Integumentary system - various glands, Biology

Assignment Help:

OTHER GLANDS -

(i) Mammary glands -

  1. Study of mammary gland is mastology. Modified sweat gland.
  2. 4-5 pairs in rabbit. 1 pair in human. In opposum 25 pairs (max.). Teats or nipples present.
  3. Teats absent in prototheria or monotremes. Gynecomestea condition present in prototheria.
  4. Lecticiferous tubules open on teats.
  5. In buffalo, cow, horse, mammary glands before open into teats first open in cisterni (cavity).
  6. In dog, goat, buffalo, pig mammary glands present in abdomen.
  7. These are compound alveolar tubular duct (active) or compound tubular (inactive).
  8. Apocrine in nature. It's activity & growth is under control of pituitary.
  9. By lectogenesis milk is synthesized under control of prolectin.
  10. Early milk is rich in minerals known as colustrum. Secretion of milk is under control of oxytocin.

(ii) Meibomian gland or meikomian gland or cilliary gland of moll or tarsal gland -

Present at corner of eye lids. Modified sebaceous gland. Their fatty secretion clears eye ball.

(iii) Ceruminuous gland or wax gland -

Present in external auditory meatus. Modified sweat gland.

It's secretion is wax or cerumen to protect ear drum.

(iv) Perineal gland or scent gland or inguinal gland -

Green in colour. Modified sweat gland. Situated in perineum. Their secretion attaracts opposite sex.

The smell is helpful to trace other groups in rabbit. Absent in human beings.

(v) Gland of zeis -

Modified sebaceus gland. Situated attached to eye lid. It's secretion clear eye ball.

Sty or hardoleum is due to its infection.

(vi) Tyson's gland -

Present in prepuce. Modified sweat gland. It's oily secretion is helpfull in copulation.

(vii) Gland of montgomery -

Modified sweat gland. Present in areola mammary. Its secretion softens the nipple.

Note :- Skin's glands absent in porpyaz (aquatic mammals).


Related Discussions:- Integumentary system - various glands

How do we treat protein energy malnutrition?, How do we Treat Protein Energ...

How do we Treat Protein Energy Malnutrition? Major objective of the treatment of PEM is to provide adequate energy and protein intake and control infections, if any. Mild and m

Define about the zinc deficiency, Define about the Zinc Deficiency? Evi...

Define about the Zinc Deficiency? Evidence suggests that nearly one-third of preschool children in lower-income countries have stunted growth, and that a considerable proportio

Explain fontan operation, Explain Fontan Operation ? The original Font...

Explain Fontan Operation ? The original Fontan operation was done in a case where classical Glenn operation had been done (end-Lo-end anastomosis of superior vena cava and lig

Phylum annilida, how we attempt a question of phylum annilida in exam?

how we attempt a question of phylum annilida in exam?

How to increase the levels of physical activity, How to increase the levels...

How to increase the levels of physical activity? The benefits of physical fitness should be spread among the public through mass media. 1. Physical activity should be encour

How many atp molecules are made after glycolysis, How many ATP molecules ar...

How many ATP molecules are made after glycolysis? Glycolysis is a process same to glucose degradation in fermentation. It forms (final balance) two molecules of ATP for each br

What are the major components of the cytoskeleton, Q. What are the major co...

Q. What are the major components of the cytoskeleton? The cytoskeleton is a network of very small filaments and tubules distributed throughout the cytoplasm of eukaryotic cells

Provide the definition of health care, Provide the Definition of Health Car...

Provide the Definition of Health Care? Health care involves much more than just medical care and can be defined as "multitude of services provided to individuals or communities

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