chapter 24 Flashcards
Cutaneous supply of the posterior lower limb
1) Superior cluneal nerves
2) Middle cluneal nerve
3) Inferior cluneal nerve
4) posterior femoral cutaneous nerve
5) medial sural nerve
6) Lateral sural nerve
7) sural nerve
8) medial calcaneal branches
9) plantar digital branches of the medial and lateral plantar nerves
Superior cluneal nerve
origin:
Area supplied:
Origin: Lateral branches of the DORSAL rami of L1, L2, and L3
Area supplied: Skin of the superior 1/3rd of the gluteal region
Middle cluneal nerves
origin:
Area supplied:
origin: Lateral branches if the dorsal rami of S1, S2, and S3
Area supplied: Skin of the MIDDLE 1/3rd of the gluteal region
Inferior cluneal nerve
origin:
Area supplied:
origin: POSTERIOR femoral cutaneous nerve
Area supplied: Skin of the lower 1/3rd of the gluteal region
Posterior femoral cutaneous nerve
origin:
Area supplied:
origin: VENTRAL rami of S1, S2, and S3
Area supplied: Skin of the posterior thigh
Medial sural nerve
origin:
Area supplied:
origin: TIBIAL NERVE
Area supplied: Posterior aspect of the knee, medially
Lateral sural nerve
origin:
Area supplied:
origin: Common fibular (peroneal) nerve
Area supplied: Posterior aspect of the knee, LATERALLY
Sural nerve
origin:
Area supplied:
origin: Formed by the junction of the medial sural nerve and the FIBULAR communicating branch of the lateral sural cutaneous nerve
Area supplied: Posterior calf and proximal lateral foot
Medial calcaneal branches
origin:
Area supplied:
origin: TIBIAL NERVE
Area supplied: PROXIMAL portion of the plantar surface of the foot, medially and centrally
Plantar digital branches of the medial and lateral plantar nerves
origin:
Area supplied:
origin: TIBIAL NERVE
Area supplied: Distal portion of the plantar surface of the foot
Cutaneous supply of the anterior lower limb
1) Lateral femoral cutaneous nerve
2) Femoral branch of the genitofemoral nerve
3) Cutaneous branch of the obturator nerve
4) Anterior femoral cutaneous branches
5) Saphenous nerve
6) Superficial Fibular (peroneal) nerve
7) Deep fibular (peroneal) nerve
8) Digital branches of the medial and lateral plantar nerves
Lateral femoral cutaneous nerve
origin:
Area supplied:
origin: VENTRAL rami L2, and L3
Area supplied: Proximal lateral thigh anteriorly
Femoral branch of the genitofemoral nerve
origin:
Area supplied:
origin: Genitofemoral nerve
Area supplied: Proximal CENTRAL thigh, anteriorly
Cutaneous branch of the obturator nerve
origin:
Area supplied:
origin: ANTERIOR branch of the obturator nerve
Area supplied: Medial thigh
Anterior femoral cutaneous branches
origin:
Area supplied:
origin: FEMORAL nerve
Area supplied: Anterior thigh
Saphenous nerve
origin:
Area supplied:
origin: Femoral nerve
Area supplied: Anterior leg, medial leg, and medial foot
Superficial fibular (peroneal) nerve
origin:
Area supplied:
origin: Common fibular (peroneal) nerve
Area supplied: Anterior DISTAL leg, and Dorsum of the foot
Deep fibular (peroneal) nerve
origin:
Area supplied:
origin: COMMON fibular (peroneal) nerve
Area supplied: Skin between the 1st and the 2nd digits of the foot
Digital branches of the medial and lateral plantar nerves
origin:
Area supplied:
origin: TIBIAL NERVE
Area supplied: Distal portion of the dorsal surface of the foot
1) Which of the following statements is CORRECT?
a. The inferior cluneal nerves originate from the posterior femoral cutaneous nerve
b. The posterior femoral cutaneous nerve originates from the dorsal rami of S1,S2, and S3
c. The middle cluneal nerves supply the skin of the posterior thigh
d. The superior cluneal nerves originate from the lateral branches of the dorsal rami of L2, L3, and L4
a. The inferior cluneal nerves originate from the posterior femoral cutaneous nerve
2) Which of the following is correct?
a. The sural nerve supplies the distal lateral foot
b. The medial sural cutaneous nerve originates from the common fibular (peroneal) nerve
c. The sural nerve is formed by the junction of the medial sural cutaneous nerve and the common fibular nerve
d. Medial calcaneal branches originate from the tibial nerve
d. Medial calcaneal branches originate from the tibial nerve
3) Which of the following statements is INCORRECT?
a. The cutaneous branch of the obturator nerve originates from the posterior branch of the obturator nerve
b. The lateral femoral cutaneous nerve originates from the ventral rami of L2 an dL3
c. The distal portion of the plantar surface of the foot is supplied by plantar digital branches of the medial and lateral plantar nerves
d. The femoral branch of the genitofemoral nerve supplies the proximal central thigh, anteriorly
a. The cutaneous branch of the obturator nerve originates from the posterior branch of the obturator nerve
4) Which of the following statements is CORRECT?
a. The digital branches of the medial and lateral plantar nerves originate from the tibial nerve
b. The superficial fibular (peroneal) nerve supplies the skin between the 1st and 2nd digits of the foot
c. The saphenous nerve supplies the lateral leg and foot
d. The deep fibular nerve supplies the dorsum of the foot
a. The digital branches of the medial and lateral plantar nerves originate from the tibial nerve
5) Match each nerve to its correct origin:
a. Saphenous nerve :
b. Posterior femoral cutaneous nerve :
c. Inferior cluneal nerves :
d. Lateral femoral cutaneous nerve :
e. Medial sural cutaneous nerve :
1) Femoral nerve
2) Ventral rami S1,S2, and S3
3) Posterior femoral cutaneous nerve
4) Ventral rami of L2 and L3
5) Tibial nerve
