| nerves |
spinal roots |
structures served |
| Lesser Occipital |
C2, C3 |
sensory- posterolateral neck |
| Greater Auricular |
C2, C3 |
sensory- ear & parotid gland |
| Transverse cervical |
C2, C3 |
sensory- anterior & lateral neck |
| Supraclavicular |
C3, C4 |
sensory- shoulder & anterior chest |
| Ansa cervicalis |
C1- C4 |
motor- geniohyoid & infrahyoid muscles of neck |
| Segmental branches |
C1- C5 |
Motor- neck & scalenes, levator, trapezius, SCM |
| Phrenic |
C3, C4 & C5 |
motor- diaphragm |
| Femoral |
L2- L4 |
Sensory- thigh, leg, foot, hip, knee joints Motor- anterior thigh, psoas, pectineus, iliacus |
| Obturator |
L2-L4 |
Sensory- medial thigh & hip joint motor- adductors, gracilis & obturator externus |
| Lateral Femoral Cutaneous |
L2, L3 |
sensory- lateral thigh, branches to peritoneum |
| Iliohypogastric |
L1 |
sensory- lower abdomen, lower back & hip, anterlateral abdominal wall & pubic region |
| Ilioinguinal |
L1 |
sensory- external genitalia, thigh & abdominals |
| Genitofemoral |
L1, L2 |
sensory- scrotum, labia, thigh & cremasterics |
| Sciatic |
L4, L5, S1-S3 |
motor- tibial & common peroneal |
| Tibial |
L4-S3 |
sensory- posterior leg & foot motor- all muscles back of thigh, leg & foot |
| Common Peroneal |
L4-S2 |
sensory- anterior leg & dorsum foot motor- peroneals, tibialis ant., externsion of toe |
| Superior Gluteal |
L4, L5, S1 |
Motor- gluteus medius, minius & Tensor facia |
| Inferior Gluteal |
L5-S2 |
Motor- gluteus maximus |
| Posterior Femoral Cutaneous |
S1-S3 |
sensory- buttock, thigh, popliteal, calf & heel |
| Pudendal |
S2-S4 |
sensory- muscles of perineum motor- external anal sphincter |
Spanish 3
