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प्रश्न
What is adenohypophysis?
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उत्तर
- It is an outgrowth from the roof of the buccal cavity. This outgrowth is called Rathke’s pouch. It grows upwards towards the brain.
- It is the larger lobe of the pituitary gland. It is a highly cellular and vascular part of the pituitary gland. It contains various types of epitheloid secretory cells, acidophils, basophils, chromatophores.
- It is further divided into three parts - Pars distalis, pars tuberalis, and pars intermedia. Pars intermedia is poorly developed in human beings.
- It is a small reduced part lying in the cleft between the anterior and posterior lobe.
- It secretes Melanocyte Stimulating Hormone (MSH) in some lower vertebrates. MSH stimulates the dispersion of melanin granules in melanocytes and is responsible for skin pigmentation.
APPEARS IN
संबंधित प्रश्न
Mention which of the statements are true (T) and which are false (F). Give reason in support of your answer.
Pituitary is popularly called the master gland
State whether the following statement is true or false. If false, rewrite changing the word.
Adrenaline is secreted by pituitary gland.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The alpha cells of the pancreas secrete insulin.
Direction: In each of the following questions a statement of assertion (A) is given and a corresponding statement of Reason (R) is given just below it. Mark the correct statement as.
- Assertion (A): The pituitary gland is referred to as the “Master gland”.
- Reason (R): It controls the functioning of other endocrine glands.
Give one example of a Tropic hormone.
Distinguish between long-day and short day plants.
Write the full for of ACTH.
Name the following:
The hormone whose undersecretion causes more urine formation.
Choose the odd one out from series and write the category of the remaining terms:
Name the following:
Six hormones secreted from anterior pituitary.
