The biceps brachii muscle is one of the head or chief muscles of the arm.
It gets its name from its two heads that meet in one unique distal body, describing the
the unusual structure of the muscle.
The Biceps brachii is one of the main muscles of the upper arm that works in the shoulder
blades and left joint. It is also found in its name which consists of two parts (heads).
Structure of biceps brachii
The biceps are one of the three muscles in the outer part, as well as the brachialis muscle
and the coracobrachialis muscle, where the biceps share the nerve supply. The biceps
muscle has two heads, a short head and a long head, separated from the origin of the
coracoid process and the supraglenoid tubercle of the scapula, respectively. From where it
originates in the glenoid, the long head remains inclined as it passes where it meets the
shoulder and the store with humt.
Extending from its origin to the coracoid, the short-headed
tendon acts close to the coracobrachialis tendon as a conjoint tendon. Unlike other
muscles in the outer part of the arm, the biceps muscle breaks off the two joints, the
shoulder joint, and the elbow joint.
Both biceps head joints join the upper middle arm to form a single muscle. muscle usually
adjacent to the deltoid implant to form a normal muscle mass, although a few anatomic
studies have shown that muscle fibers always have different structures without connecting
fibers. As the muscle rises in the distance, both heads rotate 90 degrees apart before being
inserted into the radial tuberosity. The short head inserts the far into the tube while the long
head inserts near the tuber. Particular aponeurosis, also called lacertus fibrosis, is a coscial
flexor group that adjusts to the musculotendinous joint of the biceps and illuminates and
attaches to the inner part of the antebrachial fascia.
A tendon attached to the radier tuberosity partially or completely surrounded by a bursa, an
internal bursaitor, which ensures a contrasting movement between the biceps tendon and
the proximal radius during the articulation and forearm placement.
The two muscles lie beneath the biceps brachii. These are the coracobrachialis muscles,
similar to the biceps that attach to the coracoid scar tissue, as well as the brachialis muscle
that connects the ulna and the medial humerus. Apart from those, the brachioradialis
tissues are close to the biceps and also attach to the radius bone, or are farther away.
The main functions of the biceps brachii are the flexibility of the elbow and forearms. In fact, it is
the prime mover of forearm supination.
As it crosses gleno-humeraljoy, it also helps to support shoulder height.
At various angles of the elbow, the biceps brachii act differently in moving to the upper
limb(a major appendage of human or animal, used for locomotion)
The biceps brachii is of two heads and they both originate from the shoulder bone.
Short Head: the greatest point of the coracoid process of the shoulder bone(scapula).
Long Head: Supra-glenoid tubercle of the shoulder bone( scapula).
Exercise to build strong biceps brachii
- STANDING BARBELL CURL
- CONCENTRATION CURL
- EZ-BAR PREACHER CURL
- DUMBBELL PREACHER CURL
- STANDING RESISTANCE BAND HAMMER CURL
- STANDING DUMBBELL CURL
- SPIDER CURL
- HAMMER CURL
- DECLINE DUMBBELL CURL
- INCLINE DUMBBELL CURL
Clinical note :
In physical examination, ropes play an important role. This provides an orientation to the
pulmonary artery palpation. Thus the artery is pushed at the fingertip against the terminal in
the medial bilateral cavity. It also acts as a reference muscle for the C5 and C6 nerve roots.
In this test the biceps reflex insertion ligament is struck and tested with a hammer, thus
activating the contraction of the muscle.
Due to the close relationship between the long cord ligament and the rotator cuff,
inflammatory and degenerative processes often affect each other. The most common side
effect is a sore throat or biceps tendinitis. A ligament ulcer is characterized by damage to the
biceps girdle complex, causing the long biceps ligament to be unprotected in the shoulder
joint, causing it to leak out of the intertubular sulcus.
Biceps tendinitis is an inflammation of the long biceps tendon, often caused by bursitis or
other tendinitis involving the rotator cuff, very rarely with overuse. In severe cases, even the
ligament may rupture completely (biceps tendon rupture).
Embryology and history:-
The biceps brachii it comes from the Latin musculus, “little mouse”, because the appearance
of the flexed biceps resembles the back of a mouse. A similar situation occurs in Greek,
where μῦς, mȳs, means both “mouse” and “muscle”.
biceps brachii is a Latin word meaning “two-headed arm”, in reference to the fact that a
muscle consists of two muscle bundles, each with its own origin, sharing a common point of
implantation near the joint. The correct form for the plural Latin adjective is the band
[required quotation], a form that can be used in general English. Instead, the biceps are
used both in and out of the range (e.g., when referring to both arms).
The English version of the bicep [sic], proven since 1939, is a background design based on
the misinterpretation of the biceps as the English plural marker -s. While they are common
even in professional settings, they are sometimes considered inappropriate.
Leonardo da Vinci expressed the original idea of the biceps acting as a superintendent in a
series of annotated maps. The principle of the biceps as a supervisor and its role as a flexor
to the elbow were designed. However, this function has not been discovered by the medical
community since Da Vinci is not considered an anatomical author, nor have his results been
made public. It was not until 1713 that the movement was rediscovered by William Cecilton
and later recorded for the medical community.
It was rewritten several times by different
authors who wanted to provide information to different audiences. The most notable recent
extension of Cheltenham’s records was written in 1867 by Quilm Duchenne in the journal
Physiology of Motion. To this day it is one of the most important references to the further
action of the biceps Prachi.