Chapter 1: Section 1.5: Homeostasis

Question 1

Components of homeostatic system (3)

Answer 1

The receptor
The control center
The effector

Question 2

Function of receptor AND locations

Answer 2

Structure that detects changed in a variable, detect stimuli. Consist of sensory nerve nerves

Question 3

Function of control center AND locations

Answer 3

The structure that interprets input from the receptor and initiates changes through the effector. Portion of the nervous system and endocrine organ

Question 4

Function of effector AND locations

Answer 4

The structure that brings about change to alter the stimulus. Includes most body structure: muscle and glands

Question 5

Define negative feedback

Answer 5

Type of homeostatic control system that maintains the variable within a normal range. Produces a result opposite direction of stimulus. (Temperature Regulation)

Question 6

Define positive feedback

Answer 6

Type of homeostatic control that moves stimulus in the same direction and continues until a climatic event occurs. (Breatfeeding and milk production)

Question 7

Define homeostasis

Answer 7

The body’s ability to maintain a relatively stable internal environment in response to changing conditions