Mod 1: Orientation of the human body

Question 1

The state of dynamic equilibrium of the internal environment of the body is called what?

Answer 1

Homeostasis

Question 2

When the effector opposes the stimulus (such as a dropping temperature) and reverses the direction of change (causing the temperature to rise) is called

Answer 2

Negative feedback

*Most system supporting homeostasis operate by negative feedback

Question 3

When the effector reinforces the stimulus & amplifies the direction of change is called what

Answer 3

Positive feedback
*ex. Uterine contractions during childbirth, which triggers the release of the hormone oxytocin - Even greater contractions and further release of oxytocin

Question 4

What detects change in homeostatic regulation?

Answer 4

Receptor

Question 5

An area of the body that receives and processes information from the receptor is called

Answer 5

Control center

Question 6

Sends signals (feedback) that either oppose or enhance the stimulus in homeostatic regulation

Answer 6

Effector

Question 7

True or false - All 11 body systems work together

Answer 7

True