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The cervical plexus is composed of axons from spinal nerves C 1 through C 5. It branches into nerves in the posterior neck and head as well as the phrenic nerve, which connects to the diaphragm at the base of the thoracic cavity. Figure 12.4.5 12.4. 5: Nerve Plexuses of the Body.
Like the heart, lungs, and stomach, the nervous system is made up of specialized cells. These include nerve cells (or neurons) and glial cells (or glia ). Neurons are the basic functional units of the nervous system, and they generate electrical signals called action potentials, which allow them to quickly transmit information over long distances.
Her nerves were stretched to breaking point. His nerves jangled every time the phone rang. I had an attack of nerves just before I went on stage. I'm not sure my nerves can stand another night like this. I've never suffered from first-night nerves. It gave me time to calm my jittery nerves before meeting her. He lay awake, his nerves throbbing.
15 de abr. de 2022 · Autonomic nerves. These nerves control the involuntary or partially voluntary activities of your body, including heart rate, blood pressure , digestion, and temperature regulation. Motor nerves .
Nerves definition: the imagined source of emotional control. See examples of NERVES used in a sentence.
Figure 13.3.1 – Nerve Plexuses of the Body: There are four main nerve plexuses in the human body. The cervical plexus supplies nerves to the posterior head and neck, as well as to the diaphragm. The brachial plexus supplies nerves to the arm. The lumbar plexus supplies nerves to the anterior leg.
31 de may. de 2023 · They each emerge separately from the brain stem, which is the lower part of the brain that links the brain with the spinal cord. Each cranial nerve has a specific set of functions. Some of the cranial nerves control sensation, some control muscle movement, and some have both sensory and motor effects. Several of the cranial nerves run through ...
