Thyroid gland, Biology

THYROID GLAND -

  • It develops from the endoderm of the embryo.
  • The thyroid gland is the largest endocrine gland located anterior to the thyroid cartilage of the larynx in the neck.
  • It is bilobed organ. The two lobes are connected by a narrow structure called isthmus.
  • The microscopic structure of the thyroid gland shows thyroid follicles composed of cubical epithelium and filled with a hormonous material called colloid.
  • Small amount of loose connective tissue forms stroma of the gland. Besides containing blood capillaries, the stroma contains small clusters of specialized parafollicular cells or 'c' cells.
  • The thyroid gland can store enough hormones in the form of colloid to supply the body (for about two months).

1608_parathyroid gland.png 1812_thyroid gland.png

Posted Date: 10/2/2012 6:41:50 AM | Location : United States







Related Discussions:- Thyroid gland, Assignment Help, Ask Question on Thyroid gland, Get Answer, Expert's Help, Thyroid gland Discussions

Write discussion on Thyroid gland
Your posts are moderated
Related Questions
Q. What are the Keys for Identifying plants and animals? Keys are determined as devices to help in identifying plants and animals. These are merely an aid to identification bas

CARE OF RECORDS Patient's/client's records are unquestionably a valuable documents. These should be made on paper of good quality and protected from soiling, and burning. Th

In what way do chlorofluorocarbons (CFCs) cause global problems? Chlorofluorocarbons react with and deplete the ozone in the ozone layer. This permits more ultra-violet light f

Explain Phenylephine and Methoxamine in amyl nitrite ? They have opposing effects to amyl nitrite as they increase the systemic BP. phenylephine due to its shorter duration of

Requirement and Recommended Dietary Allowance (RDA) for Vitamin A? Recommendations for adequate vitamin A intake based on the amounts needed to correct night blindness among vi

Intermediate filaments - Role of Cytoskeleton Structures These filaments are intermediate in size among microtubules and microfilaments and are 10 nm in diameter. Five classes

Q. Colony collapse disorder in honey bees? Honey bees (Apis mellifera) are social insects and live in colonies in hives. Honey bees were introduced from Europe to the USA to po


What is firing rate of carotid artery baroreceptors At 1:00 AM, person X's blood pressure is equal to the blood pressure set point.  At 1:01 AM, there is a decrease in the firi

If you look up a world atlas you would notice that most of the earth's surface is covered by the waters of the oceans (about 71%). Beneath the water surface is a fascinating world