Coordination of digestion, Biology

Assignment Help:

Coordination of Digestion

You have learnt that digestion is a process in which large food molecules arc broken down step by step into their constituents. In primitive metazoans that are continuous feeders, the enzyme producing cells secrete continuously. In higher animals more ' precise controls are needed to regulate the release of food from stomach to intestine and also the release of digestive enzymes at the proper time. The interplay of nervous and hormonal control is beautifully illustrated when we study the coordination of digestive activity.

In the mammalian mouth, control of salivary gland secretion is entirely nervous; gastric secretions are under hormonal and neural control; and intestinal secretions are slower and are primarily under hormonal control. Gastrointestinal secretion is largely under the control of gastrointestinal hormones secreted by endocrine glands of gastric and intestinal mucosa.


Related Discussions:- Coordination of digestion

Explain general equation of the aerobic respiration, Q. What is the general...

Q. What is the general equation of the aerobic respiration (also representing phosphate and ADP)? The general  chemical equation of the aerobic respiration is: C 6 H 12 O 6

Bud dormancy - plant growth substances, Bud Dormancy - Plant Growth Substan...

Bud Dormancy - Plant Growth Substances Environmental Factors The most important factor inducing dormancy appears to be photoperiod. Short days induce dormancy in many w

Explain alterations occurring in nuts and oilseeds, Alterations occurring i...

Alterations occurring in nuts and oilseeds Some oilseeds have acquired a great significance in the large-scale industrial production of edible oils.  You have already studied t

Fishes- regeneration in vertebrates, Fishes- Regeneration in Vertebrates ...

Fishes- Regeneration in Vertebrates Several different parts of the fish body will re-grow. Plucked scales are promptly replaced by new ones and amputated gill filaments can re

Nutritional management of food allergies & food intolerance, Define Nutriti...

Define Nutritional Management of Food Allergies and Food intolerance? In this unit we will be discussing the adverse reactions associated with food. You may have read or heard

Animal physiology, what are the animals with respiratory organs?

what are the animals with respiratory organs?

How different are the respiration in fishes, How different are the respirat...

How different are the respiration in fishes and the respiration in adult amphibians? In fishes gas exchange is completed by direct contact of water with the branchiae (gills).

What is lamarckism, What is lamarckism? The Lamarckism is the theory th...

What is lamarckism? The Lamarckism is the theory that unites the law of use and disuse with the law of the transmission of acquired characteristics that is that asserted that a

What are the main events of the third mitotic period, What are the main eve...

What are the main events of the third mitotic period? The third mitotic period is anaphase. In anaphase the following events happen: duplication and breaking of centromeres wi

Synthesis of starch, Thus animals store surplus carbohydrate as glycogen; p...

Thus animals store surplus carbohydrate as glycogen; plants do so in form of starch. Starch is producing in the stroma of chloroplasts and stored there as starch grains. The Starch

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