there are many muscles involved some include acromion of scapula, adductor femoris longus, and flexor carpi radialis, etc.
cranial tibial muscles
The extensor muscles of the wrist and digits are responsible for extending the wrist joint and fingers. These muscles work in coordination to help move the hand and fingers upward and away from the palm. Strengthening these muscles can improve wrist and finger mobility and function.
The extensor digitorum longus muscle is responsible for extending the toes (digits) and dorsiflexing the foot at the tarsal joint.
The flexor carpi radialis is the agonist muscle in wrist flexion. This muscle, know as a wrist flexor, is located in the forearm.
Flexion of the digits and the wrist
Extensor carpi ulnaris
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.
Extensor Carpi Radialis Longus
The Neck Muscle
The tendon that extends from the wrist to the shoulder is the biceps tendon.
trapezius muscle
Triceps Brachii extends the forearm at the elbow joint.