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Match each term with the correct description: made up of organs that rid your body of wastes and control blood volume
- A. urethra
- B. urinary system
- C. bladder
- D. kidneys
Correct Answer: B
Rationale: The urinary system includes organs that remove wastes and regulate blood volume.
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What are the advantages of chewing food at the start of digestion?
- A. increasing surface area
- B. lubricating food
- C. making food soluble
- D. all of the above
Correct Answer: D
Rationale: Chewing increases the surface area for enzyme action, lubricates food with saliva, and helps dissolve food particles.
Sweating during exercise will cause loss of water to the body. It is important to replace the water or could set in:
- A. leukemia
- B. dehydration
- C. heart disease
- D. diabetes
Correct Answer: B
Rationale: Dehydration occurs when water loss exceeds intake, a common risk during exercise.
During prolonged starvation, body derives nutrition from storage of -
- A. Liver and adipose tissue
- B. Spleen
- C. Liver and lungs
- D. Subcutaneous fat and Pancreas
Correct Answer: A
Rationale: During starvation, the body uses glycogen from the liver and fats from adipose tissue.
The muscular tube that extends from the mouth to the anus is called:
- A. the gullet
- B. the intestine
- C. the colon
- D. the alimentary canal
Correct Answer: D
Rationale: The alimentary canal, also known as the digestive tract, is the continuous muscular tube extending from the mouth to the anus, encompassing all digestive organs.
Out of four layers of alimentary canal, which one forms villi, (finger-like projection)?
- A. Serosa
- B. Mucosa
- C. Submucosa
- D. Muscularis
Correct Answer: B
Rationale: The mucosa layer forms villi, increasing the surface area for absorption in the small intestine.