Nokea
What is the role of mucus secreted by the stomach?
- A. To protect the lining of the stomach
- B. To digest fats
- C. To kill the germs in the food
- D. To digest the proteins
Correct Answer: A
Rationale: Mucus or Gastric mucus is a gel barrier secreted by epithelial cells & glandular cells in the stomach wall. It protects the inner lining of the stomach from HCl.
You may also like to solve these questions
The small intestine is held to the posterior abdominal wall by the:
- A. mesentery
- B. falciform ligament
- C. greater omentum
- D. lesser omentum
Correct Answer: A
Rationale: The mesentery supports and anchors the small intestine to the posterior abdominal wall.
What is the main role of the hepatic portal system?
- A. Regulating blood glucose levels through the release of insulin
- B. Supplying oxygen to the liver for metabolic processes
- C. Eliminating toxins from the bloodstream
- D. Filtering and processing nutrients absorbed from the gastrointestinal tract
Correct Answer: D
Rationale: The hepatic portal system transports nutrient-rich blood from the GI tract to the liver for processing and detoxification before entering systemic circulation.
Which type of fat can cause heart disease if consumed in high quantities?
- A. carbohydrates
- B. saturated
- C. calories
- D. unsaturated
Correct Answer: B
Rationale: Saturated fats, when consumed excessively, can increase cholesterol levels, leading to heart disease.
The family of an older adult client is concerned about the client's lack of appetite. The nurse counsels the family initially, recalling that:
- A. The client should be evaluated by the primary care provider
- B. The client is depressed and needs antidepressant medication
- C. Loss of appetite is often associated with substance abuse
- D. Loss of taste buds is a common finding in the elderly
Correct Answer: D
Rationale: Age-related loss of taste buds can reduce appetite in older adults.
A digestive enzyme, salivary amylase, in the saliva begin digestion of-
- A. Carbohydrates
- B. Protein
- C. Fats
- D. Nucleic acids
Correct Answer: A
Rationale: Salivary amylase (ptyalin) in saliva begins the digestion of carbohydrates by breaking down starches into simpler sugars like maltose.