2023年11月3日 · Finally, the brachial plexus gives rise to five main terminal branches that are responsible for the most of motor and sensory innervation of the upper limb, and they include the musculocutaneous, axillary, radial, median and ulnar nerves.

2024年10月8日 · The roots of the brachial plexus are formed by the anterior rami of spinal nerves C5-T1 (the posterior divisions innervate the skin and musculature of the intrinsic back muscles). After their formation, these nerves pass between the anterior and medial scalene muscles to enter the base of the neck.

The brachial plexus is a network of nerves (nerve plexus) formed by the anterior rami of the lower four cervical nerves and first thoracic nerve (C5, C6, C7, C8, and T1).

2024年7月25日 · The brachial plexus is a complex neural network formed by lower cervical and upper thoracic ventral nerve roots which supplies motor and sensory innervation to the upper limb and pectoral girdle. It is located in the neck extending into the axilla posterior to the clavicle.

The brachial plexus is responsible for cutaneous and muscular innervation of the entire upper limb, with two exceptions: the trapezius muscle innervated by the spinal accessory nerve (CN XI) and an area of skin near the axilla innervated by the intercostobrachial nerve.

2024年11月2日 · The brachial plexus is a network of nerves that begins at the base of the neck, passes through the armpit (axilla), and extends into the arm. It originates from five spinal "roots"—C5, C6, C7, C8, and T1—which merge and then separate into five main nerve branches.

2024年10月28日 · The brachial plexus supplies all the cutaneous innervation of the upper limb, except for the area of the axilla (which is supplied by the supraclavicular nerve) and the dorsal scapula...

2025年1月20日 · The brachial plexus is a complex network of nerves that originates in the neck and provides motor and sensory innervation to the upper limb, including the shoulder, arm, forearm, and hand. Its formation involves the lower four cervical nerves (C5-C8) and the first thoracic nerve (T1), with occasional contributions from C4 or T2.

2024年10月3日 · It supplies the muscles, joints, skin, and blood vessels of the anterior wall of the thorax, scapular region, and upper limb. It is formed by ventral divisions of C5, C6, C7, C8, and T1. 1. Formation of brachial plexus: It may be fixed in two ways. Prefixed: The contribution of C4 is large, and T2 is often absent.

The brachial plexus is a complex network of nerves that supplies motor and sensory innervation to the upper limb. Its intricate anatomy is critical for understanding various clinical conditions and performing surgical interventions.