There are 12 pairs of spinal nerves that originate from the thoracic segments of the spinal cord. These nerves mainly supply the skin over the chest and intrinsic back muscles of the …

The long thoracic nerve (also: external respiratory nerve of Bell or posterior thoracic nerve) is a branch of the brachial plexus derived from cervical nerves C5-C7 that innervates the serratus …

May 7, 2025 · The thoracic nerves are twelve pairs of spinal nerves (T1–T12) that emerge from the thoracic segments of the spinal cord. They are part of the peripheral nervous system and …

The thoracic nerves, also referred to as thoracic spinal nerves, consist of 12 pairs (T1-T12) emerging below their corresponding thoracic vertebrae.

The thoracic spine has 12 nerve roots (T1 to T12) on each side of the spine that branch from the spinal cord and control motor and sensory signals mostly for the upper back, chest, and …

Dec 22, 2025 · Each spinal nerve pair exits the spinal cord between two adjacent vertebrae through the intervertebral foramen. Twelve of these nerve pairs, known as the thoracic spinal …

The thoracic nerves are a set of 12 pairs of spinal nerves that emerge from the thoracic region of the spinal cord. They play a crucial role in the peripheral nervous system, innervating the …

Thoracic nerves contribute to somatic functions, involving voluntary control and sensation. They provide motor innervation to the intercostal muscles, located between the ribs, which are …

Oct 30, 2023 · The long thoracic nerve is a motor nerve that provides innervation to the serratus anterior muscle. This muscle pulls the scapula anteriorly, allowing for anteversion of the arm, …

Nov 6, 2025 · The long thoracic nerve is a somatic motor nerve of the thoracic wall. It supplies innervation to the serratus anterior muscle.