Parathyroid gland, Biology

Assignment Help:

PARATHYRIOD GLANDS -

  1. They develop from the endoderm of the embryo.
  2. The parathyroid glands consist of four separate glands located on the posterior surface of the lobes of the thyroid gland.
  3. The cells of parathyroid glands are arranged in a compact mass and are of two types: small chief cells or principal cells and large oxyphil cells (or eosinophil cells).
  4. The cells are enclosed by a delicate connective tissue capsule. The chief cells are much more numerous than the oxyphil cells. The latter are absent in the young and appear a little before the age of puberty.

269_parathyroid gland.png


Related Discussions:- Parathyroid gland

What is bone modeling, Bone Modeling It is a surface-specific activity ...

Bone Modeling It is a surface-specific activity (apposition or resorption) that produces a net change in the size and/or shape of a bone after initial bone formation in the emb

Define obligatory and facultative water excretion, Define Obligatory and Fa...

Define Obligatory and Facultative water excretion? i) Obligatory water excretion: The kidney is 'obligated' to excrete some water to rid the body of its daily load of urinary s

State the uni-ocular movements, State the Uni-ocular Movements In each...

State the Uni-ocular Movements In each eye, for every movement there is an agonist, antagonist, and a synergist. An agonist is the main muscle that is active in carrying out t

Distinguish, distinguish between striated and cardic muscles

distinguish between striated and cardic muscles

What is organelles, What is Organelles? Organelles :   Eukaryotic cel...

What is Organelles? Organelles :   Eukaryotic cells contain various membrane-bound structures called organelles, in contrast to prokaryotes, which lack a definite internal or

Give three examples of reflex actions, Give three examples of reflex action...

Give three examples of reflex actions. Examples of reflex actions are alter in size of the pupil of the eye in response to light intensity, blinking in response to foreign par

Point and non-point sources, Point and Non-Point Sources The discharg...

Point and Non-Point Sources The discharge of effluents in receiving water body at a specific site are referred to a point sources in contrast to the inflow of pollutants in a

Fertilization, Fertilization is the fusion of the two gametes (sperm and o...

Fertilization is the fusion of the two gametes (sperm and ovum) to produce a zygote which develops into the new individual with a genetic heritage derived from both the parents. S

Poultry and duck diseases-marek''s disease, Marek's disease Marek's dis...

Marek's disease Marek's disease is a lymphoproliferative disease of chicken, quails, bantams and other free-flying birds. It is caused by the Gallid Herpesvirus 2 of subfamily

Define modulation of transcription of cell cycle proteins, Modulation of th...

Modulation of the transcription of cell cycle proteins? The 1,25-(OH),D  compound (calcitriol), is present in the blood complexes to the vitamin D-binding  protein, a specific

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd