Introduction to Physiology

Question 1

What is physiology?

Answer 1

study of biological function

Question 2

What is pathophysiology?

Answer 2

how physiological processes are altered in disease or injury

Question 3

What are mammals characterized by?

Answer 3

presence of milk-producing mammary glands, a neocortex region of the brain, fur or hair, and three middle ear bones

Question 4

What class are mammals in?

Answer 4

mammalia

Question 5

What is homeostasis?

Answer 5

constancy of the internal environment

Question 6

What is temperature conformity?

Answer 6

animal’s internal environment is permitted to vary when its external environment changes

Question 7

What is temperature regulation?

Answer 7

the animal’s internal environment is held constant

Question 8

What are effectors?

Answer 8

often muscles or glands that do something to control the presence or absence of (oxygen) for example

Question 9

What can homeostasis be thought of as?

Answer 9

dynamic constancy

Question 10

What does the antagonistic effect do?

Answer 10

keeps us close to our set point

Question 11

What are intrinsic factors?

Answer 11

built into the organs being regulated

Question 12

What are extrinsic factors?

Answer 12

regulated by the nervous and endocrine systems

Question 13

What is an example of an extrinsic factor?

Answer 13

hormones

Question 14

What do hormones do?

Answer 14

travel the blood to act on specific target organs

Question 15

What is positive feedback?

Answer 15

a response mechanism that results in the amplification of an initial change (resulting in avalanche-like effects)

Question 16

What is an example of positive feedback?

Answer 16

childbirth! oxytocin, contractions…more, more, more, and then birth of mammal!