During coagulation a circulating substance creates a meshwork to reinforce the blood clot and stabilize it. What is this substance called?
A) Fibrin
B) Platelets
C) Antibodies
D) Rh antigen
Question 2
After several cycles of lab testing on test animals, a medication can enter clinical trials for evaluation in humans. In phase one clinical trial testing:
A) the trial is expanded to include a large sample size, usually in the thousands of individuals, and establish the overall safety and effectiveness of the drug.
B) the medication is compared to other medications on the market.
C) consists of the drug being tested on a small number (usually 300 or less) of people with the illness or condition the drug is designed to treat.
D) researchers attempt to determine the safe dose and how the medication is both absorbed and eliminated from the body.
BLOOD CELLS
Lower extremity blood pressure cuff
Measuring Systolic Blood Pressure Using the Palpatory Method
Valves in veins open to permit blood flow, close to prevent backflow.
The primary factors affecting blood pressure.
How skeletal muscle activity encourages blood flow through veins