Ch 29 - Physiology, Homeostasis, and Thermoregulation

Question 1

extracellular fluid found between the cells of the body

Answer 1

interstitial fluid

Question 2

maintaining relatively stable internal conditions

Answer 2

homeostasis

Question 3

list the components of body organization (from small to large)

Answer 3

cell > tissue > organ > organ system

Question 4

tissue type that covers and lines body serfaces

Answer 4

epithelial

Question 5

tissue composed of cells embedded in an extracellular matrix

Answer 5

connective

Question 6

tissue that consists of cells that can generate and conduct electrical signals

Answer 6

nervous

Question 7

tissue made of cells that contract to generate forces that result in movement

Answer 7

muscle

Question 8

desired or “normal” level within a regulatory system

Answer 8

set point

Question 9

in a regulatory system, information about the current state as compared to the set point

Answer 9

feedback information

Question 10

difference between the set point and the feedback information in a regulatory system

Answer 10

error signal

Question 11

provides the feedback information

Answer 11

sensor

Question 12

carries out the response to the error signal

Answer 12

effector

Question 13

counteracts or corrects the error signal

Answer 13

negative feedback

Question 14

amplifies a response to the error signal

Answer 14

positive feedback

Question 15

information that changes the set point in a regulatory system

Answer 15

feedforward information

Question 16

animal that can control its body temperature by the expenditure of its own metabolic energy

Answer 16

endotherm

Question 17

animal that is dependent on outside heat sources for regulating its body temperature

Answer 17

ectotherm

Question 18

“thermostat” at the bottom of the brain in vertebrates

Answer 18

hypothalmus