noun. A type of chemical bond that is formed when the slightly positive hydrogen atom of a polar covalent bond forms an electrostatic link with the more electreonegative atom of a polar covalent bond in the same or another molecule.
In human anatomy, the biceps brachii (/ËbaÉªsÉps Ëbraeki.ËbrÃ¦ki/), aÉª commonly known as the, biceps is a-two headed muscle that lies on the upper arm between the shoulder and the. Elbow both heads arise on the scapula and join to form a single muscle belly which is attached to the upper. forearmn training the biceps brachii, it is important to distinguish between the long head and the short head of the biceps. The long head is the outer portion of the muscle. The short head is the inner portion of the muscle.
The brachialis (brachialis anticus) is a muscle in the upper arm that flexes the elbow joint.It lies deeper than the biceps brachii, and is a synergist that assists the biceps brachii in flexing at the elbow.It makes up part of the floor of the region known as the cubital fossa.he brachialis muscle is innervated by the musculocutaneous nerve, which runs on its superficial surface, between it and the biceps brachii. Part of it is also innervated by the radial nerve (proprioceptive branch) which allows it to be split during certain approaches to the arm.