Abstract. Hyperbranched polymers are polymers based on A x B-monomers, ie, monomers having one B-functionality and two or more A-groups resulting in polymers with a potential branching point in each repeat unit.
Source(s): 30 years in sports medicine and clinical nutrition. The biceps brachii is a antagonist of the triceps brachii. If the triceps brachii will contract, the biceps brachii will stretch and vice versa. Pushups. I do about 500 per day (200 AM, 300 PM) and my arms aren't huge, but they're toned pretty well, I guess.
If you flexed the forearm using the biceps brachii and had no triceps muscle as an antagonist, the arm would stay flexed. Muscles Part 2. Some muscles, the biceps brachii for example which acts on both the humerus and radius, can traverse two joints bringing about an action at either or both ends. Muscles Part 1.