CH 13 Flashcards
The Digestive System
What organs or structures are a part of the digestive system?
- Esophagus
- Stomach
- Teeth
What is produced in the stomach?
- Chief cells produce pepsinogen
- Hydrochloric acid is produced by parietal cells
- Intrinsic factor is produced so that vitamin B12 can be absorbed
What group of vitamins include vitamins of the B complex and vitamin C?
Water-soluble vitamins
What is the digestive anatomy of the oral cavity?
- There are 28 teeth in a full set of permanent teeth
- A tooth fits into an alveolus
- Salivary ducts empty into the oral cavity
Chewing is an example of __________ digestion
mechanical
Which sphincter controls the opening from the esophagus to the stomach?
Cardiac
Which muscles move the jaw in a crushing motion during mastication?
Temporalis
Which salivary glands are located anterior to the ears?
Parotid glands
What chemical in saliva partially breaks down carbohydrates during the process of mastication?
Amylase
What feature inside the stomach allows for more surface area?
Gastric rugae
What is chyme?
- Liquefied contents of the stomach
- Mixture of bolus with gastric juices
- Partially digested carbohydrates, lipids, and proteins
Which of the following represents the correct sequence of steps in deglutition?
The tongue pushes the bolus back to the pharynx – the larynx pushes up, causing the epiglottis to close over the glottis – the bolus moves into the esophagus – peristalsis moves the bolus toward the stomach
Where does the blood from the capillaries of the stomach and intestine go?
Liver
The common bile duct runs from what to what?
From the common hepatic duct to the duodenum?
What is the function of mucus in the stomach
Protect the stomach walls
Which of the following is not an area of the stomach
Pyloric curvature
