NEET  >  Biology Class 11  >  Glands

Glands Notes | Study Biology Class 11 - NEET

Document Description: Glands for NEET 2022 is part of Biology Class 11 preparation. The notes and questions for Glands have been prepared according to the NEET exam syllabus. Information about Glands covers topics like and Glands Example, for NEET 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Glands.

Introduction of Glands in English is available as part of our Biology Class 11 for NEET & Glands in Hindi for Biology Class 11 course. Download more important topics related with notes, lectures and mock test series for NEET Exam by signing up for free. NEET: Glands Notes | Study Biology Class 11 - NEET
1 Crore+ students have signed up on EduRev. Have you?

GLANDS OF EPITHELIUM 

–    A cell or group of cells which secrete chemical substances are called glands.

–    All glands are composed of Epithelium tissue.

–    Glands originate from all three germinal layers.

–    The cells are generally columnar or cuboidal.

TYPES OF GLANDS

Fig.: Glandular epithelium : (a) Unicellular (b) Multicellular

(C) On the basis of presence of secretory duct glands are of 3 types 

(a)  Endocrine glands  – Secretory duct absent

Endocrine GlandsEndocrine Glands

(b)  Exocrine gland –  Secretory duct present.         

(c)  Heterocrine/mixed gland – Both endocrine & exocrine parts are present.

(D) On the basis of nature of secretion – 3 types of glands are there. 

Eccrine/Apocrine/Merocrine gland 

In these glands secretory cells secrete substances by simple diffusion (Exocytosis). No part of cytoplasm is destroyed in secretion.

Maximum sweat glands of humans, Paws of rabbit, Goblet cells, Salivary gland,Tear gland, Intestinal gland, Mucous gland.

Apocrine gland 

In this type of glands secretory products are collected in apical part of secretory cell. Apical portion is also shed along with secretory matter.

Secretory cells gain their lost part of cytoplasm by process of regeneration.

–   Mammary glands.

Sweat gland of Arm pit, pubic region, skin around anus, lips, nipples etc.

Largest sweat gland of body are found around nipples. – Areola mamme.

In Rabbit seat glands  of this type are found on lips and skin around lips.

Holocrine glands –

The production or secretion is shed with whole cell leading to its destruction. i.e

Example : Sebaceous, meibomian & Zeis gland.

The document Glands Notes | Study Biology Class 11 - NEET is a part of the NEET Course Biology Class 11.
All you need of NEET at this link: NEET
299 videos|448 docs|347 tests
Download as PDF

How to Prepare for NEET

Read our guide to prepare for NEET which is created by Toppers & the best Teachers

Download free EduRev App

Track your progress, build streaks, highlight & save important lessons and more!

Related Searches

Semester Notes

,

Viva Questions

,

Extra Questions

,

past year papers

,

Glands Notes | Study Biology Class 11 - NEET

,

ppt

,

pdf

,

Free

,

mock tests for examination

,

Exam

,

Glands Notes | Study Biology Class 11 - NEET

,

study material

,

MCQs

,

Important questions

,

practice quizzes

,

Objective type Questions

,

Summary

,

video lectures

,

shortcuts and tricks

,

Glands Notes | Study Biology Class 11 - NEET

,

Sample Paper

,

Previous Year Questions with Solutions

;