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प्रश्न
What is adenohypophysis?
थोडक्यात उत्तर
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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.
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संबंधित प्रश्न
Expand the following biological abbreviation:
LTH
The deficiency of ADH causes:
Which hormones are secreted by anterior pituitary gland?
List some of the functions of pituitary gland.
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.
The pituitary gland is divided into four lobes.
State whether true or false:
Pars distalis produces six trophic hormones.
Name the hormones secreted by adenohypophysis.
Oxytocin stimulates the contraction of ______.
Name the following:
The hormone whose undersecretion causes more urine formation.
