Knee review Questions

1
Knee review Questions
2
In the middle of a collegiate rugby tournament a
player gets tackled just as he is kicking the
ball. He has all of his weight planted on his
left leg when another player clips him on one
side of his knee. He falls to the ground and
clutches his knee in pain. When the team
physician examines the knee he is able to elicit
abnormal side to side movement of the femur on
the tibia and abnormal forward motion of the
tibia on the femur (anterior drawer sign).
3
The forward motion is caused by damage to which
of the following ligaments
A) Oblique
popliteal ligament B) Patellar ligament

C) Anterior cruciate ligament
D) Posterior cruciate ligament
4
When diagnosing damage to the knee joint, it is
important to look at the three structures most
often damaged. These three structures, otherwise
known as the "unhappy triad" include the
A) Medial meniscus,
anterior cruciate ligamnet, tibial collateral
ligament
B) Lateral meniscus, posterior cruciate
ligament, fibular collateral ligament
C) Lateral
meniscus, oblique popliteal ligament, fibular
collateral ligament
D) Oblique popliteal ligament,
patellar ligament, anterior cruciate ligament
5
The knee joint is a hinge-joint involving the
articulation of the femur, tibia, and patella.
Since the femur and the tibia join at an angle,
the joint is mechanically weak. However, many
ligaments and tendons help strengthen and
stabilize it.
6
The tendons that strengthen and stabilize the
knee joint on the lateral side consist of all of
the following except A) Biceps femoris B)
Gastrocnemius C) Iliotibial tract D) Soleus
7
The tendons supporting the medial side of the
knee joint include the three which form the pes
anserinus. Which one of the following four
tendons is not part of the pes anserinus A)
Semitendinosus B) Sartorius C) Gracilis D)
Semimembranosus
8
A fourth year medical student did an elective
working with the camp pediatrician at a rural
camp in northern Maine. One day when a young boy
came down with a high fever the pediatrican gave
the child an intramuscular injection. In his
haste the physician plunged the needle into the
medial aspect of the boy's right gluteus maximus.
9
A few hours later the medical student observed
the boy walking to his cabin. He noticed that in
addition to appearing lethargic, the boy was
walking in a strange manner. He seemed to be
lifting his right foot unusually high and letting
it hang down while he walked. After examining the
boy the medical student realized that the boy's
unusual gait was a result of his inability to
dorsiflex and evert his right foot.
10
The medical student remembered that the nerve
that innervates the muscles wich are directly
responsible for dorsiflexion and eversion of the
foot is the A) Tibial nerve B) Deep peroneal
(fibular) nerve C) Sciatic D) Common peroneal

11
The muscles responsible for dorsiflexion of the
foot include the A) Tibialis Posterior B)
Tibialis Anterior C)Extensor Digitorum Longus
D) Two of the above. Both the Tibialis Anterior
and the Extensor Digitorum Longus dorsiflex the
foot
12
End of Section one!
13
Remembering the pediatrician's earlier IM
injection into the boy and considering the
symptoms, the third year student determined that
the damage from the injection must have occurred
to which nerve in the gluteal region A)
Obturator B) Superior gluteal C) Common
peroneal portion of the sciatic D) Inferior
gluteal
14
The name for this clinical condition is A)
Obturator syndrome B) Gluteus medius limp C)
Positive Trendelenberg sign D) Foot drop
15
On his 50th birthday a sedentary father of three
makes a personal resolution to exercise more and
to lead a healthier lifestyle. The next day,
eager to begin his new training regime he gets up
early and begins a three mile jog. Less than one
mile into the run, however, his leg muscles cramp
and he is forced to stop. Humbly, he walks home
wincing with the pain of every step.
16
The next day at his yearly exam the man tells his
physician of the pain in his legs upon exercise.
The physician commends him for his initiative but
warns him to start exercising at a slower pace.
He examines the man's legs and notes tenderness
along their anterior aspect. He tells the man
that the pain he is experiencing is most likely
caused by the swelling of his muscles upon
experiencing unusual exertion. The swelling
causes compression of the blood vessels and
subsequent lack of oxygen to the muscles.
17
The muscles most likely to lose oxygen and cause
this man's symptoms (Anterior Compartment
Syndrome) include all of the following except
A) Tibialis anterior B) Extensor digitorum
longus C) Extensor hallicus brevis D) Extensor
hallicus longus
18
The blood supply might be compromised in which of
the following arteries due to Anterior
Compartment Syndrome A) Anterior tibeal B)
Posterior tibeal C) Dorsal pedis artery D) Two
of the above. Both the Anterior tibeal and the
Dorsalis pedis artery might be compromised
19
In order to check and see if the nerve travelling
in the anterior compartment is damaged the
physician checks for sensory loss in A) The
area between the first and second toes B) The
area along the dorsum of the foot C) The area
along the lateral aspect of the fifth toe D) The
area between the fourth and fifth toes
20
A propane tank explodes during a medical school
4th of July barbeque and sends metal shrapnel
into one of the dinner guests. A large piece of
metal embeds itself in the student's left thigh.
The student is conscious but appears to be in
shock and is bleeding profusely from his femoral
artery.
21
The femoral artery travels within the adductor
canal (Hunter's Canal) to reach the popliteal
fossa. Which of the following muscles forms the
anterior lateral boundary of the canal? A)
Vastus lateralis B) Sartorius C) Vastus
medialis D) Adductor magnus
22
Which of the following travel within the adductor
canal? A) Femoral Vein B) Profunda Femoris
Artery C) Profunda Femoris Vein D) Two of the
above
23
The proximal part of the femoral artery is
enclosed within the femoral sheath, along with
the femoral vein. The femoral canal contains
lymph vessels, connective tissue and fat. In
relation to the vein and artery the femoral
canal A) Is lateral to the femoral vein and
medial to the femoral artery B) Is medial to the
femoral vein and lateral to the femoral artery
C) Is lateral to both the femoral vein and the
femoral artery D) Is medial to both the femoral
artery and the femoral vein
24
The End
25
Knee review Questions

• Answer Section

26
In the middle of a collegiate rugby tournament a
player gets tackled just as he is kicking the
ball. He has all of his weight planted on his
left leg when another player clips him on one
side of his knee. He falls to the ground and
clutches his knee in pain. When the team
physician examines the knee he is able to elicit
abnormal side to side movement of the femur on
the tibia and abnormal forward motion of the
tibia on the femur (anterior drawer sign).
27
The forward motion is caused by damage to which
of the following ligaments
A) Oblique
popliteal ligament B) Patellar ligament

C) Anterior cruciate ligament
D) Posterior cruciate ligament
28
When diagnosing damage to the knee joint, it is
important to look at the three structures most
often damaged. These three structures, otherwise
known as the "unhappy triad" include the
A) Medial meniscus,
anterior cruciate ligamnet, tibial collateral
ligament
B) Lateral meniscus, posterior cruciate
ligament, fibular collateral ligament
C) Lateral
meniscus, oblique popliteal ligament, fibular
collateral ligament
D) Oblique popliteal ligament,
patellar ligament, anterior cruciate ligament
29
The knee joint is a hinge-joint involving the
articulation of the femur, tibia, and patella.
Since the femur and the tibia join at an angle,
the joint is mechanically weak. However, many
ligaments and tendons help strengthen and
stabilize it.
30
The tendons that strengthen and stabilize the
knee joint on the lateral side consist of all of
the following except A) Biceps femoris B)
Gastrocnemius C) Iliotibial tract D) Soleus
31
The tendons supporting the medial side of the
knee joint include the three which form the pes
anserinus. Which one of the following four
tendons is not part of the pes anserinus A)
Semitendinosus B) Sartorius C) Gracilis D)
Semimembranosus
32
A fourth year medical student did an elective
working with the camp pediatrician at a rural
camp in northern Maine. One day when a young boy
came down with a high fever the pediatrican gave
the child an intramuscular injection. In his
haste the physician plunged the needle into the
medial aspect of the boy's right gluteus maximus.
33
A few hours later the medical student observed
the boy walking to his cabin. He noticed that in
addition to appearing lethargic, the boy was
walking in a strange manner. He seemed to be
lifting his right foot unusually high and letting
it hang down while he walked. After examining the
boy the medical student realized that the boy's
unusual gait was a result of his inability to
dorsiflex and evert his right foot.
34
The medical student remembered that the nerve
that innervates the muscles wich are directly
responsible for dorsiflexion and eversion of the
foot is the A) Tibial nerve B) Deep peroneal
(fibular) nerve C) Sciatic D) Common peroneal

35
The muscles responsible for dorsiflexion of the
foot include the A) Tibialis Posterior B)
Tibialis Anterior C)Extensor Digitorum Longus
D) Two of the above. Both the Tibialis Anterior
and the Extensor Digitorum Longus dorsiflex the
foot
36
Remembering the pediatrician's earlier IM
injection into the boy and considering the
symptoms, the third year student determined that
the damage from the injection must have occurred
to which nerve in the gluteal region A)
Obturator B) Superior gluteal C) Common
peroneal portion o fthe sciatic D) Inferior
gluteal
37
The name for this clinical condition is A)
Obturator syndrome B) Gluteus medius limp C)
Positive Trendelenberg sign D) Foot drop
38
On his 50th birthday a sedentary father of three
makes a personal resolution to exercise more and
to lead a healthier lifestyle. The next day,
eager to begin his new training regime he gets up
early and begins a three mile jog. Less than one
mile into the run, however, his leg muscles cramp
and he is forced to stop. Humbly, he walks home
wincing with the pain of every step.
39
The next day at his yearly exam the man tells his
physician of the pain in his legs upon exercise.
The physician commends him for his initiative but
warns him to start exercising at a slower pace.
He examines the man's legs and notes tenderness
along their anterior aspect. He tells the man
that the pain he is experiencing is most likely
caused by the swelling of his muscles upon
experiencing unusual exertion. The swelling
causes compression of the blood vessels and
subsequent lack of oxygen to the muscles.
40
The muscles most likely to lose oxygen and cause
this man's symptoms (Anterior Compartment
Syndrome) include all of the following except
A) Tibialis anterior B) Extensor digitorum
longus C) Extensor hallicus brevis D) Extensor
hallicus longus
41
The blood supply might be compromised in which of
the following arteries due to Anterior
Compartment Syndrome A) Anterior tibeal B)
Posterior tibeal C) Dorsal pedis artery D) Two
of the above. Both the Anterior tibeal and the
Dorsalis pedis artery might be compromised
42
In order to check and see if the nerve travelling
in the anterior compartment is damaged the
physician checks for sensory loss in A) The
area between the first and second toes B) The
area along the dorsum of the foot C) The area
along the lateral aspect of the fifth toe D) The
area between the fourth and fifth toes
43
A propane tank explodes during a medical school
4th of July barbeque and sends metal shrapnel
into one of the dinner guests. A large piece of
metal embeds itself in the student's left thigh.
The student is conscious but appears to be in
shock and is bleeding profusely from his femoral
artery.
44
The femoral artery travels within the adductor
canal (Hunter's Canal) to reach the popliteal
fossa. Which of the following muscles forms the
anterior lateral boundary of the canal? A)
Vastus lateralis B) Sartorius C) Vastus
medialis D) Adductor magnus
45
Which of the following travel within the adductor
canal? A) Femoral Vein B) Profunda Femoris
Artery C) Profunda Femoris Vein D) Two of the
above
46
The proximal part of the femoral artery is
enclosed within the femoral sheath, along with
the femoral vein. The femoral canal contains
lymph vessels, connective tissue and fat. In
relation to the vein and artery the femoral
canal A) Is lateral to the femoral vein and
medial to the femoral artery B) Is medial to the
femoral vein and lateral to the femoral artery
C) Is lateral to both the femoral vein and the
femoral artery D) Is medial to both the femoral
artery and the femoral vein
47
The End