The mucosa of the colon
A. actively secretes Na+ and Cl?.
B. produces enzymes that complete lipid digestion.
C. contains many mucus-secreting goblet cells.
D. exchanges Na+ for Cl?.
E. consists of stratified columnar epithelium.
Answer: C
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Answer the following statement(s) true (T) or false (F)
1. The enteric nervous system regulates much of the digestive activity, but its action depends on the central nervous system. 2. Enamel is found in the crown of a tooth, whereas dentin is part of both the crown and the root. 3. Both chemical and mechanical digestion start in the mouth and continue in the stomach. 4. Absorption of many nutrients starts in the stomach. 5. Both pancreatic juice and bile are secreted into the duodenum. 6. The large intestine is longer than the small intestine.
Which organ system(s) is (are) particularly sensitive to pH changes?
A) endocrine and digestive systems B) reproductive and endocrine systems C) lymphatic system D) endocrine system E) nervous and cardiovascular systems
The cells that secrete fibers and matrix that create bone tissue are known as ________.
A. osteoblasts B. osteocytes C. osteons D. chondrocytes
Platelets
A. are also known as thrombocytes. B. are actually fragments of cells. C. play a role in preventing blood loss. D. can become sticky when exposed to connective tissue E. All of these choices are correct.