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

Objectives of diabetes counselling, Objectives of Diabetes Counselling    ...

Objectives of Diabetes Counselling      1.  Facilitating decision to start treatment and change life style 2.  Providing psychological, social and emotional support for a.

What is the significance of pronephric, What is the significance of Proneph...

What is the significance of Pronephric? The first, or ancestral, kidney that appears in the anterior part of the coelomic cavity and is connected to the archinephric duct. In a

Define difference between plant systematic and taxonomy, Define Difference ...

Define Difference between Plant Systematic and Taxonomy? Before coming to principles of taxonomy let us discuss the difference between taxonomy and systematic. Systematic is th

Microorganisms, what are the disadvantages of protozoa?

what are the disadvantages of protozoa?

Ancestral unicellular organism, Ancestral Unicellular Organism So far ...

Ancestral Unicellular Organism So far in this unit we have considered the characteristic of body designs that are shared by various animals and the different body plans that d

Dietary management for ulcerative colitis, Q. Dietary Management for ulcera...

Q. Dietary Management for ulcerative colitis? Proper dietary management is important for maintaining a good nutritional status of the patient. Long-term management is generally

Differences between axon and dendrite, DIFFERENCE S BETWEEN AXON AND DENDR...

DIFFERENCE S BETWEEN AXON AND DENDRITE (DENDRON)     AXON   DENDRIT E (DENDRON) 1. It is single per neur

The nutrient composition of the diet, The nutrient composition of the diet ...

The nutrient composition of the diet The nutrient composition of the diet will depend upon the type(s) and amount(s) of liquids the patient can consume.  The diet is low  in  i

State in brief about posterior maxilla, Posterior Maxilla Posterior max...

Posterior Maxilla Posterior maxilla has very poor quality of bone demanding special consideration in implant placement:  Increasing the number of implants to decrease the cr

What is the function of the feet in molluscs, Q. What is the function of th...

Q. What is the function of the feet in molluscs? How is the mollusc foot related to the name given to the classes of the phylum? The mollusc foot has the function of support, l

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