When blood pH drops, the amount of oxyhemoglobin _____ and oxygen delivery to the tissue cells _____
a) Increases, increases
b) Increases, decreases
c) Decreases, increases
d) Decreases, decreases
e) Does not change, does not change
c
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Which is a symptom of Parkinson's disease?
A. Loss of proprioception B. Intention tremor C. Resting tremor D. Memory loss E. Flaccid paralysis
The functions of centrioles include ________
A) producing ATP B) serving as the site for ribosomal RNA synthesis C) providing a whiplike beating motion to move substances along cell surfaces D) organizing the mitotic spindle in cell division
Which statement about the medullary vertical osmotic gradient is incorrect?
a. Juxtamedullary nephrons create the gradient through countercurrent multiplication. b. Vasa recta supply blood to the medulla while conserving the gradient. c. Collecting tubules of juxtamedullary nephrons, but not cortical nephrons, descend through the gradient before emptying into the renal pelvis. d. The gradient permits excretion of urine of differing concentrations by means of vasopressin-controlled, variable H2O reabsorption from the final tubular segments. e. None of the above statements are incorrect.
Freshly voided urine ________
A) smells slightly aromatic B) has an ammonia-like odor C) has a strong, pungent smell D) smells fruity (like acetone)