2022年1月9日 · The phrenic nerve controls your diaphragm (the large dome-shaped muscle between your abdominal and chest cavities). It’s essential to breathing. Your nerve sends signals that cause your diaphragm to contract (become thicker and flatter).

The phrenic nerve is a mixed nerve that originates from the C3–C5 spinal nerves in the neck. The nerve is important for breathing because it provides exclusive motor control of the diaphragm, the primary muscle of respiration.

The phrenic nerve controls the diaphragm, the dome-shaped muscle that is primarily responsible for breathing. Contraction of the diaphragm expands the lungs and draws air into them.

2023年9月19日 · These nerves innervate the diaphragm from its abdominal surface after they penetrate it. Sensory innervation (pain and proprioception) at the central tendinous part is innervated by the phrenic nerves, while the peripheral muscular portions are innervated by 6th to 11th intercostal nerves.

2024年9月13日 · Your phrenic nerves are the only nerves that control the diaphragm, the dome-shaped muscle that allows you to breathe in and out. Learn about their anatomy, function, and related medical conditions.

The phrenic nerve is among the most important nerves in the body due to its role in respiration. The phrenic nerve provides the primary motor supply to the diaphragm, the major respiratory muscle[1]. It passes motor information to the diaphragm and receives sensory information from it.

2024年2月2日 · The phrenic nerve, when damaged, can't send the right signals to your breathing muscles, resulting in diaphragm muscle paralysis, making it hard to breathe. Here’s how to spot phrenic nerve damage.

2025年2月13日 · The phrenic nerve is a bilateral, mixed nerve that originates from the cervical nerves in the neck and descends through the thorax to innervate the diaphragm. It is the only source of motor innervation to the diaphragm and therefore plays a crucial role in breathing.

2017年8月24日 · The diaphragm is innervated by the left and right phrenic nerves. The phrenic nerves arise from the 3rd through 5th spinal nerves. Spinal cord injury above the level of the third vertebrae can cause disruption of nerve impulses that travel from the brain to the phrenic nerves.

2025年1月16日 · The diaphragm, a dome-shaped muscle beneath the lungs, is the primary driver of inhalation. When the phrenic nerve stimulates it, the diaphragm contracts and moves downward, expanding the thoracic cavity and drawing air into the lungs. This mechanism showcases the importance of precise neural control in respiratory function.