Which proteins on the antigen-presenting cell are recognized by the helper T-cell?

CD8 receptors
MHC proteins
IL-1 receptors
IL-2 receptors


MHC proteins

Health & Biomechanics

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The iatrogenic form of Cushing syndrome is caused by:

A) Long-term cortisone therapy B) Pituitary tumor secreting ACTH C) Benign or malignant adrenal tumor D) Ectopic ACTH-secreting lung tumor

Health & Biomechanics

Calculate the VO2maxof a person exercising maximally and achieving a heart rate of 190 bpm and a maximal stroke volume of 120 mL.

A. 1.14 L/min B. 1 L/min C. 2.5 L/min D. 3 L/min E. 3.42 L/min

Health & Biomechanics

For the data listed below, complete the following:

a. Calculate the range. b. Calculate the median. c. Calculate the cumulative percentile of 17. d. Calculate the mean. e. Calculate the standard deviation. X f 25 1 23 3 22 4 21 6 20 8 19 10 18 7 17 5 16 6 15 3 14 2 13 2

Health & Biomechanics

Metabolic alkalosis is more common metabolic acidosis.

A) True B) False C) Cannot determine D) Not enough information

Health & Biomechanics