Nokea
Which part(s) of the esophagus necessitate(s) input from the central nervous system to orchestrate peristalsis?
- A. The upper third
- B. The middle third
- C. The lower third
- D. The upper and middle portions
Correct Answer: A
Rationale: The upper third of the esophagus, with striated muscle, requires CNS input (via the vagus nerve) for primary peristalsis.
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The liver facilitates the conjugation of bilirubin with glucuronic acid, resulting in the formation of bilirubin glucuronide. The primary objective of this process is to:
- A. Convert bilirubin into a form suitable for storage within the body
- B. Generate bile salts required for the absorption of lipids
- C. Enable the transportation of bilirubin in the blood to sites where it can be utilized
- D. Render bilirubin water-soluble, facilitating its excretion in the urine
Correct Answer: D
Rationale: Conjugation makes bilirubin water-soluble, allowing its excretion in bile and urine, preventing accumulation.
Taste buds are found on the following papilla EXCEPT:
- A. Circumvallate papilla
- B. Filiform
- C. Fungiform
- D. Foliate
Correct Answer: B
Rationale: Filiform papillae lack taste buds and are primarily involved in touch sensation, unlike the other papillae types.
By which process, most of glucose and amino acids are absorbed in the small intestine?
- A. Active transport
- B. Passive transport
- C. Osmosis
- D. Selective absorption
Correct Answer: A
Rationale: Glucose and amino acids are primarily absorbed via active transport in the small intestine.
What waste does the integumentary system remove from the body?
- A. liquid waste
- B. carbon dioxide
- C. salt and water
- D. urea
Correct Answer: C
Rationale: The integumentary system, via sweat glands, removes salt and water through perspiration.
In stomach after physical and chemical digestion food is called:-
- A. Chyme
- B. Chyle
- C. Amino acid
- D. Bolus
Correct Answer: A
Rationale: Food in the stomach after digestion is called chyme.