Cavernous sinus thrombosis Cavernous sinus thrombosis
Facial and Pterygoid plexus of v.
The lumbar plexus contains nerve fibers that innervate the leg, and the sacral plexus contains nerve fibers that innervate the foot. The lumbar plexus arises from the lower spinal cord levels, while the sacral plexus arises from the sacral spinal cord levels.
The femoral nerve is part of the lumbar plexus. It arises from the anterior divisions of the L2 to L4 spinal nerves. The lumbar plexus mostly innervates the lower limb muscles and skin.
The axillary nerve, which arises from the brachial plexus, is primarily responsible for innervating the deltoid muscle. It provides motor innervation to the deltoid muscle, controlling its function of shoulder abduction.
The nerve that control the larynx during breathing is the Vagus Nerve.
The phrenic nerve arises from the cervical plexus (C3-C5) and supplies the diaphragm, which is the primary muscle involved in breathing.
The phrenic nerve arises from the cervical plexus, specifically from nerve roots C3, C4, and C5. It travels down through the thorax to innervate the diaphragm, playing a crucial role in breathing.
The ulnar and median nerves arise from the brachial plexus. Specifically, the median nerve is formed from contributions of the lateral and medial cords of the brachial plexus, while the ulnar nerve primarily arises from the medial cord. Both nerves are crucial for motor and sensory functions in the arm and hand.
The phrenic nerve arises from the spinal cord at C3, C4, and C5 nerve levels. It originates from the cervical plexus and innervates the diaphragm muscle, playing a crucial role in controlling breathing.
Another name for the solar plexus is the celiac plexus or coeliac plexus.
The Ulnar nerve is located in the joint of the elbow. It is the largest unprotected nerve in the human body, therefore injuries are very common. It is also commonly referred to as the "Funny Bone".
The pectoralis minor muscle is innervated by the medial pectoral nerve, which arises from the medial cord of the brachial plexus (C8-T1).