Answer the following statements true (T) or false (F)
1. The pharyngeal-esophageal phase of swallowing is involuntary and is controlled by the swallowing center in the thalamus and lower pons.
2. All the chemical and mechanical phases of digestion from the mouth through the small intestine are directed toward changing food into forms that can pass through the epithelial cells lining the mucosa into the underlying blood and lymphatic vessels.
3. Pepsinogen is the precursor to the gastric enzyme for protein digestion and is secreted by the parietal cells.
4. The main chemical activity of the stomach is to begin the digestion of proteins.
5. The major role of absorption in the ileum is to reclaim bile salts to be recycled back to the liver
1. FALSE
2. TRUE
3. FALSE
4. TRUE
5. TRUE
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A. Frontal sinus B. Anterior sinus C. Ethmoidal sinus D. Maxillary sinus E. Sphenoidal sinus
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Indicate whether the statement is true or false
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A. Thoracic B. Sacral C. Lumbar D. Coccyx
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