In spinal extension, the primary agonists are the erector spinae muscles, which include the iliocostalis, longissimus, and spinalis muscle groups. These muscles contract to extend the vertebral column, allowing for movements such as arching the back or standing upright. Other supporting muscles, like the multifidus and semispinalis, also assist in this action.
An agonist muscle is a muscle that plays a part in the extension of a muscle. The agonist muscles for a knee extension are the quadriceps and hamstrings.
Antagonist: lats Agonist: Abdominals
Hip Extension the agonist would be Glutues Maximus
Flexor carpi
Agonist - Pectoralis Major, Triceps Brachii Antagonist - Bicep Brachii, Latissimus Dorsi
medulla oblangata
During elbow extension, the agonist muscle is the triceps brachii, which contracts to extend the elbow. The antagonist is the biceps brachii, which relaxes to allow the extension to occur. Synergist muscles, such as the anconeus, assist the triceps in the movement. Fixators, like the muscles of the shoulder girdle, stabilize the shoulder to allow for effective arm movement during the extension.
prime mover (agonist)
extension of the spinal column , so yeah
The spinal cord is an extension of the brain, specifically the brainstem. It serves as a major pathway for communication between the brain and the rest of the body, transmitting sensory and motor signals to and from the brain.
Filium terminale
denticulate ligaments