What are the stages of development of the embryonic brain?
| Stages of Embryonic Development (Table 14.1) | ||
|---|---|---|
| Neural tube | Primary vesicle stage | Adult structures |
| Anterior neural tube | Prosencephalon | Diencephalon |
| Anterior neural tube | Mesencephalon | Midbrain |
| Anterior neural tube | Rhombencephalon | Pons cerebellum |
What is the first organ to develop in the chick embryo?
The heart
The heart is the first functioning organ in the developing embryo and a detailed understanding of the molecular and cellular mechanisms involved in its formation provides insights into congenital malformations affecting its function and therefore the survival of the organism.
What are the stages of egg development?
The egg develops into a blastocyst, an embryo, then a fetus.
How many stages are in a chicken life cycle?
On average, a chicken will live between three to five years (some breeds are known to live longer), and have three distinct life phases: egg, chick and chicken stage.
What is the middle stage in the life cycle of a chicken?
Life cycle – the stages of life of an animal; the stages of a chicken’s life cycle are egg, chick, and adult. Hatches – breaks out of an egg. Beak – hard covering of a bird’s mouth.
Which is the source of food in developing embryo of chick?
The yolk is the source of food for the embryo and contains all the fat in the egg. The small white spot on the yolk is called the germinal disc.
What is the first stage of brain development?
The first key event of brain development is the formation of the neural tube. About two weeks after conception, the neural plate, a layer of specialized cells in the embryo, begins to slowly fold over onto itself, eventually forming a tube-shaped structure.