Saltatory conduction is made possible by ________
A) erratic transmission of nerve impulses
B) diphasic impulses
C) large nerve fibers
D) the myelin sheath
D
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Identify the organelle that provides enzymes for autolysis
A. Peroxisomes B. Mitochondria C. Smooth ER D. Golgi apparatus E. Lysosomes
Which of the following accounts for most of the volume of connective tissues?
A) blood vessels B) lipid molecules C) carbohydrates D) cells E) extracellular matrix
Which of the following in NOT correctly matched?
A. congestive heart failure on the left side: pulmonary edema B. heart murmur: abnormal sound relating to abnormal valves in or near the heart C. cardiac tamponade: a build-up of fluid or blood in the pericardium which compresses the heart and can lead to heart failure D. atrial fibrillation: asynchronous contractions of the atria that lead to circulatory failure and death E. myocardial infarction: heart attack
Choose the structure or substance that is NOT a barrier to acid and pepsin damage in the stomach.
A. Gap junctions between epithelial cells B. Bicarbonate C. Adherent layer of mucus D. Rapid turnover of epithelial cells