(a) Name the four muscle pairs that act in unison to compress the abdominal contents. (b) How does their arrangement (fiber direction) contribute to the strength of the abdominal wall? (c) Which of these muscles can effect lateral rotation of the spine? (d) Which can act alone to flex the spine?
Lecture 15: A mino Acids: Protein Building Blocks I. eneral properties and chemistry of the amino acids ● A. General properties 1. Small, n itrogen-containing organic molecules 2. Covalently bond together (called a peptide bond) to form larger molecules, from dipeptides to olypeptides (called proteins) ● B. Chemistry - 1. 20 amino acids each containing an alpha carbon, a carboxyl (-COOH or -COO) group, an amine (-NH 2or -N3 ) group, and an "R" group Structure