Answer the following statements true (T) or false (F)
1. The wall of the stomach is unique wall because it contains two muscle layers rather than one.
2. When the stomach is empty, its lining lies in folds called chyme.
3. The body of the stomach is the enlarged portion of the stomach that is to the left and above where the esophagus opens into the stomach.
4. The pyloric sphincter regulates the movement of food from the stomach into the small intestine.
5. Plicae and villi increase the surface area of the inner wall of the small intestine.
1. FALSE
2. FALSE
3. FALSE
4. TRUE
5. TRUE
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Which of the following would achieve the absorption of water across the epithelial lining toward the blood vessels of the small intestine?A) Active transport of Na+ from the lumen to the basolateral sideB) Facilitated diffusion of glucose to the bloodstream from the lumenC) Active transport of H+ from the basolateral side to the lumenD) Tightening the tight junctions between epithelial cellsE) Opening of aquaporins on the apical membrane
What will be an ideal response?
Lymphocytes that attack foreign cells or body cells infected with viruses are ________.
A) suppressor T cells. B) B lymphocytes. C) plasma cells. D) cytotoxic T cells. E) helper T cells.
Which cranial nerves have a negative chronotropic effect on heart rate?
A) vagus nerves (CN X) B) trochlear nerves (CN IV) C) glossopharyngeal nerves (CN IX) D) hypoglossal nerves (CN XII)
At a suture, bones are tied firmly together with
A) neural tissue. B) muscle tissue. C) loose fibrous connective tissue. D) dense fibrous connective tissue. E) epithelial tissue.