Transcellular transport of intestinal calcium is accomplished by entry into the epithelial enterocytes via
A) a sodium-iodide transporter.
B) an amino acid transporter (MCT8).
C) CaSR (calcium sensing receptor).
D) osteoclasts.
E) apical calcium channels (TRPV6 = ECaC).
E) apical calcium channels (TRPV6 = ECaC).
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The concentration of dissolved oxygen is ________ in plasma than in interstitial fluid.
A. the same B. higher C. lower
The muscle that forms a partition between the thoracic and abdominal cavities is the
A. scalenes. B. interspinales. C. internal intercostal. D. diaphragm. E. transversus thoracis.
Which of these pathways correctly traces blood as it travels from the aortic arch to the left arm?
A) aortic arch, brachiocephalic trunk, right common carotid artery B) aortic arch, left common carotid artery, left internal carotid artery C) aortic arch, left subclavian artery, left axillary artery, left brachial artery D) ascending aorta, right coronary arteries E) abdominal aorta, celiac trunk, left gastric artery
T cells or B cells that are capable of responding to a specific antigen by binding to it with antigen-specific receptors that appear on the lymphocyte's surface are considered ________
A) clones B) complement C) self-tolerant D) immunocompetent