Skip Navigation
Improving lifelong health one pregnancy at a time.
English
Español
Português
Educator Login / Register
Donate Now
Get Free Videos
Your Life Before Birth Video
Free Mobile Apps
Get Free EHD Videos
When Health Begins
The Virtual Human Embryo
Prenatal Development DVD
Image Gallery
Movie Theater
DVD Documentation Center
Multilingual Illustrated DVD
Educator's Corner
Classic Works
Prenatal Summary
Prenatal Timeline
Prenatal Overview
EHD Store
About EHD
Recommended Reading
Support EHD
Add a Comment
Sections
Home
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
出生前發育生物學
.
中文 (繁體)
[Mandarin (Traditional)]
This program is distributed in the U.S. and Canada by National Geographic and EHD.
[
learn more
]
[
hide
]
To purchase online:
visit
EHD's Online Store
To purchase online:
visit
EHD's Online Store
Choose Language:
88 languages available
Afrikaans
Albanian (Tosk) [Shqip]
Arabic [عربي]
Armenian [Հայերեն]
Assamese [অস]
Azerbaijani North [Azərbaycan Dilində]
Belarusian [Беларуская мова]
Bengali [বাং]
Bosnian [Bosanski]
Bulgarian [Български]
Catalan [Català]
Creole (Haitian) [Kreyòl Ayisyen]
Croatian [Hrvatski]
Czech [Česky]
Danish [Dansk]
Dutch [Nederlands]
English
Estonian [Eesti]
Finnish [Suomi]
French [Français]
Ganda [Luganda]
Georgian [საქართველო]
German [Deutsch]
Greek [Ελληνικά]
Gujarati [ગુજરા]
Hausa
Hebrew [עברית]
Hindi [हिन्दी]
Hungarian [magyar]
Igbo
Indonesian [BAHASA INDONESIA]
Italian [Italiano]
Japanese [日本語]
Javanese [Basa Jawa]
Kannada [ಕನ್ನಡ]
Kashmiri [کشمیری]
Kazakh [Қазақ]
Kinyarwanda
Kirundi (Rundi) [Kirundi]
Korean [한국어]
Krio
Kurmanji [Kurmancî]
Kyrgyz [Кыргыз]
Latvian [Latviski]
Lithuanian [Lietuvių kalba]
Macedonian [Македонски]
Malagasy
Malay [Bahasa Melayu]
Malayalam [മലയാളം]
Mandarin (Simplified) [中文(简体)]
Mandarin (Traditional) [中文 (繁體)]
Marathi [मराठ]
Mongolian (Khalkha) [Монгол]
Nepali [नेप]
Norwegian [Norsk]
Pashtu (Pushto) [پښتو]
Persian [فارسی]
Polish [Polski]
Portuguese [Português]
Punjabi, Eastern [ਪੰਜਾਬੀ]
Punjabi, Western [پاکستانی پنجابی]
Romanian [Română]
Russian [Русский]
Serbian [СРПСКИ]
Shona
Sindebele (Ndebele) [Ndebele]
Sindhi [سندھی]
Slovak [Slovenčina]
Slovenian [Slovenščina]
Somali
Sorani [كوردی]
Spanish [Español]
Swahili
Swati (siSwati) [Siswati]
Swedish [Svenska]
Tagalog
Tajik [Тожик]
Tamil [தமி]
Telugu [తెల]
Thai [ไทย]
Turkish [Türkçe]
Turkmen [Türkmençe]
Ukrainian [Українська]
Urdu [اردو]
Uzbek [Ўзбек]
Vietnamese [tiếng Việt]
Yoruba
Zulu [isiZulu]
Download English PDF
Download Spanish PDF
Download French PDF
What is PDF?
Hide Table of Contents
Show Table of Contents
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 41
4 to 5 Months (16 to 20 Weeks): Stress Response, Vernix Caseosa, Circadian Rhythms
See Snapshots
See Snapshots
到16週,把針插入 胎兒腹部, 該程序引起 荷爾蒙 逼迫反應, 向血流中釋放 去甲腎上腺素 或降腎上腺素。
See Snapshots
在呼吸系統, 支氣管樹現在 幾乎完整。
See Snapshots
一種叫做胎兒皮脂的 保護性白色物質 現在覆蓋著胎兒。 胎兒皮脂保護皮膚 不受羊水的 刺激影響。
See Snapshots
從19週起,胎兒運動、 呼吸活動 和心搏率以一日為周期, 叫做晝夜節律。
Chapter 42
5 to 6 Months (20 to 24 Weeks): Responds to Sound; Hair and Skin; Age of Viability
See Snapshots
到20週,在完全 發育的內耳裏, 聽覺器官耳蝸 已經達到成年人 的尺寸。 從現在開始, 胎兒對各種 聲音作出反應。
See Snapshots
頭皮上開始生長頭髮。
所有皮膚層和結構出現, 包括毛囊和腺。
See Snapshots
到受精後的21至22週 肺臟獲得一些 呼吸空氣的能力。 這被視為 生存能力時期 因為一些胎兒可能 在子宮外生存。
Introduction
0 - 4 Weeks
4 - 6 Weeks
6 - 8 Weeks
8 Weeks
8 - 12 Weeks
3 - 4 Months
4 - 6 Months
6 Months - Birth
Add a comment
Add a Comment
Your Name:
Log In
3rd-party login:
Comment: