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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
Select the odd one out of the following:
FSH, LH, STH
Match the terms of column I with those of column II:
| Column I | Column II | ||
| (a) | Adenohypophysis | (i) | Thyroxine |
| (b) | Neurohypophysis | (ii) | TSH |
| (c) | Thyroid | (iii) | Oxytocin |
| (d) | Adrenaline | (iv) | Insulin |
| (e) | Islets of Langerhans | (v) | Epinephrine |
| (f) | Hypothalamus | (vi) | Growth hormone |
| (g) | Pituitary gland | (vii) | Pituitary gland |
Name the hormone responsible for the following function:
Responsible for normal growth of the whole body.
Short answer question
Where is the pituitary gland located? Enlist the hormones secreted by the anterior pituitary.
What is the outcome of hypersecretion of GH in childhood?
Which of the following statements is TRUE for testosterone?
Spermatogenesis is induced by ______.
Mention if the following statement is true (T) or false (F). If false, rewrite the correct word (not words) striking out the single wrong one.
Pituitary is of the size of a lemon.
Write the full for of ACTH.
The diagram given alongside shows an endocrine gland in the human body. Study the diagram and answer the following questions:
 |
- Identify the gland. Write its specific location in the human body.
- Label the guidelines 1, 2 and 3 shown in the figure.
- Name any two secretions from part 1 and two from part 2.
- The deficiency of which hormone causes Diabetes insipidus? How is this condition different from Diabetes mellitus with respect to the abnormal substances present in the of urine.
