Lecture 2 Homeostasis

Question 1

External perturbation

Answer 1

Changes in environment - weather is an example

Question 2

Internal perturbation

Answer 2

Body changes such as blood level

Question 3

Homeostasis is what nervous system?

Answer 3

Autonomic nervous system (we don’t have to think about regulation blood glucose levels

Question 4

1st Part of Homeostasis (VDCE)

Answer 4

1= variable (change in variable)

Question 5

2nd Part of Homeostasis (VDCE)

Answer 5

2. Detector or receptor detects change in variable from set point

Question 6

3rd Part of Homeostasis (VDCE)

Answer 6

3= control centre figures out what to do when stimulus is detected

Question 7

Movement away from set point

Answer 7

Stimulus

Question 8

Effector

Answer 8

Terminates feedback loop by shifting variable back to set paint

Question 9

Oxygen homeostasis (why cells die from lack of oxygen)

Answer 9

1. Lungs cannot get enough from air
2. Heart cannot move enough blood around
3. Blood vessels are too blocked up

Question 10

Type 1 diabetes

Answer 10

Body doesn’t make insulin

Question 11

Type 2 diabetes

Answer 11

Adipocytes don’t listen