B2 Keeping Healthy part 2
- Created by: 1i22y
- Created on: 27-01-16 20:30
Other questions in this quiz
2. what does the lumen do
- ensure it is smooth to allow efficient blood flow
- ensure that there is thick outer walls to protect them from bursting due to high pressure
- contract and increase blood pressure
- recoil, which allows normal conditions to return after contraction
3. what is homeostasis
- keeping an non constant internal/external environment
- keeping a constant internal environment
- keeping a constant external environment
4. the left lower chamber pumps blood to the
- lungs
- rest of your body
- heart
5. what happens in most human trials
- humans are raced on an Olympic course
- one group takes new drug. the controls (another group) takes a placebo or an existing drug for that illness
- a group of people take a new drug
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