Which class of nephron is crucially important in establishing a salt concentration gradient in the kidney so that urine concentration can be regulated?
A. Intercalated nephrons
B. Juxtamedullary nephrons
C. Adrenal nephrons
D. Cortical nephrons
B
Anatomy & Physiology
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Which muscle will depress the scapula or elevate the ribs?
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The pacemaker of the heart is the
a. Purkinje fibers. b. the bundle branches. c. Bundle of His. d. AV node. e. SA node.
Anatomy & Physiology
You conduct an experiment on twenty 18-year-old male subjects to see how various levels of exercise influence heart rate. Explain why only 18 -year-old males were used as subjects.
What will be an ideal response?
Anatomy & Physiology
A person with Cushing syndrome has a tendency toward diabetes mellitus
a. true b. false
Anatomy & Physiology