What bones protect the spinal cord?
A) ribs
B) sternum
C) vertebrae
D) coxal bones
C
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Sound is transmitted to the brain by hair cells
Indicate whether the statement is true or false.
Osteoarthritis is
A. a bacterial infection transmitted by ticks. B. a condition that may involve an autoimmune disease. C. an inflammation of any joint. D. the most common type of arthritis. E. a metabolic disorder caused by increased uric acid in blood.
A sustained muscle contraction with no relaxation is called
A. fatigue. B. a tetanic contraction. C. a twitch. D. oxygen debt.
A single lobe of a kidney is comprised of __________.
A. two calyces and a renal pelvis B. one pyramid and the overlying cortex C. one major calyx and all of its minor calyces D. a renal medulla and two renal columns E. one collecting duct and all nephrons that drain into it