which muscle is considered the primary agonist of elbow extension
Anatomical terms of muscle Another example is the dumbbell curl at the elbow. The "elbow flexor" group is the agonist, shortening during the lifting phase (elbow flexion). During the lowering phase the "elbow flexor" muscles lengthen, remaining the agonists because they are controlling the load and the movement (elbow extension). For both the lifting and lowering phase, the "elbow extensor" muscles are the antagonists (see below). They lengthen during the dumbbell lifting phase and shorten during the dumbbell lowering phase. Here it is important to understand that it is common practice to give a name to a muscle group (e.g. elbow flexors) based on the joint action they produce during a shortening (concentric) contraction. However, this naming convention does not mean they are only agonists during shortening. This term typically describes the function of skeletal muscles.[5]
Billy Brown (actor) Voices for the Marines commercials.[8]
Tendon Tendons are similar to ligaments; both are made of collagen. Ligaments join one bone to another bone, while tendons connect muscle to bone.
Small intestine Absorption of the majority of nutrients takes place in the jejunum, with the following notable exceptions: