Unit 1

Question 1

What is the best definition of physiology?

Answer 1

the science of the function of living things

Question 2

What is the how and why of the body?

Answer 2

“how” is the process and “why” is the function

Question 3

What is homeostasis?

Answer 3

the maintenance of a relatively stable internal environment - an oscillation around a set point

Question 4

What is the difference between homo and homeo? Who came up with this in terms of homeostasis?

Answer 4

Homeo means similar, though not the same

Walter Cannon came up with this idea

Question 5

What is the definition of endocrine control?

Answer 5

a cell to cell communication over long range distances through the use of a chemical (hormone) that is released into the bloodstream and distributed throughout the body

Question 6

How do neural controls work in cell to cell communication?

Answer 6

electrical signals travel down neutrons until it reaches the end point and it is translated to an electrical signal (a neurotransmitter) which transmits the information to the next cell

Question 7

How does a neuro endocrine signal work in cell to cell communication?

Answer 7

electrical signals travel down a neutron until it reaches the end and is translated to a chemical signal tat is secreted into the blood

Question 8

What is the difference between an agonist and an antagonist?

Answer 8

Agonist is a molecule that is similar in structure and activates the pathway in a similar manner to the ligand. An antagonist is a molecule similar enough in structure to bind to the same receptor, but noes not activate it