The __________________ __________________ within the medulla acts as a countercurrent exchanger.
Fill in the blank(s) with the appropriate word(s).
vasa recta
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Answer the following statements true (T) or false (F)
1. Epithelial tissue membranes are made up of only epithelial tissue. 2. Connective tissue membranes are made up of only connective tissue. 3. The basement membrane portion of an epithelial tissue membrane is made of connective tissue. 4. A serous membrane covering the wall of the chest cavity is called the visceral pleura. 5. A serous membrane covering the organs of the abdominal cavity is called the visceral peritoneum.
At the arteriolar end of a capillary, fluid moves ________.
A. from the interstitial fluid into the capillary by filtration B. out of the capillary into the interstitial fluid by osmosis C. out of the capillary into the interstitial fluid by filtration D. from the interstitial fluid into the capillary by osmosis
The following is a list of vessels and structures that are associated with the heart. What is the correct order for the flow of blood entering from the systemic circulation? 1. right atrium 2. left atrium 3. right ventricle 4. left ventricle 5. venae cavae 6. aorta 7. pulmonary trunk 8. pulmonary veins
A) 1, 2, 7, 8, 3, 4, 6, 5 B) 1, 7, 3, 8, 2, 4, 6, 5 C) 5, 1, 3, 7, 8, 2, 4, 6 D) 5, 3, 1, 7, 8, 4, 2, 6 E) 5, 1, 3, 8, 7, 2, 4, 6
Within a muscle fiber the contractile elements may constitute as much as ______ of the cell volume
a. 50% b. 60% c. 70% d. 80% e. 90%