Group 15 and 16 were assigned a practical on stifle joint anatomy and spot questions. The document included diagrams of the medial and cranial views of the stifle joint labeling key structures. It also included 5 spot questions testing identification of ligaments and muscles as well as their functions, origins, insertions, and clinical significance. The questions covered the cranial cruciate ligament, patellar ligament, collateral ligaments, and quadriceps muscle.

1. Group 15 and 16: CAT 7
Assignment
Stifle Joint Anatomy + Spot Practical
Style Question
Calum MacLeod, Shun Jing Tan, Amanda
Root, Louise Shaw, Charlie Adams, Katy
Baker, Claire Diamond

2. Medial View of Stifle Joint
Patella
Medial
collateral
ligament
Patellar
ligament

3. Cranial View of Stifle Joint
Patellar
ligament
Patella
Note: Patellar ligament
originate from Quadriceps
proximally, crosses patella, and
inserts on Tibial Tuberosity.

4. Cranial View of Hyperextended Stifle Joint
(Patellar ligament displaced medially)
Medial
ridge of
trochlea
Femur
Tibia
Lateral ridge
of trochlea
Trochlear
Groove
Medial
condyle of
femur
Lateral
condyle of
femur
Patella
Tendon of origin
Long Digital
Extensor
(present only on
lateral aspect)
Cranial cruciate
ligament
Caudal cruciate
ligament
Lateral Medial

5. Practical Style Spot Questions~
Question 1
a) Identify the ligament
marked by the arrow.
b) List 2 functions of this
ligament.
c) What can occur if this
ligament is ruptured?
(Signs/symptoms)
d) How do you determine
the rupture of this
ligament clinically?

6. Practical Style Spot Questions~
Question 2
a) Identify the ligament
marked by the arrow.
b) Is this ligament on the
lateral or medial aspect
of the stifle?

7. Practical Style Spot Questions~
Question 3
a) Identify the ligament
marked by the arrow.
b) State the origin, route
and insertion of this
ligament.
c) What other structures
in the stifle joint
provide stability to the
patella?

8. Practical Style Spot Questions~
Question 4
a) Identify the ligament
marked by the arrow.
b) Together with the
______ _______
ligament on the lateral
aspect , these two
structures provide
_____ to the stifle
joint. (fill in the blanks)

9. Practical Style Spot Questions~
Question 5
a) Identify the muscle
marked by the arrow.
b) What is the ligament
that originates from
this muscle?
c) Is this the lateral or
medial aspect of the
hindlimb? How can you
tell?

10. Practical Style Spot Questions:
ANSWER KEY
Question 1
a) Identify the ligament
marked by the arrow.
b) List 2 functions of this
ligament.
c) What can occur if this
ligament is ruptured?
(Signs/symptoms)
d) How do you determine
the rupture of this
ligament clinically?
Question 1
a) Cranial cruciate
ligament
b) - Maintain femur on
menisci –Resist rotation
c) Joint instability. Dogs
can show “cranial
draw” sign, and hobble
without using this limb.
d) Cranial drawer test.

11. Question 2
a) Identify the ligament
marked by the arrow.
b) Is this ligament on the
lateral or medial aspect
of the stifle?
Question 2
a) Tendon of origin of long
digital extensor muscle.
b) Lateral.
Practical Style Spot Questions:
ANSWER KEY

12. Question 3
a) Identify the ligament
marked by the arrow.
b) State the origin, route
and insertion of this
ligament.
c) What other structures
in the stifle joint
provide stability to the
patella?
Question 3
a) Patellar ligament.
b) -Origin: Quadriceps
muscle. –Route:
Originates on distal end
of quadriceps, passes
patella, continues
distally to tibia. –
Insertion: Tibial
tuberosity
c) The medial and lateral
trochlear ridges.
Practical Style Spot Questions:
ANSWER KEY

13. Question 4
a) Identify the ligament
marked by the arrow.
b) Together with the
______ _______
ligament on the lateral
aspect , these two
structures provide
_____ to the stifle
joint. (fill in the blanks)
Question 4
a) Medial collateral
ligament.
b) Together with the
lateral collateral
ligament on the lateral
aspect, these two
structures provide
stability to the stifle
joint.
Practical Style Spot Questions:
ANSWER KEY

14. Question 5
a) Identify the muscle
marked by the arrow.
b) What is the ligament
that originates from
this muscle?
c) Is this the lateral or
medial aspect of the
hindlimb? How can you
tell?
Question 5
a) Quadriceps muscle
b) Patellar ligament
c) Lateral aspect due to
the presence of the
tendon of origin of the
long digital extensor
tendon
Practical Style Spot Questions:
ANSWER KEY