2023年11月3日 · The brachial plexus is a network of nerves that gives rise to all the motor and sensory nerves of the upper extremity. This plexus arises from the anterior rami of spinal nerves C5-T1 that undergo several mergers and splits into trunks and divisions, until they finally give rise to their terminal branches.

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). This plexus extends from the spinal cord , through the cervicoaxillary canal in the neck, over the first rib, and into the armpit , it supplies afferent and efferent nerve ...

2024年10月8日 · The brachial plexus is a network of nerve fibres that supplies the skin and musculature of the upper limb. It begins in the root of the neck, passes through the axilla, and runs through the entire upper extremity.

2024年11月2日 · The brachial plexus is a network of nerves that controls motor and sensory functions in the shoulder, arm, and hand. It originates from the spinal cord, specifically the C5 to T1 nerve roots, and can be organized into roots, trunks, divisions, cords, and branches, with major nerves like the musculocutaneous, radial, median, and ulnar nerves ...

2023年7月24日 · The brachial plexus is a major network of nerves transmitting signals responsible for motor and sensory innervation of the upper extremities, including the shoulder, arm, and hand. It originates from the ventral rami of C5 through T1 spinal nerves.[1][2][3][4] Proximally to distally, the brachial plexus is comprised of roots, trunks, divisions ...

2023年8月14日 · The brachial plexus provides somatic motor and sensory innervation to the upper extremity, including the scapular region. As the brachial plexus travels through the posterior triangle of the neck into the axilla, arm, forearm, and hand, it contains various named regions based on how the plexus is formed.

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28日 · The brachial plexus (plexus brachialis) is a somatic nerve plexus formed by intercommunications among the ventral rami (roots) of the lower four cervical nerves (C5-C8) and the first...

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10月3日 · The roots of the brachial plexus are formed by ventral rami of 5, 6,7, 8 cervical, and 1st thoracic spinal nerves. The roots of the median nerve are branches of the medial and lateral cords of the brachial plexus.