semispinalis capitis
splenius capitis
longismuss capitis
spinalis capitis
trapezius
The antagonist is your mom
any muscle that assist in shoulder extention posterior fibor of deltoid Triceps long head
Sternocleidomastoid and the Scalenes are Synergists, which mean that they work together to provide the same movements (flexion, rotation and lateral flexion of the head and neck)An Antagonist is a muscle that does the opposite movements. In this case, Antagonists of the Scalenes would be your posterior neck muscles, such as:Upper TrapeziusSplenius CapitusSplenius CervicisSemispinalis Capitis, etc
The flexor carpi radialis is the agonist muscle in wrist flexion. This muscle, know as a wrist flexor, is located in the forearm.
Tiil adidas is the prime mover of ankle plantar flexion.
The antagonist muscle in the flexion of the knee is the quadriceps muscle group. When the knee is being flexed, the quadriceps relax to allow the hamstrings to contract and bring about the flexion movement.
Tibialis Posterior
If a prime mover produces flexion, its antagonist will be the muscle responsible for producing extension at the same joint. They work in opposition to each other to create movement and stabilize the joint.
The Pectoralis major (clavicular head), coracobrachialis, and biceps brachia are the synergists for shoulder flexion. For horizontal flexion, the Anterior deltoid is the synergist muscle.
aids in flexion of the head and the neck
shoulder
The agonist muscle for wrist flexion is the flexor carpi radialis, while the antagonist muscle is the extensor carpi radialis longus. These muscles work in opposition to produce movement at the wrist joint.