Where is bicep muscle

The biceps brachii muscle biceps muscle of the arm is a strong biarticular muscle bridging the shoulder and elbow joint. In contrast to humans, it only possesses one tendon of origin in domestic mammals, that begins on the supraglenoid tubercle of scapula.

It passes over the extensor side of the shoulder joint through the intertubercular groove and tends distally along the craniomedial aspect of the humerus.

At the level of the elbow joint, the muscle splits into two parts: the stronger part inserts on the radial tuberosity and the other ont the proximal ulna. Some fibres lacertus fibrosus , extend further distally to radiate into the extensor carpi radialis and the fascia of forearm. In carnivores, the biceps brachii muscle invaginates the capsule of the shoulder joint cranially, thus forming a synovial sheaths in the region of the intertubercular groove.

A transverse band transverse retinaculum of humerus between the lesser and the greater humeral tubercle holds the muscle in place. Action: Flexion of the elbow joint, extensor of shoulder joint, stabiliser of the shoulder and carpal joint. IMAIOS and selected third parties, use cookies or similar technologies, in particular for audience measurement. They insert attach on the radial tuberosity, which is a small protrusion of bone just beyond your elbow.

The functions of the biceps include 1 :. The triceps , short for triceps brachii, is a muscle located on the back of your upper arm. The long head originates from the rear of the shoulder blade, whereas the lateral and medial heads originate from the lateral side and posterior rear surfaces of the humerus , or upper arm bone.

All three heads insert attach on the rear of your elbow on a small protrusion of bone called the olecranon process. The functions of the triceps include 2 , 3 :. The biceps and triceps are each unique in their makeup and function. One consists of two heads and is responsible for arm flexion, and the other consists of three heads and is responsible for arm extension.

Like any other muscle, the biceps should be targeted in a variety of rep ranges. Usually, 6—12 reps per set is a good place to start for most people. Generally, beginners may want to start with 2—3 working sets of biceps training per session, whereas intermediate and advanced trainees may need 4—6 sets to see growth.

The triceps are similar to the biceps in that they should be targeted in a variety of rep ranges. Anything between 6—12 reps per set is common. For beginners, 2—3 sets per session may be sufficient — though as you become more advanced, more sets are required to make progress. Considering that the triceps are also a relatively small muscle, they can recover quickly , which is why at least 2 sessions per week will maximize muscle gains 4.

In many cases, the tendon may begin fraying. As the damage progresses, the tendon can completely tear. The result is typically a partial or complete loss of function in that part of the arm, as well as additional symptoms such as pain and swelling.

Not only can bicep tears occur at the elbow or shoulder, but they can also be either partial or complete. A complete tear will sever the tendon into two places, which takes a longer time to heal. This type of bicep tear may also require surgery to reattach the tendon and regain strength and function of the arm.

Partial tears damage part of the tendon but do not completely sever it. Partial tears may also lead to complete tears if the tendon begins to fray with continued use. For example, lifting a heavy object or performing a repetitive motion with a partial tear may cause the torn tendon to fray and cause a complete tear. A bicep tear typically occurs due to either injury or overuse.

Injury may cause a tear following any heavy lifting, direct injuries to the arm, or improper use or twisting of the arm. Overuse may result in a tear if the tendons wear down or fray over time. Eventually, the tendons may tear or sever completely without sufficient rest. Evidence suggests that tears in the upper, or proximal, tendons are more common and are more likely to occur with increasing age.

In addition, performing heavy overhead activities, such as weightlifting or certain physical jobs, and overuse through sports, such as swimming or tennis, can cause wear and tear on the tendons and increase the risk of a bicep tear at the shoulder. Evidence also indicates that smoking and corticosteroid medications can increase the likelihood of a bicep tear at both the shoulder and the elbow. The symptoms of a bicep tear can vary based on the location and severity of the tear.

Symptoms may include:. Diagnosing the type and severity of bicep tear is important to find the correct treatment. Diagnosis typically begins with a physical examination, where doctors will look for signs of injury and loss of function in the arm. Generally, they will be able to observe a complete tear due to changes in the appearance of the arm. However, partial tears are less obvious. The term biceps brachii is a Latin phrase meaning "two-headed [muscle] of the arm", in reference to the fact that the muscle consists of two bundles each with its own origin but with a common insertion point near the elbow.

Note that the word biceps is used in both singular and plural: the form bicep , although common, is incorrect. The proper Latin plural bicipites is considered pedantic and rarely used in English. Proximally, the short head of the biceps attaches to the coracoid process of the scapula.

The tendon of the long head passes into the joint capsule at the head of the humerus , and attaches on the scapula at the supraglenoid tubercle. Distally, biceps attaches to the radial tuberosity , and because this bone can rotate, the biceps also supinates the forearm. The biceps also connects with the fascia of the medial side of the arm, at the bicipital aponeurosis.