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

Imagine an animal that hast he system similar to abo blood, Imagine an anim...

Imagine an animal that has a system similar to ABO blood types in humans. The ABO part is the same. In addition, they have a second independent gene that creates a mimic A protein,

Explain terms of osmosis, A red blood cell has an internal salt concentrati...

A red blood cell has an internal salt concentration of 150mM. The cell is placed in a beaker of 500mM salt. (a) Assuming that the cell membrane is permeable to water but not to

Goals of dietary treatment for dyslipidemia, Q. Goals of Dietary Treatment ...

Q. Goals of Dietary Treatment for dyslipidemia? The goals of dietary management (alone or conjunction with exercise or with lipid lowering drugs) are to reduce the total fat, s

Review of literature - steps of research process, Determine the purpose of ...

Determine the purpose of  the study: There must be  a sound  rationale  or justification for every research project.  If  the pui-pose of  the  study is clearly presented and just

Define why the virginia opossum is considered a generalist, Define why the ...

Define why the Virginia opossum is considered a generalist and the koala is considered a specialist. The opossum feeds on almost anything, whereas the koala feeds only on the l

Extinction, EXTINCTIO N  - It refers to disappearance of a species from...

EXTINCTIO N  - It refers to disappearance of a species from earth when its last surviving member dies. Organic evolution not only creats new sps. but also eliminates some ol

Cerebellum, why cerebellum more developed in mammals that jump or fly?

why cerebellum more developed in mammals that jump or fly?

What proportion of children with down syndrome, What proportion of children...

What proportion of children with down syndrome do you expect when women with down syndrome have children with men who have 46 chromosomes? justify answer

Explain biological function, Q. Concerning their biological function what i...

Q. Concerning their biological function what is the difference between meiosis and mitosis? The main biological function of mitosis is cellular multiplication a fundamental pro

Are coloured bodies composed of proteins and dna, Chromosomes, coloured bod...

Chromosomes, coloured bodies, are composed of proteins and DNA; so are chromatids. At metaphase I there are 46 chromosomesaligned in pairs along the human cells equatorial plate. A

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