HumanNervesSpinalTrunk

Human Spinal Trunk Nerves

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This page is intended to list thoracic spinal cord nerves of biological human, which connect mind to human limbs and visceral organs.

Coverage verified by:

• http://medical-dictionary.thefreedictionary.com/nerve (name base)
• http://www.oluwoleogunranti.com/course/course1/nerves (MA reference)

CERVICAL, THORACIC, LUMBAR AND SACRAL - TRUNK MOTOR NERVES

(generated)

• motor nuclei/ganglia*:
• Posteromedial Nucleus,LPC.SC.VH.PM; NERVES={first intercostal nerve; motor nerves of back, flexors; subcostal nerve, motor; thoracic and thoracicoabdominal intercostal nerves, flexors; thoracic intercostal nerves, extensors}
• Ventromedial Nucleus,LPC.SC.VH.VM; NERVES={motor nerves of back, extensors; thoracicoabdominal intercostal nerves, extensors}

• sensory nuclei/ganglia*:

• nerves*: nerves:
• first intercostal nerve (small branch); DISTRIBUTION={1st rib}; MODALITY={flexor motor}; FIBERS={GSE:Posteromedial Nucleus,LPC.SC.VH.PM -> Trunk,TARGET.TEA.TRUNK}
  • 
• posterior ramus, motor; MODALITY={flexor motor, extensor motor}
  • 
  • motor nerves of back, extensors; DISTRIBUTION={longissimus muscle, multifidus muscle, semispinalis, levatores costarum muscles, interspinales muscles, intertransversarii muscle}; MODALITY={extensor motor}; MUSCLES={[- interspinales muscles] - aid in extension and rotation of vertebral column; [- intertransversarii muscle] - aid in lateral flexion of vertebral column; acting bilaterally, stabilize vertebral column; [- levatores costarum muscles] - elevate ribs, assisting respiration; assist with lateral flexion of vertebral column; [- longissimus muscle] - extends spine; [- multifidus muscle] - stabilizes vertebrae in local movements of vertebral column; [- semispinalis cervicis] - extends and rotates the head to the contralateral side and also extends the ribs; [- semispinalis dorsi (thoracis)] - extends vertebral column}; FIBERS={GSE:Ventromedial Nucleus,LPC.SC.VH.VM -> Trunk,TARGET.TEA.TRUNK}
  • motor nerves of back, flexors; DISTRIBUTION={iliocostalis muscle, spinalis muscle, rotatores muscles}; MODALITY={flexor motor}; MUSCLES={[- iliocostalis muscle] - extends and lateral flexes spine; [- rotatores muscles] - facilitates the unilateral rotation and bilateral extension of the spine; [- spinalis muscle] - lateral flexion of spine}; FIBERS={GSE:Posteromedial Nucleus,LPC.SC.VH.PM -> Trunk,TARGET.TEA.TRUNK}
• subcostal nerve, motor (MA:[NERVE]); MODALITY={flexor motor}; MUSCLES={[- abdominal internal oblique muscle] - compresses abdomen and rotates vertebral column; [- pyramidalis muscle] - tensing the linea alba}; FIBERS={GSE:Posteromedial Nucleus,LPC.SC.VH.PM -> Trunk,TARGET.TEA.TRUNK}
  • 
• thoracic and abdominal intercostal nerves; MODALITY={flexor motor, extensor motor}
  • 
  • thoracic and thoracicoabdominal intercostal nerves, flexors; DISTRIBUTION={rectus abdominis; external intercostal muscles; serratus posterior superior muscle}; MODALITY={flexor motor}; MUSCLES={[- sternalis muscle] - protract and stabilize scapula, assists in upward rotation; [- abdominal external oblique muscle] - rotates torso; [- external intercostal muscles] - aid in quiet and forced inhalation; [- rectus abdominis muscle] - flexion of trunk/lumbar vertebrae; [- serratus posterior superior muscle] - elevate the ribs which aids in inspiration}; FIBERS={GSE:Posteromedial Nucleus,LPC.SC.VH.PM -> Trunk,TARGET.TEA.TRUNK}
    • 
  • thoracic intercostal nerves, extensors; DISTRIBUTION={semispinalis dorsi (thoracis); transversus thoracis muscle; subcostalis muscle}; MODALITY={extensor motor}; FIBERS={GSE:Posteromedial Nucleus,LPC.SC.VH.PM -> Trunk,TARGET.TEA.TRUNK}
  • thoracicoabdominal intercostal nerves, extensors; ORIGIN={T7-T11}; DISTRIBUTION={internal intercostal muscles, serratus posterior inferior}; MODALITY={extensor motor}; MUSCLES={[- internal intercostal muscles] - aid in forced expiration; [- serratus posterior inferior muscle] - depress the lower ribs, aiding in expiration; [- subcostalis muscle] - synergist in aiding the internal intercostal muscles with forced exhalation; [- transversus abdominis muscle] - compress the ribs and viscera, providing thoracic and pelvic stability; [- transversus thoracis muscle] - depresses the ribs; aids in exertional expiration by decreasing the transverse diameter of the thoracic cage}; FIBERS={GSE:Ventromedial Nucleus,LPC.SC.VH.VM -> Trunk,TARGET.TEA.TRUNK}