Which describes the urethra?
a) it conveys urine from the renal papillae to the renal pelvis
b) it conveys urine from the bladder out of the body
c) it conveys urine from the kidneys to the bladder
b) it conveys urine from the bladder out of the body
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The hormone insulin enhances the transport of glucose (sugar) from the blood into most of the body's cells. Its secretion is controlled by a negative-feedback system between the concentration of glucose in the blood and the insulin-secreting cells. Therefore, which of the following statements is correct?
a. a decrease in blood glucose concentration stimulates insulin secretion, which in turn further lowers the blood glucose concentration. b. an increase in blood glucose concentration stimulates insulin secretion, which in turn lowers the blood glucose concentration. c. a decrease in blood glucose concentration stimulates insulin secretion, which in turn increases the blood glucose concentration. d. an increase in blood glucose concentration stimulates insulin secretion, which further increases the blood glucose concentration. e. none of these answers.
Identify the correct descriptions of fibrous joints.
A. united by cartilage B. united by fibrous tissue C. classified functionally as diarthroses D. having a limited range of motion E. having no joint cavity F. possessing a joint cavity
In females, the genital tubercle becomes the
A. uterus. B. ovary. C. clitoris. D. vagina. E. labia.
A hole in the interventricular septum in an infant may cause all of the following symptoms except
A) mixing of oxygen-rich and oxygen-poor blood. B) a murmur to be heard. C) the heart to work harder. D) the individual to have low peripheral oxygen saturation. E) build-up of atherosclerotic plaque.