Exam 3- Sacral Plexu Cont.

Question 1

The common fibular nerve is made up of fibers

Answer 1

L4-S2 and located more laterally

Question 2

The common fibular nerve gives off _____ branch in the tight before separating from tibial nerve fibers

Answer 2

One, the Biceps femoris (short head)

Question 3

Upon reaching the anterio-lateral aspect of the leg the tibial nerve gives off

Answer 3

An articular branch to the knee joint

Question 4

The lateral aural cutaneous nerve supplies the skin

Answer 4

On the lateral aspect of the leg

Question 5

The fibular communicating branch forms the

Answer 5

Sural nerve after combining with the medial sural cutaneous nerve

Question 6

What two branches combine to make the sural nerve

Answer 6

Fibular communicating branch

Medial sural cutaneous nerve

Question 7

The superficial fibular nerve travels inferior to the

Answer 7

Fibular is longus and the fibula down the dorsum of the foot

Question 8

What two muscles does the superficial fibular nerve supply

Answer 8

Fibularis longus

Fibularis brevis

Question 9

What does the superficial fibular nerve split into to supply the skin over the dorsum of the foot except for the first two toes

Answer 9

Medial dorsal cutaneous nerve

Intermediate dorsal cutaneous nerve

Question 10

The deep fibular nerve supplies what muscles

Answer 10

Tibialis anterior, extensor digitorum longus, extensor digitorum brevis, extensor hallucis longus, extensor halluces brevis, fibularis tertius

Question 11

What supplies the sensory aspect of the skin between the first two toes

Answer 11

Terminal branch of deep fibular nerve

Question 12

What fibers make up the tibial nerve

Answer 12

L4-S3

Question 13

What nerve is larger the tibial nerve or common fibular nerve

Answer 13

Tibial is larger

Question 14

What muscles are supplied by the common fibular and tibial nerves while combined

Answer 14

Biceps femoris (long head)
Semitendinosus
Semimembranosus
Adductor Magnus

Question 15

In the popliteal fossa the tibial nerve supples

Answer 15

Popliteus
Gastrocnemius (both heads)
Soleus
Plantaris

Question 16

The popliteal branch of the tibial nerve travels inferior to

Answer 16

The interosseous nerve of the leg

Question 17

What nerve carries sensory info from the tibial periosteum, ankle and tibiofibular joints

Answer 17

Interosseous nerve of the leg

Question 18

What 3 muscles does the tibial nerve supply in the leg

Answer 18

Flexor digitiorum longus
Flexor hallucis longu
Tibialis posterior

Question 19

The tibial nerve gives off branches to the leg via what branch

Answer 19

Medial calcaneal branches

Question 20

What does the medial calcaneal branches supply

Answer 20

The skin over the medial heel

Question 21

What is the passage of the tibial nerve in the foot?

Answer 21

Travels around the medial malleolus to the plantar surface of the foot and divides into two branches

Question 22

What are the two branches of the tibial nerve given off in the foot

Answer 22

Medial plantar nerve

Lateral plantar nerve

Question 23

What muscles does the medial plantar nerve supply

Answer 23

Abductor hallucis
Flexor digitorum brevis
Flexor hallucis brevis

Question 24

The medial plantar nerve then divides into the

Answer 24

Common plantar digital nerves

Question 25

What does the common plantar digital nerves supply?

Answer 25

Motor supply- to lumbricals 1 and 2

Sensory supply- skin between toes by way of Proper Plantar Digital nerves

Question 26

The lateral plantar nerve divides into a superficial and deep branch, which branch supplies the skin of the fifth digit

Answer 26

Superficial branch

Question 27

The deep branch of the lateral plantar nerve provides motor to

Answer 27

Adductor hallucis, flexor digiti minimi brevis, abductor digiti minimi, quadratus plantae, lateral lumbricals, interossei muscles

Question 28

What forms the coccygeal plexus

Answer 28

Anterior rami S4,S5 and Co1

Question 29

The coccygeal plexus gives rise to

Answer 29

The anococcygeal nerves that carry sensory info from the skin adjacent to the coccyx and anus