Cruising along
This is the term for a cell, gland, or organ that carries out a response.
Effector
When it is cold, this "tightening" of blood vessels helps prevent heat loss.
Vasoconstriction
This type of feedback loop works to counteract a change.
Negative Feedback
According to Table 2.2, a temperature of 35.5°C is classified as this.
Low Body Temperature
This hormone is released by the pancreas immediately after a meal to lower blood sugar levels.
Insulin
This is the "ideal" level or specific requirement for a body condition.
Base-line
These specialized nerve cells detect changes in the environment.
Sensores or Receptors
This type of feedback loop amplifies a stimulus instead of stopping it.
Positve Feedback
Any temperature below this number (°C) is considered Hypothermia. Give the answer to an acucracy of 1 decimal place.
35.0 degree celsius
When blood sugar is too low, the pancreas releases this hormone to signal the liver to release stored energy.
Glucagon
The process of maintaining a stable internal environment despite external changes.
Homeostasis
When you shiver, these are the Effectors that are being triggered.
muscles
This specific life event is the primary example of a positive feedback loop.
Child Birth
This is the temperature range (in °C) for a "normal/baseline" human.
36.1 to 37.0 degree celsius
This is the specific "G-word" name for the molecule that stores extra energy in the liver for later use.
Glycogen
The specific pH where most body processes work best. Provide the answer to an accuracy of 1 decimal place. (hint: it is slightly alkaline)
7.35 to 7.45
Besides shivering, the body produces these "bumps" to trap heat when cold.
Goose Bumps
In a feedback loop, this is the name for the initial change that triggers a response.
Stimulus
If a student has a fever of 39.7°C, Table 2.2 classifies it as this level.
High Fever
In the negative feedback loop for blood sugar, this organ acts as both the sensor and the control centre.
Pancreas
Name one baseline the body maintains other than temperature or sugar.
pH levels, Water/Hydration, or Carbon Dioxide levels.
Explain why your face turns red (vasodilation) when you are too hot.
Vasodilation brings hot blood to the surface so heat can be lost to the air.
Why must a Positive Feedback loop have an "interruptor" or end event?
Because it is an amplifying process; without an end (like a baby being born), the body would stay in an escalating, unstable state.
Why is a "High Fever" (>39.5°C) dangerous for your body's enzymes?
Causes Enzymes to denature and change shape so they do not work as intended.
Explain the specific role of the Effector in the blood glucose feedback loop when a person has skipped breakfast.
What is the Liver releasing glucose back into the bloodstream?