Sacral Plexus Motor and Sensory Innervation

Question 1

SUPERIOR GLUTEAL

Answer 1

MOTOR
- GLUTEUS MEDIUS
- GLUTEUS MINIMUS
SENSORY?

Question 2

INFERIOR GLUTEAL NERVE

Answer 2

MOTOR

- GLUTEUS MAXIMUS

Question 3

OBTURATOR INTERNUS NERVE

Answer 3

MOTOR
- OBTURATOR INTERNUS
- SUPERIOR GEMELLUS
SENSORY?

Question 4

POSTERIOR CUTANEOUS

Answer 4

SENSORY

• POSTERIOR INFERIOR BUTTOCKS
• POSTERIOR THIGH
• POPLITEAL REGION
• SKIN OF CALF
• HEEL JOINT

Question 5

SCIATIC NERVE - ANTERIOR DIVISION

TIBIAL

Answer 5

GETS ITS BRANCHES FROM L5-S3
MOTOR
- BICEPS FEMORIS (LONG HEAD ONLY)
- SEMITENDINOSUS
- SEMIMENBRANOSUS
- ADDUCTOR MAGNUS
- POPLITEUS
-PLANTARIS
- TIBIALIS POSTERIOR
- FLEXOR DIGITORUM LONGUS
- FLEXUS HALLUCIS LONGUS
- GASTROCNEMIUS
- SOLEUS
- INTRINSIC MUSCLES OF FOOT
SENSORY
- POSTERIOR LEG AND SOLE OF FOOT

Question 6

SCIATIC NERVE - POSTERIOR DIVISION

COMMON FIBULAR NERVE

Answer 6

GETS ITS BRANCHES FROM L4-S2
MOTOR
- BICEPS FEMORIS (SHORT HEAD)
- FIBULARIS BREVIS
- FIBULARIS LONGUS
- EXTENSOR HALLUCIS LONGUS
- EXTENSOR DIGITORUM LONGUS
- TIBIALIS ANTERIOR
SENSORY
- LATERAL ASPECT OF THIGH, KNEE, CALF

Question 7

NERVE TO PIRIFORMIS

Answer 7

MOTOR

- PIRIFORMIS

Question 8

PUDENDAL

Answer 8

MOTOR
- EXTERNAL ANAL SPHINCTER
- EXTERNAL URETHRAL SPHINCTER
SENSORY
- SCROTUM
- PENIS
- PERINEUM
- CLITORIS
- LABIA MAJORA
- MONS PUBIS

Question 9

COCCYGEAL PLEXUS

Answer 9

SENSORY

- SKIN AROUND COCCYGEAL REGION