What distinguishes the neurohypophysis from the adenohypophysis?
Understand the Problem
The question is asking for the differences between the neurohypophysis and the adenohypophysis, specifically which of the given options correctly distinguishes the two parts of the pituitary gland.
Answer
Neurohypophysis is derived from neural tissue; adenohypophysis from oral ectoderm.
The neurohypophysis is the posterior pituitary gland derived from neural ectoderm, lacks hormone-producing cells, and functions mainly in storing and releasing hormones. The adenohypophysis is the anterior pituitary, derived from oral ectoderm, and contains various hormone-producing cells.
Answer for screen readers
The neurohypophysis is the posterior pituitary gland derived from neural ectoderm, lacks hormone-producing cells, and functions mainly in storing and releasing hormones. The adenohypophysis is the anterior pituitary, derived from oral ectoderm, and contains various hormone-producing cells.
More Information
An interesting fact is that the neurohypophysis is more involved with the hypothalamus as its axons extend into it, unlike the adenohypophysis, which functions independently to secrete hormones.
Tips
A common mistake is confusing the hormone-producing capabilities: adenohypophysis produces and secretes hormones, while neurohypophysis only stores and releases them.
Sources
- Pituitary Gland Anatomy - Medscape Reference - emedicine.medscape.com
- The Pituitary Gland and Hypothalamus | Anatomy and Physiology II - courses.lumenlearning.com
- Neurohypophysis - an overview | ScienceDirect Topics - sciencedirect.com
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