The diagram illustrates an absorptive structure in the duodenum. What does “A” represent? a. microvilli b. epithelial cell c. capillary d. lacteal e. villus Nutrition includes the study of a. the nutrients in foods b. the body’s utilization of nutrients c. how nutrients play a role in your body’s health d. digestion, absorption, and transportation […]
Blockage of the ileocecal valve would prevent a. pancreatic juice from entering the duodenum b. bile from entering the duodenum c. lymph from entering the jejunum d. chyme from entering the ileum e. chyme from entering the large intestine Which of the following apply to the small intestine? a. Secretions from the liver and pancreas […]
The tongue a. secretes saliva b. plays a major role in swallowing c. contains a lot of connective and lymphatic tissues d. is attached to the hard palate e. functions in deglutition apnea Which of the following represents a mismatch in stomach wall structure? a. muscularis – two layers; both circular b. rugae – folds […]
The diagram illustrates the major regulatory mechanisms of ventilation. What mechanism does “B” represent? a. Hering-Breuer reflex b. receptors for touch, temperature, pain stimuli c. medullary chemoreceptors d. carotid and aortic body chemoreceptors e. proprioceptors Which of the following is a function performed by the digestive system? a. cellular respiration b. food selection c. elimination […]