Question

what is the origin of thymus gland.​

Answer 1

According to the classical view, the thymus derives from the endoderm of the 3rd pharyngeal pouch on both sides. The 3rd pharyngeal pouch gives origin ventrally to the thymus and dorsally to the 3rd parathyroid gland, whereas the 4th pharyngeal pouch gives origin to the 4th parathyroid and the ultimo- branchial body.

Answer 2

Answer:

Thymus Gland

Explanation:

The thymus derives from the endoderm of the 3rd pharyngeal pouch on both sides. The 3rd pharyngeal pouch gives origin ventrally to the thymus and dorsally to the 3rd parathyroid gland, whereas the 4th pharyngeal pouch gives origin to the 4th parathyroid and the ultimo- branchial body.

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