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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.
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Which of these human teeth are used for grinding?
- A. incisors
- B. canines
- C. premolars
- D. molars
Correct Answer: D
Rationale: Molars are flat, broad teeth specialized for grinding food.
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.
Crypts of Lieberkuhn are found in between the villi. They secrete :
- A. Glucagon
- B. Succus entericus
- C. Insulin
- D. Gastric juice
Correct Answer: B
Rationale: Crypts of Lieberkuhn secrete succus entericus for intestinal digestion.
Where in the nephron is most of the glucose reabsorbed back into the blood?
- A. Proximal convoluted tubule
- B. Distal convoluted tubule
- C. Loop of Henle
- D. Henley upon Thames
Correct Answer: A
Rationale: Most glucose is reabsorbed in the proximal convoluted tubule via active transport.
What is frenulum?
- A. It is the fold by which tongue is attached to the floor of oral cavity.
- B. It is uvula is present on pharyngeal wall
- C. It is a tonsil like structure on the lateral walls of palate
- D. It is V-shaped furrow which divides the surfaces of tongue
Correct Answer: A
Rationale: The frenulum is a fold of tissue that anchors the tongue to the floor of the mouth.