Memmler's The Human Body Ch 1-12

-tropin - A word ending for a hormone that controls another gland is: a.) -poiesis b.) -nephrin c.) -tropin d.) -megaly 7 - How many pairs of true ribs are found in the adult thorax? A) 7 B) 9 C) 5 D) 13 10 - The atomic number of sodium is 11. The sodium ion has a single positive charge (Na+). How many electrons does the sodium ion have? (*Hint protons are + charged and electrons are - charged) a.) 12 b.) More information is required to answer this question. c.) 11 d.) 10 12 - A basic substance could have a pH of: a.) 0 b.) 6 c.) 12 d.) 7 13 - A common isotope of sodium is called sodium-24, based on its atomic weight. The atomic weight can be calculated by adding the number of protons and the number of neutrons. The atomic number of sodium is 11. How many neutrons does sodium-24 have? **hint proton number = atomic number** a.) 9 b.) 11 c.) 13 d.) more information is required to answer this question. 14 - How many phalanges are found in each hand? A) 10 B) 12 C) 14