Explain why sunburned skin peels rather than sheds as a powder
What will be an ideal response?
The abundant desmosomes between cells in the superficial layers of the skin hold the cells together as a sheet instead of loosely organized cells.
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The study of the relationships of the body's structures by examining cross sections of tissues or organs is called ________ anatomy
A) gross B) surface C) systemic D) regional E) sectional
Which of the choices below is the salt level-monitoring part of the nephron?
A) macula densa B) principal cell C) vasa recta D) loop of Henle
In what way do mast cells participate in tissue defense?
a. antigen presentation bound to class II MHC proteins b. secretion of suppression factors that inhibit the immune response c. stimulation and coordination of inflammation by release of histamine and heparin d. destruction of cell membranes containing abnormal antigens
The portion of the nephron that empties into the collecting duct is the ________.
A. distal convoluted tubule B. proximal convoluted tubule C. glomerulus D. descending loop of Henle E. ascending loop of Henle