Dermatomes Flashcards
L1, L2, L3, L4
Anterior & inner surface of lower limbs
L4, L5, S1
Foot
L4
Medial side of great toe
S1, S2, L5
Posterior and outer surface of lower limbs
S1
Lateral margin of foot and little toe
S2, S3, S4
Perineum
T10
Umbilicus
T12
Inguinal or groin regions
C5
Clavicles
C5, C6, C7
Lateral parts of upper limbs
C8, T1
Medial sides of the upper limbs
C6
Thumb
C6, C7, C8
Hand
C8
Ring, little fingers
T4
Nipples
Sensory Innervation of the face
- Cranial Nerve V (Trigeminal)
V1 nerve
Opthalmic Nerve
* sensory to nose, paranasal sinuses, upper face, eyelids
V2 Nerve
Maxillary Nerve
* sensory to middle 1/3 of face & upper teeth
* sensory input for lower eyelids, cheeks, nostrils, upper lip
V3 nerve
Mandibular nerve
* lower jaw, lower teeth, lower lip, part of the tongue.
Surgery: Peri-anal/anal surgery
“saddle block”
Dermatomes: S2-S5
Surgery: Foot/Ankle
Dermatomes: L2
Surgery: Thigh/lower leg/knee
Dermatome: L1
Surgery: Vaginal Delivery/uterine/hip procedure/tourniquet/TURP
Dermatome: T10
Surgery: Scrotum
Dermatome: S3
Surgery: Penis
Dermatome: S2
Surgery: Testicular Procedure
Dermatome: T8
Surgery: Urologic/GYN/lower abdominal
Dermatome: T6
Surgery: Cesarean section/upper abdominal
Dermatome: T4
