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When Health Begins
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Prenatal Development DVD
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Multilingual Illustrated DVD
Multilingual Illustrated DVD
[Tutorial]
The Biology of Prenatal Development
Introduction
0 - 4 Weeks
4 - 6 Weeks
6 - 8 Weeks
8 Weeks
8 - 12 Weeks
3 - 4 Months
4 - 6 Months
6 Months - Birth
IBHAYOLOJI YANGAPHAMBILI KOKUBELETHWA KOMNTWANA
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Ndebele
[Sindebele (Ndebele)]
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Table of Contents
Chapter 1 – Introduction
Chapter 2 – Terminology
THE EMBRYONIC PERIOD (THE FIRST 8 WEEKS)
EMBRYONIC DEVELOPMENT: THE FIRST 4 WEEKS
Chapter 3 – Fertilization
Chapter 4 – DNA, Cell Division, and Early Pregnancy Factor (EPF)
Chapter 5 – Early Stages (Morula and Blastocyst) and Stem Cells
Chapter 6 – 1 to 1 1/2 Weeks: Implantation and Human Chorionic Gonadotropin (hCG)
Chapter 7 – The Placenta and Umbilical Cord
Chapter 8 – Nutrition and Protection
Chapter 9 – 2 to 4 Weeks: Germ Layers and Organ Formation
Chapter 10 – 3 to 4 Weeks: The Folding of the Embryo
EMBRYONIC DEVELOPMENT: 4 TO 6 WEEKS
Chapter 11 – 4 Weeks: Amniotic Fluid
Chapter 12 – The Heart in Action
Chapter 13 – Brain Growth
Chapter 14 – Limb Buds and Skin
Chapter 15 – 5 Weeks: Cerebral Hemispheres
Chapter 16 – Major Airways
Chapter 17 – Liver and Kidneys
Chapter 18 – Yolk Sac and Germ Cells
Chapter 19 – Hand Plates and Cartilage
EMBRYONIC DEVELOPMENT: 6 TO 8 WEEKS
Chapter 20 – 6 Weeks: Motion and Sensation
Chapter 21 – The External Ear and Blood Cell Formation
Chapter 22 – The Diaphragm and Intestines
Chapter 23 – Hand Plates and Brainwaves
Chapter 24 – Nipple Formation
Chapter 25 – Limb Development
Chapter 26 – 7 Weeks: Hiccups and Startle Response
Chapter 27 – The Maturing Heart
Chapter 28 – Ovaries and Eyes
Chapter 29 – Fingers and Toes
THE 8-WEEK EMBRYO
Chapter 30 – 8 Weeks: Brain Development
Chapter 31 – Right- and Left-Handedness
Chapter 32 – Rolling Over
Chapter 33 – Eyelid Fusion
Chapter 34 – "Breathing" Motion and Urination
Chapter 35 – The Limbs and Skin
Chapter 36 – Summary of the First 8 Weeks
THE FETAL PERIOD (8 WEEKS THROUGH BIRTH)
Chapter 37 – 9 Weeks: Swallows, Sighs, and Stretches
Chapter 38 – 10 Weeks: Rolls Eyes and Yawns, Fingernails & Fingerprints
Chapter 39 – 11 Weeks: Absorbs Glucose and Water
Chapter 40 – 3 to 4 Months (12 to 16 Weeks): Taste Buds, Jaw Motion, Rooting Reflex, Quickening
Chapter 41 – 4 to 5 Months (16 to 20 Weeks): Stress Response, Vernix Caseosa, Circadian Rhythms
Chapter 42 – 5 to 6 Months (20 to 24 Weeks): Responds to Sound; Hair and Skin; Age of Viability
Chapter 43 – 6 to 7 Months (24 to 28 Weeks): Blink-Startle; Pupils Respond to Light; Smell and Taste
Chapter 44 – 7 to 8 Months (28 to 32 Weeks): Sound Discrimination, Behavioral States
Chapter 45 – 8 to 9 Months (32 to 36 Weeks): Alveoli Formation, Firm Grasp, Taste Preferences
Chapter 46 – 9 Months to Birth (36 Weeks through Birth)
Chapter 1
Introduction
Isikhathi sokukhula kweseli libe Yizayigothi eyenza umuntu kuba li 100 leengidigidi zamaseli akhulileko futhi lokho kuyinto emangazako ekudalweni koke okukhona.
Abacwaningi kwanjesi bayazi ukuthi okwenziwa mzimba okhulileko malanga wonke kuyakhela ngesikhathi sokukhulelwa - ngaphambili kwesikhathi sokubeletha.
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Isikhathi sokukhula ngemva kokubeletha saziwa khulu njengesikhathi sokulungiselela ngesikhathi ukukhula komuntu kuba nokwakheka okuhlukeneko, befuthi kuzibandula ngelwazi elinengi elifunakalela ukuphila ngemva kokubelethwa.
Chapter 2
Terminology
Ukukhulelwa ebantwini kuvamise Ukuthahta okungasenani iimveke ezi-38 njengoba kumediwe kusukela ngesikhathi sokukhulelwa, noma sokumumatha, kufikela abeletha.
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Ekuthomeni kwemveke eziyi-8 zokuthoma ngemva kokumumatha umuntu okhula ngaphakathi kuthiwa yi-embryo, okusho ukuthi ``khula ngaphakathi." Isikhathesi, esibizwa ngokuthi Yi-embryonic period, sibonakala ngokukwakheka kweenkambiso zomzimba ezinkulu.
See Snapshots
Ekusukeni kokuphela kweemveke ezi-8 Bekufike ukupheleni kokukhulelwa, "umuntu okhulako ubizwa nge fetus," okutjho ukuthi "mntwana ongakabelethwa." Ngesikhathesi, esibizwa nge-fetal period, umzimba uyakhula begodu amalunga wawo athome ukusebenza.
Iinkhathi ezibizwa nge-embryonic ne-fetal kulelihlelo, zitjho isikhathi sokusukela kokumumatha (fertilization).
Introduction
0 - 4 Weeks
4 - 6 Weeks
6 - 8 Weeks
8 Weeks
8 - 12 Weeks
3 - 4 Months
4 - 6 Months
6 Months - Birth