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brachialis

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Myra Hodkiewicz

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3y ago

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Which two muscles are forearm flexors with no role in supination?

Brachialis and brachioradialis


What synergist for supination of the hand?

A supinator is a synergist for supinating the hand. Brachialis is the forearm flexor which has no role in supination.


What muscle forearm flexors no role in supination?

The pronator teres muscle is a forearm muscle that plays a role in pronation (rotating the palm downwards), and not in supination (rotating the palm upwards).


What 5 muscles innervated by the radial nerve?

The radial nerve innervates several muscles in the arm and forearm, including the triceps brachii, anconeus, brachioradialis, extensor carpi radialis longus, and extensor carpi radialis brevis. These muscles are primarily responsible for extending the elbow and wrist, as well as aiding in forearm supination. The radial nerve plays a crucial role in motor function and strength in the posterior compartment of the arm and forearm.


What muscles are used to twist an extended arm?

Twisting an extended arm primarily involves the muscles of the shoulder, particularly the rotator cuff muscles, which include the supraspinatus, infraspinatus, teres minor, and subscapularis. Additionally, the biceps brachii and triceps brachii play a role in controlling the motion of the elbow and forearm during the twist. The muscles of the forearm, such as the pronator teres and supinator, are also engaged to facilitate pronation and supination of the forearm. Overall, a coordinated effort between these muscle groups allows for effective twisting of an extended arm.


Which of the following muscles has no direct role in flexing the forearm at the elbow?

Biceps. Brachhil


What muscles innervated by ulnar nerve?

The ulnar nerve innervates several muscles in the forearm and hand. In the forearm, it primarily innervates the flexor carpi ulnaris and the medial half of the flexor digitorum profundus. In the hand, it innervates most of the intrinsic muscles, including the hypothenar muscles, the adductor pollicis, and the interossei muscles, as well as the medial two lumbricals. This nerve plays a crucial role in fine motor control and grip strength.


What role do forearm tendons and ligaments play in the movement and stability of the arm?

Forearm tendons and ligaments play a crucial role in the movement and stability of the arm. Tendons connect muscles to bones, allowing for movement by transmitting the force generated by the muscles. Ligaments connect bones to other bones, providing stability and support to the joints. Together, these structures work to facilitate smooth and coordinated movements of the arm while also preventing excessive or harmful motions that could lead to injury.


Which is the muscles that support weight when you are on crutches?

When using crutches, the primary muscles that support weight are the muscles of the upper body, particularly the shoulders, triceps, and pectoral muscles. The latissimus dorsi and the muscles of the forearm also play a significant role in stabilizing and controlling movement. Additionally, the core muscles help maintain balance and posture while using crutches. Proper technique and muscle engagement are crucial to prevent strain and injury.


What is the lower medial arm bone?

The lower medial arm bone is the ulna. It runs parallel to the radius in the forearm and is positioned on the side opposite the thumb. The ulna plays a crucial role in forming the elbow joint and provides stability to the forearm. It also serves as an attachment point for various muscles and ligaments.


What Muscles used to throw a dart?

Throwing a dart primarily engages the muscles of the shoulder, particularly the deltoids, which facilitate arm movement. The rotator cuff muscles stabilize the shoulder joint during the throw. Additionally, the muscles of the forearm, including the flexors and extensors, play a crucial role in gripping and releasing the dart, while core muscles help maintain balance and posture throughout the motion.


What is muscles do you burn off when washing dishes?

When washing dishes, you primarily engage your arm muscles, including the biceps, triceps, and forearm muscles, as you lift and scrub items. Additionally, your shoulder muscles, such as the deltoids, are activated when reaching and moving dishes. Your core muscles also play a role in maintaining stability and posture while standing at the sink. Overall, it's a light workout for the upper body.