Embryology and Anatomy of Development

📋 Course Outline

1. Embryonic development and fertilization
2. Placentation and placental barriers
3. Thoracic cavity and mediastinum
4. Pharyngeal arches and tongue development
5. Salivary glands and oral anatomy
6. Horse teeth and temporomandibular joint
7. Larynx and vocal cavity
8. Pancreas and fetal vasculature
9. Urogenital anatomy and bird respiration
10. Eye anatomy and visual structures
11. Ear anatomy and hearing
12. Spinal cord and cranial nerves

📖 1. Embryonic development and fertilization

🔑 Key Concepts & Definitions

• Embryonic development : Embryonic development is the series of processes where a fertilized egg forms an embryo, then a fetus capable of adapting to postnatal life.
• Embryonic period : The embryonic period is the phase during which the major organ systems are established.
• Fertilization site : The fertilization site is the location where sperm contact the oocyte, mainly the ampullary region of the oviduct.
• Zona pellucida : The zona pellucida is the oocyte covering the fertilizing sperm must interact with during the first steps of fertilization.
• Polyspermy block : The polyspermy block is the cortical response after gamete fusion that prevents further sperm from entering the oocyte.

📝 Essential Points