thorasic spinal nerves innervate which muscles?
336847
There are twelve pairs of thoracic spinal nerves.\nThe intercostal muscles, the muscles of the thorax (pectoralis major and minor, latissimus dorsi, etc.), and the paraspinal, psoas, abdominal and oblique muscles.   The upper thoracic spinal nerves are also part of the brachial plexus, which innervates the arms.
772231
Your spine is has 24 individual bones. Each separated by an invertible disc. From the top down there are 7 cervical vertebrae, 12 thoracic vertebrae, connected to the ribs, and 5 lumbar vertebrae.
397124
You're really asking a lot here.  The "cervical" triangle can refer to a lot of things.  The most obvious triangles are the anterior and posterior ones.  Anterior bounded by midline of neck, sternocleidomastoid m., and mandible.  Carotid a. and internal jugular v. pass through here.  Posterior bounded by sternocleidomastoid m., clavicle, and trapezius m.  Brachial plexus passes through here.  Both the anterior and posterior triangles can be sub-divided into smaller triangles--I'll list them, but I won't detail them.  Anterior can be divided into muscular, carotid, submandibular, and submental triangles.  Posterior can be divided into occipital and omoclavicular triangles.\n\nFemoral triangle is bounded by the inguinal ligament, sartorius m., and adductor longus m.  Femoral n., a., and v. pass through here.\n\nAbbreviations I used:\na. = artery\nv. = vein\nn. = nerve\nm. = muscle
844570
Plesse go to this website \n\nhttp://www.umm.edu/spinecenter/education/anatomy_and_function_of_the_spine.html
664381
Head, thorax, abdomen. If you are in med school, this might not be the best place to get the answer.
360558
Sympathetic:\n\nDivision: Preganglionic neurons in spinal cord\n\nAutonomic outflow from the thoracic and high lumbar segments of the spinal cord\n\nGenerally excitatory in action\n\nHeart: increases rate\nAdrenal glands: stimulates secretion\nLiver: increases glucose output\n\nParasympathetic:\n\nDivision: Fibers leave through cranial nerves and sacral segments of spinal cord \n\nAutonomic outflow from the cranial nerves, low lumbar and sacral spinal cord\n\nGenerally inhibitory in action\n\nBronchi: causes constriction\nSalivary glands: increases secretion\nHeart: decreases rate\n\n\nI don't quite know what you mean by receptors and subdivisions, however. The ANS controls most involuntary organs in the body, and any organ that is controlled by the ANS must have receptors for it to act upon. Is the reference to epinepherine and norepinepherine receptors, or something else?
503233
It does sound like your back. Typically a pinched nerve in the mid thoracic area will affect an organ or nerve ending creating some pain. I would first get some deep tissue massage done on that area and see if it relieves some of your discomfort. Sometimes an imbalance in muscles will pinch those nerves in the spine. If it doesn't relieve it I would get a different opinion to find out what is going on.
337565
muscle that pumps blood
611746
inevated by branches of the ansa cervicalis and the spinal accessory nerve from 3rd & 4th cervical roots;
875531
Pressure on the phrenic nerve.
743441
Well you did not describe what you do during these fights, since they are not physical, do you do a lot of screaming and heavy breathing? If so it may be that you have thoracic outlet syndrome. This is a general condition that affects the brachial plexus or the group of nerves that enters the arm. These nerves go between muscles in the neck, and go behind the collarbone in order to from the spine to the arm. In this condition your movements, or heavy breathing, and increased intra-thoracic pressure from screaming and breathing is pinching the nerves as they go from the neck to the arm. This is not an uncommon condition. If it progresses to where you feel numbness when you are not fighting but relaxing, you may want to have your neck checked for a disc problem. And if you keep fighting, you may want to seek profession counseling.
226238
If you mean spinal cord ( Backbone ) yes
685272
There's no such thing as a cyadic muscle. I think you're probably talking about the SCIATIC NERVE which is a large nerve which supplies muscles all down the back of your leg.\n\nThe sciatic nerve is made up of lots of nerve fibres which come out of the spinal column through very small gaps. Sometimes, they get irritated coming through the gaps, which leads to so called "sciatica" - a pain which extends from the buttocks down the back of the legs, right down to the foot. The best way to check if you have an irritated nerve is to lie on your back, and raise one leg as high as you can, then pull your foot back towards you. If you get pain in your back, it's probably the nerve which is affected. If you get pain down the back of your knee, it's not nerve related, it's just the muscles.
410329
Ok, Franko got it started-The action potential is propagated along the sensory axons, through the ulnar or other nerve (depending on exactly what part of your hand touched the stove), through the dorsal root ganglia (which is where the cell bodies for the sensory axon live) to the spinal cord.  There, they will release neurotransmitters at synapses with secondary sensory dendrites and cell bodies (which will send a signal on up the spinal cord to the brain) In addition, they will release neurotransmitters at synapses with interneurons, which synapse with motor neurons.  There motorneurons send axons to a number of muscles, such as the bicep.  A signal is generated at the motorneuron, sent down the axon, which then terminates on motor end-plates, which stimulate the muscle to contract, and thus pull the hand away.
807217
It is the peripheral nervous system.  It is a system of nerves that are outside the brain and spinal cord (the ones that extend into your arms and legs and into your chest and abdomen).
633434
During muscle contraction the strands of collagen are stretched as the muscle shortens. This stretching deforms the terminals of the Ib afferent axon, opening stretch-sensitive cation channels. As a result, the axon is depolarized and fires nerve impulses up to the central nervous system via the spinal cord. The action potential frequency signals the force being developed within the muscle.\n\nThis sensory feedback plays an important role in spinal reflexes and in the central control of muscle contraction. Specifically, it is postulated that because a Golgi tendon organ exists in serial connection with muscle fibers, it can measure the tension that each muscle contraction builds up. The Ib afferent axon synapses with interneurons within the spinal cord and also relays information to the brain. One of the main spinal reflexes receiving an input from the Ib afferent is the autogenic inhibition reflex, which is involved with the regulation of the force profile of on-going muscle contractions.\n\nThe ascending pathways to the cerebellum are the dorsal and ventral spinocerebellar tracts and are involved in the cerebellar regulation of movement.
652396
The main extrinsic controls of the heart are nervous innervations. There are several. One is known as the Baroreceptor reflex, where stretch-sensitive receptors in the aorta and coratid arteries sense stretch, and eventually inhibit the Rostroventral Lateral Medulla. the RVLM is responsible for speeding up the heart, but when inhibited, the RVLM no longer sends exitatory transmittions to the heart (via adrenergic nerves, such as the glossopharyngeal) and the heart rate decreases. Another reflex is the chemoreceptor reflex, whereby receptors in the carotid bodies sense concentration of oxygen, hydrogen and Carbon Dioxide. when O2 is high, heart rate is low, but when O2 is low and CO2 and H are high heart rate increases to avoid hypoxia and ischemia. Most nerves that innervate the heart do so at the Nodal Tissues. Nodal tissue has the ability to self-depolarize, and is responsible for the INtrisinc control of the heart. this tissue is caused to depolarize (and thereby cause a contraction) more or less frequently depending on the stimulation provided. Cholinergic nerves like the Vagus (cranial nerve ten or X) slow the heart via ACh, but Adrenergic nerves speed the heart rate via Epinephrine (Adrenaline). hope this helps.