Macrominerals

Question 1

name the macrominerals

Answer 1

sodium (Na)
potassium (K)
calcium (Ca)
magnesium (Mg)

Question 2

macrominerals are needed in ____ amounts

Answer 2

gram doses

Question 3

function of sodium

Answer 3

rising phase of AP of nerve & skeletal muscle

Question 4

function of potassium

Answer 4

falling phase of AP of nerve & skeletal muscle

Question 5

function of calcium

Answer 5

• necessary for muscle contraction
• constituent of bone
• allows release of NT at presynaptic terminal

Question 6

function of magnesium

Answer 6

• (in NMDA & AMPA receptor) modulates entry of Ca and Na into postsynaptic neuron
• cofactor for kinases

Question 7

Na is higher in the _____

Answer 7

extracellular fluid

Question 8

K is higher in the ____

Answer 8

intracellular fluid

Question 9

Ca is higher in the ____

Answer 9

extracellular fluid

Question 10

Mg is higher in the ____

Answer 10

intracellular fluid