Class Notes (839,561)
Canada (511,396)
Chemistry (175)
CHEM 1001 (44)

digestive tracts

2 Pages

Course Code
CHEM 1001
Amanda Helleman

This preview shows 80% of the first page. Sign up to view the full 2 pages of the document.
Control Of Digestive Secretions Nervous And Hormonal Control Of Salivary, Gastric And Pancreatic Secretions  Mammal has 2 communication systems → nervous and endocrine system  Nervous system is based on electrical impulses passing along nerve cells o Short-lasting effects, can be switched on or off rapidly o Secretes salvia when food enters mouth  Endocrine system is based on hormones o Travel in blood to target organ o Produce long-lasting effects o Trigger secretion of bile and pancreatic juice  Endocrine system is only activated with large amounts of food intake o Food takes a long time to reach small intestine o Food stays there for a long time o Digestive juice can be secreted as large amounts of food are present o Digestive juice contains trypsin and pepsin → both enzymes are peptidases which damage proteins → they would damage epithelial cells if only small amounts of food would be present Importance Of Simple And Conditioned Reflexes And The Hormones Nervous reflexes  Nerve pathway involving small number of nerve cells (2/3) → rapid response  Automatic response → particular stimulus has same effect Condition reflex
More Less
Unlock Document

Only 80% of the first page are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.