Fine hairs cover body
- Gripping reflexes
- Increased growth - 4Describe some of the foetal development characteristics evident at 6 months of pregnancy- Respiratory movements
- Digestive glands functioning
- Tooth buds evident
- Eyebrows & eyelashes - 5Describe some of the foetal development characteristics evident at 7 months of pregnancy- Period of greatest growth
- All systems but respiratory functional - 6Describe some of the foetal development characteristics evident at 8 months of pregnancy- Accumulation of fat beneath skin
- Growth slowed
- Baby could survive if born prematurely at this month - 7Describe some of the foetal development characteristics evident at 9 months of pregnancy- Eyes open
- Nose formed
- Sucking and grasping reflexes
- Fine body hair is shed - 8List some effects on the mother during pregnancy- Abdominal growth from uterus (duh)
- Weight gain
- Increase in heart size
- Enlargement of breasts
- Increased blood flow & urine prod.
- Pressure on the bladder, feeling of needing to pee - 9What diet factors should the mother consider during the pregnancy- Increase energy intake
- Increase protein intake
- Increase of calcium, ion & folic acid intake
& not to do with diet, but she should also exercise - 10What are congenital disorders?Defects or diseases present at birth
- 11What are some factors that can cause congenital defects - give examples of defects they can cause1. Infections e.g. Rubella
2. Maternal diet e.g. listeriosis
3. Alcohol e.g. FASD
4. Smoking e.g. SIDS
5. Chemicals e.g. limb malformation from thalidomide - 12List 7 methods of diagnosing foetal health1. Ultrasound
2. Chromosome analysis
3. Fetoscopy
4. Foetal blood sampling
5. Foetal monitoring
6. Biochemical analysis
7. DNA probes - 13How do ultra sounds work?High frequency waves produce an image of the foetus
- 14One treatment of infertility is Artificial insemination by donor (AID), how does it work?Where donor's semen in injected to into woman's vagina
- 15How does IVF workWhere a man's sperm is used to fertilise a woman's egg in a laboratory and is then implanted into the woman's uterus
- 16How does GIFT work?AKA Gamete Intrafallopian transfer
Where egg and sperm are mixed together and injected into the uterine tubes. It is hoped that the gametes will fertilise this way
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- Year 11 ATAR Human Biology Chapter 18 - Development of a Human Foetus (UNIT 2)
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- Zita Wormuth
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