Nokea
Caudal is defined as toward which direction?
- A. head
- B. feet
- C. tail
- D. chest
Correct Answer: C
Rationale: Caudal is a directional word that indicates toward the 'tail,' the distal portion of the spine.
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Which is the function of epithelial membranes?
- A. Secretes mucus, lines ends of bones, and lines bursae.
- B. Lines ends of bones, secretes synovial fluid, and lines internal surfaces of organs.
- C. Covers the wall of lower digestive tract, secretes mucus, and lines lungs, peritoneum, and pericardium.
- D. Lines lungs, peritoneum, and pericardium, and secretes synovial fluid.
Correct Answer: C
Rationale: The epithelial membrane secretes mucus, lines the lungs, peritoneum, and pericardium, and covers the wall of the lower digestive tract. The synovial membrane secretes synovial fluid to prevent friction between joints and the ends of bones, and lines the bursae found between moving body parts.
Which traits describe visceral muscles?
- A. Smooth and voluntary
- B. Smooth and involuntary
- C. Striated and voluntary
- D. Striated and involuntary
Correct Answer: B
Rationale: Visceral (smooth) muscles will not function at will; thus, they act involuntarily.
Which is the largest organelle, responsible for cell reproduction and control of other organelles?
- A. Nucleus
- B. Ribosome
- C. Mitochondrion
- D. Golgi apparatus
Correct Answer: A
Rationale: The nucleus is the largest organelle within the cell.
Active transport in the movement of ions and other water-soluble particles across cell membranes requires that the body uses which process?
- A. rapid filtration.
- B. charged diffusion.
- C. a chemical pump.
- D. osmosis.
Correct Answer: C
Rationale: Active transport of ions and other water-soluble particles of the cell membrane require a chemical pump, such as insulin, to move glucose into the cell.
Which are the distinct surface proteins of the plasma membrane essential in determining?
- A. Tissue typing
- B. Blood count
- C. Effectiveness of a drug
- D. Sexual maturity
Correct Answer: A
Rationale: The plasma membrane has distinct surface proteins as coming from one individual. This is the basis for the procedure of tissue typing to determine compatibility before an organ transplant.