Connecticut has one U.S. Representative from each Connecticut congressional district. The number of Connecticut congressional districts is based on the last census. Connecticut currently has 5 congressional districts.
The triceps brachii muscle (Latin for three-headed muscle of the arm) is the large muscle on the back of the upper limb of many vertebrates. It is the muscle principally responsible for extension of the elbow joint (straightening of the arm).he triceps is an extensor muscle of the elbow joint and an antagonist of the biceps and brachialis muscles. It can also fixate the elbow joint when the forearm and hand are used for fine movements, e.g., when writing.
Muscles can contract and relax but they cannot stretch themselves, so they must be stretched by the contraction of their antagonistic partners. All muscles work in antagonistic pairs. Use the animation above to see how the biceps and triceps work together to make the elbow joint move.Hover over a muscle or bone to see its name. Click on a muscle to see its name and what happens when it contracts Click on a bone to see its common name.The elbow is a hinge joint; it can open and close like a door.Biologists use the word âextendâ to mean straighten the joint and the word âflexâ to mean bend the joint. The triceps is an extensor muscle because it extends the elbow.he elbow is a hinge joint; it can open and close like a door. Biologists use the word âextendâ to mean straighten the joint and the word âflexâ to mean bend the joint.