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arm flextion :
Muscle
Origin
Insertion
Action
Coracobracialis
Corocoid process of scapula
Middle of medial shaft of humerus
Flexes and adducts the humerus
Biceps Brachii
Short head- Coracoid process of scapula
Long head- Supraglenoid tubercle of scapula
Tuberosity of the radius and aponeurosis of biceps brachii
Flexes elbow, supinates forearm, flexes shoulder joint
Triceps Brachii
Long head- Infraglenoid tubercle of scapula
Lateral head- Posterior surface of proximal half of humerus
Medial head- Posterior surface of distal half of humerus
All heads- olecranon process of ulna
Long head- Extends and adducts the shoulder
All heads- Extend the forearm (elbow)
Subclavius
First rib and cartilage
Inferior, lateral aspect of clavicle
Elevates first rib, stabilizes sternoclavicular joint, draws clavicle down
What else can I help you with?
What muscles are involved in knee flexion?
The muscles involved in knee flexion are the hamstrings, gastrocnemius, and popliteus.
What muscles act in plantar flexion?
popliteus is not involved in plantarflexion...its involved in leg flexion
What does your arm bend to?
Your arm bends at the elbow joint, which allows for flexion and extension. The primary muscles involved in bending the arm are the biceps brachii for flexion and the triceps brachii for extension. This motion enables various activities, such as lifting, throwing, and reaching.
What are the primary muscles involved in hip extension and knee flexion?
The primary muscles involved in hip extension are the gluteus maximus and the hamstrings. The primary muscles involved in knee flexion are the hamstrings and the gastrocnemius.
What kind of muscle not responsible for flexion or extension of the arm?
The supinator muscle is a muscle in the forearm that is not directly responsible for flexion or extension of the arm. Its primary function is to rotate the forearm in a movement called supination, where the palm faces up.
What are flexors and extensors in the upper arm?
FLEXORSBiceps brachia- Primarily forearm supination, but also functions in elbow flexion, shoulder flexion, and shoulder adductionChoracobrachialis- Shoulder flexion, shoulder adductionBrachialis- Elbow flexionEXTENSORSTriceps Brachii- Powers elbow extension
What muscles are involved in horizontal flexion?
The muscles that horizontally flex the shoulder are the Pectoralis Major and the coracobrachialis.
What muscles are used during waving?
Several muscles are used. Biceps brachii for elbow flexion, triceps brachii for elbow extension. Trapezius to raise arm. Deltoid abducts the arm. The pectoralis major allows internal rotation, adduction, and flexion of the arm. The pronator quadratus, pronator teres and supinator all arm forearm muscles that move the wrist. The brachioradialis, brachialis and aconeus are also used.
What three muscles are involved in flexion of the elbow joint?
biceps brachii,corahobrachialis,biseps
What plane does flexion of the arm at the shoulder occur in?
Flexion of the arm at the shoulder occurs primarily in the sagittal plane. This movement involves raising the arm forward and upward, decreasing the angle between the arm and the front of the body. It typically involves the use of muscles such as the deltoid and biceps brachii.
What joints are involved in elbow flexion?
Elbow flexion primarily involves the hinge joint formed by the humerus (upper arm bone) and the ulna (one of the two bones in the forearm). The radius, the other forearm bone, also plays a role but to a lesser extent. The main muscles responsible for elbow flexion are the biceps brachii and brachialis.
What are the differences between shoulder extension and flexion in terms of range of motion and muscle activation?
Shoulder extension involves moving the arm backward, increasing the angle between the arm and the body, while shoulder flexion involves moving the arm forward, decreasing the angle. Shoulder extension typically has a greater range of motion compared to flexion. Different muscles are activated during each movement: shoulder extension primarily activates the latissimus dorsi and teres major muscles, while shoulder flexion primarily activates the anterior deltoid and pectoralis major muscles.
