Nokea
All about human tongue is true EXCEPT:
- A. Anterior 2/3 of Dorsal surface is covered by Parakeratinized epith.
- B. Post. 1/3 contain lingual tonsils.
- C. Its ventral surface has projections called lingual papilla.
- D. Contain skeletal muscle fibers arranged in 3 directions.
Correct Answer: C
Rationale: The ventral surface of the tongue is smooth and covered by non-keratinized stratified squamous epithelium, not lingual papillae, which are on the dorsal surface.
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The nurse is teaching classes on development to parents of toddlers. A parent asks when a child should be toilet trained. The nurse bases a response on knowledge that sphincter control is generally possible by age months. Provide a numeric answer.
- A. 18
- B. 24
- C. 30
- D. 36
Correct Answer: B
Rationale: Sphincter control typically develops around 24 months, enabling toilet training.
One of the following is not true about the enteroendocrine cells:
- A. They are present in the stomach, small intestine and large intestine.
- B. They are of two types open and closed.
- C. They deliver their secretions only in the git lumen.
- D. They are also called argentaffine cells
Correct Answer: C
Rationale: Enteroendocrine cells release hormones into the bloodstream (endocrine function), not just the GIT lumen.
Which of the following substances is considered inorganic?
- A. minerals
- B. fats
- C. carbohydrates
- D. proteins
Correct Answer: A
Rationale: Minerals are inorganic substances, unlike fats, carbohydrates, and proteins, which are organic.
Small finger-like projection, which produce numerous microscopic projections are supplied with a network of
- A. Blood capillaries and lacteal
- B. Blood capillaries only
- C. Lacteal only
- D. A large lymphoid vessel and valves
Correct Answer: A
Rationale: Villi contain blood capillaries and lacteals for absorbing nutrients like glucose and fats.
Reflux of gastric juice due to diminished the lower esophageal sphincter tone with symptoms as heart burn or atypical chest pain.
- A. Chaga's disease
- B. Megacolon
- C. Gastro-esophageal reflux disease (GERD)
- D. Atrophic gastritis.
Correct Answer: C
Rationale: GERD is caused by a weakened lower esophageal sphincter, allowing gastric juice to reflux, causing heartburn.