If you injected a protein into the interstitial fluid of the leg, without breaking any capillary walls, what path would this protein take to enter the general circulatory system?
What will be an ideal response?
Answer: The protein would not be able to cross most capillary walls, as the clefts in the endothelium of most capillaries are too small for proteins. However, lymphatic capillaries have very large clefts, so the protein would enter lymphatic capillaries, and proceed through lymphatic vessels and lymph nodes to the subclavian vein, and then into the general circulatory system.
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A 56-year-old male has an incomplete avulsion to his right forearm. After controlling any bleeding from the wound, you should:
A. carefully probe the wound to determine if the bleeding is venous or arterial. B. carefully remove the avulsed flap and wrap it in a moist, sterile trauma dressing. C. replace the avulsed flap to its original position and cover it with a sterile dressing. D. thoroughly irrigate the wound with sterile water and cover it with a sterile dressing.
The bicuspid valve is situated between the left atrium and left ventricle.
Answer the following statement true (T) or false (F)
Large lymphatic vessels have a wall structure most similar to which blood vessel?
A) veins B) venules C) capillaries D) arterioles E) arteries
Any substance that increases bile secretion is called a choleretic
a. True b. False Indicate whether the statement is true or false