Nokea
Where is water mainly absorbed in the alimentary canal?
- A. Small intestine
- B. Stomach
- C. Large intestine
- D. Esophagus
Correct Answer: C
Rationale: The large intestine absorbs most of the remaining water from digested material, forming semi-solid feces.
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What happens during the oral phase of digestion?
- A. Food is chewed and mixed with saliva
- B. Chyme is formed with gastric juice
- C. Nutrients are absorbed
- D. Waste is expelled
Correct Answer: A
Rationale: In the oral phase, food is mechanically broken down by chewing and mixed with saliva to begin starch digestion.
What is the major function of the podocyte?
- A. To keep large molecules out of the nephron
- B. To strengthen the glomerular capillaries
- C. To act as macrophages in the kidney
- D. To detect chemical changes in the blood
Correct Answer: A
Rationale: Podocytes form a filtration barrier in Bowman's capsule, preventing large molecules from entering the filtrate.
C-shaped widest part of intestine
- A. Pancreas
- B. Liver
- C. Duodenum
- D. Thyroid
Correct Answer: C
Rationale: The duodenum is the C-shaped, widest part of the small intestine.
Formation of gallstones is referred to as:
- A. jaundice
- B. cirrhosis
- C. hepatitis
- D. cholelithiasis
Correct Answer: D
Rationale: Cholelithiasis is the medical term for the formation of gallstones.
The kidneys, skin, and lungs are each a part of the system.
- A. integumentary
- B. respiratory
- C. excretory
- D. digestive
Correct Answer: C
Rationale: The kidneys, skin, and lungs are all part of the excretory system, removing various wastes.