Nasal polyps are soft, painless growths inside the nasal passages. They often occur in the area where the upper sinuses drain into your nose (where your eyes, nose, and cheekbones meet). You may not even know that you have polyps because they lack nerve sensation. Polyps can grow large enough to block your nasal passages, resulting in chronic congestion. Symptoms can include:
During elbow flexion where the bicep is the agonist, the tricep muscle is the antagonist. While the agonist contracts causing the movement to occur, the antagonist typically relaxes so as not to impede the agonist, as seen in the image above.gonist: The agonist in a movement is the muscle(s) that provides the major force to complete the movement. Because of this agonists are known as the âprime moversâ. In the bicep curl which produces flexion at the elbow, the biceps muscle is the agonist, as seen in the image below.
When extending an arm into a straight position, the triceps is considered the agonist muscle and the biceps is the antagonist, since the triceps muscle generates the motion to straighten the arm and the biceps contracts to return the arm to the original position.