Chick Embryo Development: Claws, Feather Follicles and Eyelids (Part 3)
Explore “Claws, Feather Follicles and Eyelids” in this Chick Embryo Development lesson. Part 3 of the five-part series brings together the source material and lesson topics. Use the contents links to find a section, read the notes, and consult the complete original teaching slides below.
Lesson topics
- The vitelline membrane covers almost the whole yolk.
- Appearance of claws.
- The nostrils are present as narrow apertures.
- The palpebral aperture has an elliptic shape that tends to become thinner.
Contents
- Read the original document
- The vitelline membrane covers almost the whole yolk.
- Appearance of claws.
- The nostrils are present as narrow apertures.
- The palpebral aperture has an elliptic shape that tends to become thinner.
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Read the original source document
Chick Embryo Development – Fertilized and Unfertilized Eggs: original teaching slides for this study series.
The vitelline membrane covers almost the whole yolk.
The vitelline membrane covers almost the whole yolk. Eye pigmentation is readily visible. The beak’s upper and lower parts are differentiated, as well as the wings and legs. The neck stretches and the brain is completely settled in its cavity. Opening of the external auditory canal. GURRAM SRINIVAS
Appearance of claws.
Appearance of claws. Budding of the first feather follicles. Growth of the allantois and increased vascularization of the vitellus. GURRAM SRINIVAS
The nostrils are present as narrow apertures.
The nostrils are present as narrow apertures. Growth of eyelids. Extension of the distal portion of the limbs. The vitelline membrane completely surrounds the yolk. Feather follicles now cover the inferior part of the limbs. Appearance of the egg-tooth. GURRAM SRINIVAS
The palpebral aperture has an elliptic shape that tends to become thinner.
The palpebral aperture has an elliptic shape that tends to become thinner. The allantois reaches its maximum size while the vitellus begins to shrink. The embryo now has the aspect of a chick. GURRAM SRINIVAS
Review questions and answers
What are the key points about The vitelline membrane covers almost the whole yolk.?
The vitelline membrane covers almost the whole yolk. Eye pigmentation is readily visible. The beak’s upper and lower parts are differentiated, as well as the wings and legs. The neck stretches and the brain is completely settled in its cavity. Opening of the external auditory canal. GURRAM SRINIVAS
What are the key points about Appearance of claws.?
Appearance of claws. Budding of the first feather follicles. Growth of the allantois and increased vascularization of the vitellus. GURRAM SRINIVAS
What are the key points about The nostrils are present as narrow apertures.?
The nostrils are present as narrow apertures. Growth of eyelids. Extension of the distal portion of the limbs. The vitelline membrane completely surrounds the yolk. Feather follicles now cover the inferior part of the limbs. Appearance of the egg-tooth. GURRAM SRINIVAS
What are the key points about The palpebral aperture has an elliptic shape that tends to become thinner.?
The palpebral aperture has an elliptic shape that tends to become thinner. The allantois reaches its maximum size while the vitellus begins to shrink. The embryo now has the aspect of a chick. GURRAM SRINIVAS
More lessons from this document
- Chick Embryo Development – Fertilized and Unfertilized Eggs — Part 1
- Chick Embryo Development – Fertilized and Unfertilized Eggs — Part 2
- Chick Embryo Development – Fertilized and Unfertilized Eggs — Part 3
- Chick Embryo Development – Fertilized and Unfertilized Eggs — Part 4
- Chick Embryo Development – Fertilized and Unfertilized Eggs — Part 5
Conclusion
The important points in The vitelline membrane covers almost the whole yolk. should be reviewed alongside the definitions, examples and comparisons given above. Continue with the other four articles to cover the rest of the source material.