What prevents bacteria and materials in the large intestine from flowing backward into the ileum of the small intestine?
A) circular folds B) ileocecal valve
C) gastroesophageal sphincter D) pyloric sphincter
Answer: B
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The most abundant cation in the glomerular filtrate is ___________________.
What will be an ideal response?
Which of the following cell organelles is/are not surrounded by membranes? 1. Lysosomes; 2. Peroxisomes; 3. Mitochondria; 4. Flagellae; 5. Ribsomes
A. 1 and 2 B. 1 and 3 C. 4 and 5 D. 1 and 5 E. 2 and 3
What is false about surfactant?
A. Surfactant causes water to form a thin sheet instead of a bead. B. Surfactant increases the surface tension of water. C. Surfactant reduces the chance the alveoli walls collapsing on each other. D. All of these statements are false.
Which knee ligament is most crucial for preventing hyperadduction?
A. Tibial collateral ligament B. Fibular collateral ligament C. Patellar ligament D. Anterior cruciate ligament E. Medial meniscus