What are the long and short heads of the biceps and the 3 heads of the triceps 20

The short head of the biceps brachii is positioned toward the front and medial aspect of the arm, while the long head is lateral and its Achilles tendon connects to the deltoid muscle of the shoulder. The triceps brachii begins with three heads: the long head originates from the inferior glenoid tuberosity of the scapula, the lateral and medial heads both arise from the dorsal surface of the humerus, and downward, and the three heads continue to a tendon and end in the olecranon of the ulna.

The main function is to extend the forearms and elbows.

When exercising the long head of the triceps, do a variety of arm flexions, such as parallel bar arm flexion, seated or standing dumbbell or barbell arm flexion, attached gantry or dumbbell arm flexion. Exercisers with strong strength can use parallel bar arm flexion and extension as a warm-up or post-workout movement to increase muscle power, and if it is used as a formal workout, you can increase the weight bearing appropriately.

How to name the triceps.

The brother in front of me explained incorrectly, please listen to the correct explanation

The biceps brachii is divided into 2 heads, the long head and the short head, the long head is on the outside, the short head is on the inside, the triceps brachii is divided into 3 heads, the outer head is a head, the inside is a head, and one is close to the back, the deltoid muscle, which is the so-called shoulder, is divided into 3 parts, the anterior bundle and the posterior bundle, that is, the shoulder, you need to practice well, in order to see these 3 bundles carefully, generally do not exercise, you can only see the middle bundle, that is, the shoulder.

The long head of the biceps brachii and the short head are the medial and lateral sides of the muscle.

The triceps muscles have 3 heads, which are anterior, middle and posterior fascic.

Don't need it, just say that you should know. With the palm of the hand up, raise the arm, the muscle that is contracting backwards on the upper arm at this time is the biceps, and the muscle that is relaxing under the upper arm is the triceps. When doing push-ups, the triceps is the most obvious, very hard, and you can feel it every time you exert yourself, so it is still relatively easy to find.

The biceps brachii is located on the anterior side of the upper arm, and the whole muscle is fusiform. The biceps brachii has a long and short biceps, hence the name. The triceps brachii (gong san tou ji) extends behind the upper arm and can be straightened or extended, and the tri in its English name, triceps brachii, indicates that it has three heads

One is attached to the shoulder blade and the other two to the humerus. At the distal end of the muscle, there is a strong tendon attached to the ulna at the elbow. If you try to straighten your arm, you will feel this tendon tighten.

When the triceps contraction, straighten the elbow or drop the forearm; When the triceps relaxes, the elbow is flexed.

The brachii is the brachii humerus and is located deep in the lower half of the biceps.

The brachialis muscle is the flexor muscle of the upper arm, which originates from the inner and outer sides of the lower half of the humeral body and the medial and lateral muscle septum, and ends at the rough surface of the ulna tuberosity, and has the function of elbow flexion and supination. It has dual innervation of musculocutaneous nerve and radial nerve. The brachialis branch of the radial nerve is the muscular branch of the radial nerve that originates from the elbow to the ulnar side, which is in the muscular space between the brachialis and brachioradialis muscles, and is not accompanied by blood vessels and crossed by fibrous tissue.

Triceps physiological position

Located subcutaneously behind the upper arm, there are three heads. The long head arises from the subglenoid tuberosity of the scapula, the lateral head arises from the lateral superior to the radial sulcus behind the humeral body, and the medial head arises from the medial inferior to the radial nerve sulcus behind the humeral body. The three heads form a muscular abdomen, which ends at the olecranon of the ulna.

Its physiological cross-section is centimeters square. In near fixation, the forearm is extended at the elbow joint, and the long head also extends the upper arm at the shoulder joint, which is the main muscle that straightens the elbow joint. For distal immobilization, keep the upper arm straight with the forearm at the elbow joint (e.g., handstand push-up).

The above content reference: Encyclopedia - Biceps, Encyclopedia - Brachii, Encyclopedia - Triceps.

If you want to build muscles, you can do more strength training, such as bench presses, curls, push-ups, pull-ups, etc., which can build muscles.

The biceps brachii is divided into two parts: the long head and the short head. The long head is near the outside of the arm, and the short head is near the inside of the arm. The exercise also focuses on these two areas.

The biceps brachii has two heads, one lateral and one medial. No single movement can be exercised in complete isolation of a certain head, but it can be targeted.

What is a group of muscles called? Is biceps brachii + triceps just a group of muscles?

Hello dear, the human abdomen is made up of 6 muscles. These 6 muscles are a group of muscles. There are three main muscles in the arm.

The biceps brachii is a muscle with two heads that starts at the lower end of the deltoid muscle and inserts down to the elbow. Basic functions: Raise and bend your arms, rotate your wrists (palms turn down towards the orange bridge).

The triceps brachii is a muscle with three heads that moves in the opposite direction of the biceps brachii, which also originates at the lower end of the deltoid muscle and extends down to the elbow and below the elbow. Basic functions: Straighten your arms, rotate your wrists (palms up).

The forearm muscles include many different muscles located on the outside and inside of the forearm that control the movements of the hand and wrist.

Answer: In fact, the long head of the biceps in the dorsiflexor muscle group is longer than the short head. This is because the start point of the long head of the biceps is on the shoulder blades, while the start point of the vertical head of the shorts is on the humerus.

When the biceps muscles contract, the long head is pulled first, making it longer than the short head.

Explanation: The biceps is one of the flexor muscles of the elbow joint, and it consists of a long head and a short head. The long head begins at the humeral notch on the scapula, and the short head originates at the humeral condyle on the humerus.

The end of the biceps muscle abdomen is inserted into the radial ligament of the ulna. The main role of the biceps muscles is to flex the forearm as well as rotate the forearm. In addition, it assists in flexion and internal rotation of the shoulder joint.

Expansion: In addition to the biceps, the dorsiflexor muscles include the triceps and brachialis muscles. The triceps muscle consists of three points on the humerus and one insertion point on the ulna, and is mainly used to extend the forearm.

The brachii muscle, on the other hand, consists of two starting points on the humerus and an insertion point on the ulna, and is mainly used to rotate the forearm. The synergy of these muscles allows the arm to move more flexibly and freely in all directions.

The biceps brachii is the most prominent group of upper arm muscles in the human body, consisting of two parts: the long head and the short head. The long head of the biceps brachii originates in the area between the suprascapular notch and the inferior angle of the scapula, while the short head originates in the upper part of the humerus. The "long" in the name of the long head of the biceps refers to its termination in the forearm, not at the starting point.

Although the biceps brachii head starts in the upper part of the humerus, it is longer than the biceps biceps head of the biceps. This is because the biceps brachycephalic head has a connecting band across the upper arm backbone of the humerus, called the brachycephalic bridge. This attachment strap makes the length of the short head longer than the long head when actually measured.

So, although the biceps long head starts slightly higher than the short head, the short head is actually longer in length, so the two parts are not named according to the length of the length.

In addition, there are other differences in the anatomical structure of the long head and short head of the biceps brachii, which have different physiological functions and motor combustion characteristics. Both the biceps elbow and the brachycephalic head can be flexed at the elbow joint, but have different roles at the scapular joint: the long head is involved in flexion and abduction of the shoulder joint, while the short head is involved in internal rotation and horizontal abduction.

At the same time, when training the biceps, it is also necessary to pay attention to different training for different heads to achieve the best exercise effect.

The biceps muscles are mainly divided into two parts, the long head is more capable of generating force than the short head, but it is comparatively shorter in length and the short head is longer. In actual fitness training, if you want to increase the muscle mass of the biceps, you need to focus on exercising the long head, and at the same time, you need to strengthen the training of the short head to optimize the proportion and symmetry of the muscles. Therefore, if you only exercise the short head, the growth effect will be lower than that of the long head, because the length of the long head is short, and more targeted training methods are required to get better results.

1. Biceps.

The biceps is one of the upper arm muscles, located on the front side of the upper arm, with long and short biceps. The long head originates from the supraglenoid tuberosity of the scapula, the short head originates from the coracoid process of the scapula, and the short biceps converge in the middle of the humerus to form the muscular abdomen, descend to the lower end of the humerus, and integrate the tendon to terminate at the radial tuberosity and the tendon of the forearm.

2. Triceps.

It is also one of the upper arm muscles, located in the posterior group of the upper arm, and the three heads are the long head, the lateral head, and the medial head. The long head arises from the infraglenoid tuberosity of the shoulder blades; Both the lateral and medial heads arise from the dorsal surface of the humerus and descend, and the three heads continue to a tendon and end at the olecranon of the ulna. Cover the entire back of the humerus.

<> triceps brachii refers to the muscle group with the greatest strength and volume in the arm from below the scapula joint to the surface of the humerus. The starting point of the long head muscle is the upper side of the scapula, the lateral head is above the radial nerve groove of the humerus, and the medial head is below the medial side of the radial nerve groove, and the three form the triceps brachii muscle.