Cells that secrete cytokines, which coordinate specific and nonspecific defenses, are called
A) B cells.
B) plasma cells.
C) helper T cells.
D) mast cells.
E) NK cells.
C) helper T cells.
Anatomy & Physiology
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Indicate whether this statement is true or false.
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Indicate whether the statement is true or false
Anatomy & Physiology
What characteristic(s) of the respiratory membrane facilitate(s) gas exchange?
A. Large amount of tissue fluid to dissolve the gases B. Small surface area C. Simple squamous epithelium of the alveolus and capillaries D. Large groups of white blood cells in contact with the membrane
Anatomy & Physiology
What organs appear very early in development?
A) lungs and alimentary canal B) skeletal muscles C) brain and heart D) kidneys and glands
Anatomy & Physiology