What is the name of the substance secreted by the endothelium into the subendothelium that is largely responsible for platelet adhesion to the site of blood vessel damage?

Name the blood cell marked with the arrow:

EXTRA CREDIT #1 (1 pt) Veins carry blood to the heart and arteries carry blood away from the heart; therefore, arteries usually carry oxygenated blood and veins usually carry deoxygenated blood.  Which of the following are veins that carry oxygenated blood?

Plasma constitutes approximately what percentage of blood?

Which of the following is the largest lymphoid organ in the body?

Which of the following is a muscle named for its attachment sites (origin and insertion)?

What do ligaments do?

Which of the following are the first two things to happen when there’s an insult to a blood vessel (primary hemostasis)?

Which of the following are thick and thin myofilaments?

EXTRA CREDIT #4 (1 pt) Name a toxin that we discussed that causes a flaccid paralysis of muscles.