Material Covered: Lower Extremity
Use the following letters to indicate your answer:
A: Only I is true
B: Only II is true
C: Both are true
D: Both are false
II. The ischiofemoral
ligament can be best seen from a posterior view.
2. I. The spiral arrangement of the ligaments
that make up the hip joint resists
medial rotation of the thigh.
II. The fibular collateral
ligament is a flat band of connective tissue.
3. I. Upon flexion of the leg, the lateral meniscus moves posterior.
II. The anterior cruciate
ligament prevents hyperflexion of the knee.
4. I. The navicular bone articulates with the cuboid bone in the foot.
II. The deltoid ligament
can be found on the medial side of the ankle.
5. I. The femoral artery can be found on the anterior surface of the adductor longus.
II. The gracilis muscle
can be found on the medial surface of the adductor magnus.
6. I. The sartorius muscle, which receives blood
from the deep femoral artery,
can flex the thigh and the leg.
II. The posterior fibers
of the adductor magnus, which receives its primary
innervation from the tibial nerve, can extend the thigh.
7. I. The pectineus muscle, which attaches to
the adductor tubercle, is innervated
by the femoral nerve.
II. Both the semimembranosus
and semitendinosus can medially rotate the
flexed leg.
8. I. The gluteus minimus, which attaches to
the greater trochanter and is innervated
by the superior gluteal nerve, can abduct the thigh.
II. The obturator externus,
which is innervated by the inferior gluteal nerve,
is attached to the trochanteric fossa.
9. I. The tibialis anterior is in contact with both the tibia and fibula.
II. The deep peroneal
nerve innervates the peroneus longus.
10. I. The peroneus tertius inserts on the proximal phalanx of the 5 digit of the foot.
II. The tibialis anterior,
which is innervated by the deep peroneal nerve,
can invert the foot.
11. I. Blood supply for the extensor digitorum longus is from the anterior tibial artery.
II. The peroneus longus,
which can evert the foot, inserts on the fifth metatarsal
of the foot.
12. I. The plantaris muscle originates
on the lateral condyle of the femur and inserts
on the medial malleolus.
II. Flexion of the
leg may involve the semimembranosus, semitendinosus, biceps
femoris, soleus, plantaris and gastrocnemius muscles.
13. I. Cutting the tibial nerve will result in loss of all ability to flex the toes.
II. The extensor digitorum
longus muscle can invert the foot.
14. I. The flexor digitorum longus attaches
to the tibia bone and passes posterior
to the lateral malleolus.
II. The quadratus plantae
muscle is deep to the flexor digitorum brevis muscle.
15. I. The abductor hallucis muscle is superficial to the flexor hallucis brevis muscle.
II. Looking at the
medial malleolus, the proper order of tendons from anterior to
posterior is: tibialis posterior, flexor digitorum longus and flexor hallucis
brevis.
16. I. The tendon of the peroneus tertius passes deep to the peroneal retinacula.
II. The lumbricals
of the foot extend the distal phalanges and flex the proximal
phalanges.
17. I. The abductor digiti minimi, which is
attached to the calcaneus bone, is
innervated by the lateral plantar nerve.
II. The flexor
digitorum brevis can flex the 5th digit of the foot.
18. I. Cutting the lateral plantar nerve will affect movement of the great toe.
II. The dorsal interossei
muscles abduct toes.
19. I. As part of the cruciate anastomosis,
the inferior gluteal artery anastomoses
with the medial femoral circumflex artery on the posterior side of the
femur.
II. In the cruciate
anastomosis, blood from the first perforating branch of the
femoral artery can flow to a femoral circumflex artery.
20. I. The descending genicular artery is connected to the medial superior genicular artery.
II. The femoral artery
becomes the popliteal artery at the adductor hiatus, which is
found in the adductor longus muscle.
21. I. The lateral edge of the femoral triangle
is formed by the sartorius muscle and
just inferior to the inguinal ligament the femoral artery is lateral to
the femoral vein.
II. The common peroneal
nerve is made of nerve fibers from L4-S3.
22. I. The lumbricals of the foot attach to the tendons of the flexor digitorum brevis.
II. The anterior tibial
artery can be found lateral to the tibia and medial to the fibula bones.
23. I. The posterior tibial artery ends on the
plantar side of the foot. It bifurcates
into the medial and lateral plantar arteries.
II. The deep plantar
artery is a branch of the anterior tibial artery.
24. I. Cutting L1-L3 would cause partial paralysis of the adductor magnus muscle.
II. The lumbar plexus
roots lie on the anterior surface of the psoas muscle.
25. I. The superior gluteal nerve and its branches
can be found on the deep surface
of the gluteus medius.
II. Part of the sciatic
nerve runs on the posterior side of the quadratus femoris
muscle and part of the sciatic nerve runs on the anterior surface of the
piriformis muscle.
| 1. B |
| 2. A |
| 3. A |
| 4. C |
| 5. C |
| 6. C |
| 7. B |
| 8. A |
| 9. D |
| 10 B |
| 11. A |
| 12. D |
| 13. A |
| 14. B |
| 15. A |
| 16. B |
| 17. C |
| 18. C |
| 19. A |
| 20. A |
| 21. A |
| 22. B |
| 23. A |
| 24. A |
| 25. C |