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    You are at:Home»Anatomy»Meet Your Arm Muscles – Biceps Brachii
    Massive Biceps
    Massive Biceps

    Meet Your Arm Muscles – Biceps Brachii

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    By krunoslav on April 7, 2014 Anatomy
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    Biceps Brachii Anatomy

    We use our arms for almost every activity in work and play, it helps to have strong arms for a wide variety of tasks—gardening, opening jars, throwing a ball, or playing tennis. Strong, attractive arms are within reach of anyone who will devote a little time to developing them. Just about every upper-body exercise – whether it’s for your chest, back, or shoulders – also involves your arms. So work hard on your other upper-body muscles, and your arms will benefit by default.

    Biceps Brachii Muscle Anatomy
    Biceps Brachii Muscle Anatomy

    The primary upper arm elbow flexors are the biceps brachii and the brachialis.

    Its primary function is the supination of the wrist—turning the hand until it’s in a palms-up position; its secondary function is to lift the forearm to the clavicle. The biceps, therefore, cannot be worked efficiently until both of these functions have been fulfilled.

    The biceps are probably the most widely recognized muscle group – the one that pop when you „make a muscle“. The brachialis, a smaller muscle, is located on the outer part of the upper arm.

    The biceps brachii (sometimes known simply as the biceps) is a double-headed muscle, meaning that it has two points of origin or “heads” in the shoulder area. The short head of each biceps brachii originates at the top of the scapula. The long head originates just above the shoulder joint (at the supraglenoid tubercle). Both heads are joined at the elbow. The biceps brachii is a bi-articular muscle, which means that it helps control the motion of two different joints, the shoulder and the elbow.

    Biceps Brachii Muscle
    Biceps Brachii Muscle

    In addition to the biceps, two other muscles flex (bend) the elbow: the brachialis and brachioradialis.

    The brachialis lies between the biceps and the humerus, attaching to the forearm bone called the ulna. It’s a thick, strong muscle that takes a leading role when you bend your elbow while your palm is in neutral position (turned toward the side of your body) or pronated (turned backward, with your thumb pointed toward your thigh). When well-developed, it’s visible as a cylinder of muscle popping up between your biceps and triceps.

    The brachialis is an assistant that has its own helper, the brachioradialis. The brachioradialis muscle arises from the outer aspect of the lower end of the humerus and then travels down the forearm to attach to the radius just above the wrist joint. Its job is elbow flexion.

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    krunoslav
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    Hey! My name is Petar, and I'm the owner and author of Bodybuilding Wizard. I started this website back in late 2014, and it has been my pet project ever since. My goal is to help you learn proper weight training and nutrition principles so that you can get strong and build the physique of your dreams!

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