The blunt tip of a renal pyramid from which urine is collected is a renal ____________________.
Fill in the blank(s) with the appropriate word(s).
papilla
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In the early twentieth century, people sometimes ingested radioactive substances in "health drinks" made with radium-enriched water. Why did they often develop bone cancer?
A. The radium leached bone mineral from the skeleton. B. The radium caused tumors in the digestive tract which then spread to the bone tissue. C. Bone tissue absorbs foreign elements from the blood and the radium directly affected bone cells. D. The radium caused lung cancer that then spread to the bone tissue. E. There is no evidence that the development of bone cancer was related to ingestion of radium.
The above figure depicts which of the following bone-forming processes?
bone remodeling in response to changes in mechanical stress bone repair at a site of fracture endochondral ossification during bone formation and growth intramembranous ossification during embryonic development
An abnormally low production of gonadotropin produces a condition called __________.
a. follitropism b. hypogonadism c. somatomedins d. diabetogenesis
A deficiency or absence of helper T cells interact would decrease the immune response to antigens presented with class-2 MHC molecules.
Answer the following statement true (T) or false (F)