Which of the following muscles of the vertebral column are unique, in that they originate on the iliac crest?

A) Iliocostalis group
B) Semispinalis group
C) Semispinalis thoracis
D) Longissimus group
E) Quadratus lumborum

The cation that plays a major role in determining the osmotic pressure of the plasma is ________.

A) Na⁺
B) K⁺
C) Cl⁻
D) phosphate
E) H⁺