Whether the following statements are true or false. False statements are to be corrected. a. The crown of a tooth is surrounded by an outer layer of pulp, which is the hardest substance in the body. b. The filiform papillae of the tongue are keratinized, which make them rough and able to assist in mechanical digestion. c. The three pairs of salivary glands are the parotid, submandibular, and sublingual glands. d. The exocrine cells of the pancreas and the salivary glands are islet cells. Introduction: The digestive system plays an important role in the human body. The digestive system starts with the oral cavity, where the food enters into the alimentary canal. The oral cavity resides many structures, which help in the mechanical tearing and breaking of any type of food. The salivary glands are the accessory organs that help in the movement of food in the alimentary canal.

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Answer 1

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Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 22, Problem 3CYR

Summary Introduction

To review:

Whether the following statements are true or false. False statements are to be corrected.

a. The crown of a tooth is surrounded by an outer layer of pulp, which is the hardest substance in the body.

b. The filiform papillae of the tongue are keratinized, which make them rough and able to assist in mechanical digestion.

c. The three pairs of salivary glands are the parotid, submandibular, and sublingual glands.

d. The exocrine cells of the pancreas and the salivary glands are islet cells.

Introduction:

The digestive system plays an important role in the human body. The digestive system starts with the oral cavity, where the food enters into the alimentary canal. The oral cavity resides many structures, which help in the mechanical tearing and breaking of any type of food. The salivary glands are the accessory organs that help in the movement of food in the alimentary canal.

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Match the structures to the correct descriptions. Some answers may be used more than once, and some may not be used at a Most nutrient absorption occurs here. A. submandibular This structure has 3 layers of smooth muscle rather than 2. B. pancreas Involuntary movement of this structure prevents the bolus from entering C. gall bladder the trachea. D. parotids V These are the largest salivary glands. E. large intestine V This structure receives bile and pancreatic juice. F. small intestine v During digestion, most water is absorbed here. G. liver V This structure is important in mechanical digestion. H. epiglottis V This structure produces digestive juice and enzymes that breakdown all types of maeromolecules. 1. glottis J. stomach This structure compacts the indigestible remains of digestion. V This structure produces bile. v This structure creates chyme.

The normal mechanism of defecation involves:A. Stretch receptors located in the duodenum and jejunum initiate a long-lasting reflex that relaxes the internal anal sphincter several hours after food initially passes from the stomach to the intestines.B. Stretch receptors located in the rectal wall initiate the defecation reflex inresponse to an incoming mass movement.C. The defecation reflex involves contraction of the rectal wall and simultaneous relaxation of the internal anal sphincter.D. Digestive fluids secreted from the pancreas and gall bladder contain enzymesthat act on the smooth muscle of the intestine, stimulating peristalsis.E. Conscious signals from the cortex will allow for relaxation of the external anal sphincter (when appropriate!).

Select the letter of the choice that best completes the statement. The walls of the digestive tube that contain mucus are calleda. submucosa.b. mucosa.c. circular muscle.d. visceral peritoneum.

Answer 2

Question

Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 22, Problem 3CYR

Summary Introduction

To review:

Whether the following statements are true or false. False statements are to be corrected.

a. The crown of a tooth is surrounded by an outer layer of pulp, which is the hardest substance in the body.

b. The filiform papillae of the tongue are keratinized, which make them rough and able to assist in mechanical digestion.

c. The three pairs of salivary glands are the parotid, submandibular, and sublingual glands.

d. The exocrine cells of the pancreas and the salivary glands are islet cells.

Introduction:

The digestive system plays an important role in the human body. The digestive system starts with the oral cavity, where the food enters into the alimentary canal. The oral cavity resides many structures, which help in the mechanical tearing and breaking of any type of food. The salivary glands are the accessory organs that help in the movement of food in the alimentary canal.

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Answer 3

Question

Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 22, Problem 3CYR

Summary Introduction

To review:

Whether the following statements are true or false. False statements are to be corrected.

a. The crown of a tooth is surrounded by an outer layer of pulp, which is the hardest substance in the body.

b. The filiform papillae of the tongue are keratinized, which make them rough and able to assist in mechanical digestion.

c. The three pairs of salivary glands are the parotid, submandibular, and sublingual glands.

d. The exocrine cells of the pancreas and the salivary glands are islet cells.

Introduction:

The digestive system plays an important role in the human body. The digestive system starts with the oral cavity, where the food enters into the alimentary canal. The oral cavity resides many structures, which help in the mechanical tearing and breaking of any type of food. The salivary glands are the accessory organs that help in the movement of food in the alimentary canal.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 22, Problem 3CYR

Summary Introduction