Pelvic Limb Joints

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Questions and Answers

Which muscle originates from the tuber ischii?

Calcaneus

Patellar ligament

Quadriceps femoris

Hamstring muscle (correct)

What is the function of the ligament of the head of the femur?

To course from the acetabulum to the head of the femur (correct)

To flex the stifle

To extend the hip

To extend the hock calcaneus

What is the purpose of the synovial fluid in the coxofemoral joint?

To extend the hip

To flex the stifle

To secrete the joint capsule

To lubricate the joint (correct)

How many ligaments are associated with the stifle joint?

Several Signup and view all the answers

What is the function of the menisci in the stifle joint?

To act as shock absorbers between the femur and tibia Signup and view all the answers

What is the purpose of the patellar ligament?

To connect the patella to the quadriceps femoris tendon Signup and view all the answers

Which muscle is responsible for flexing the hip and extending the stifle (knee) joint?

Quadriceps femoris Signup and view all the answers

What type of joint is the coxofemoral (hip) joint?

Synovial joint Signup and view all the answers

Which bone forms the socket (acetabulum) of the coxofemoral joint?

Ischium Signup and view all the answers

What is the primary action of the semitendinosus muscle?

Flexion of the hip Signup and view all the answers

Which joint is located between the tarsus (hock) and the metatarsophalangeal joints?

There is no joint between the tarsus and metatarsophalangeal joints Signup and view all the answers

Which of the following is NOT a part of the pelvis?

Femur Signup and view all the answers

What is the primary function of the collateral ligaments of the stifle?

To limit medial (varus) and lateral (valgus) motion of the tibia Signup and view all the answers

Which ligament attaches the patella to the tibial tuberosity?

Patellar ligament Signup and view all the answers

What is the primary function of the cranial cruciate ligament?

To prevent the tibia from sliding cranially Signup and view all the answers

Which ligament is responsible for limiting lateral (valgus) motion of the tibia?

Medial collateral ligament Signup and view all the answers

Which statement about the cruciate ligaments is correct?

They are named for where they attach to the tibia Signup and view all the answers

Which ligament courses from the femur to the fibula and tibia?

Lateral collateral ligament Signup and view all the answers

What is the primary function of the caudal cruciate ligament?

To prevent caudal movement of the tibia Signup and view all the answers

Which of the following ligaments courses from the femur to the fibula and tibia?

Lateral collateral ligament Signup and view all the answers

What is the primary function of the cranial cruciate ligament?

Prevents the tibia from sliding cranially Signup and view all the answers

Which ligament attaches the patella to the tibial tuberosity?

Patellar ligament Signup and view all the answers

What is the primary function of the collateral ligaments of the stifle?

Stabilize the stifle joint Signup and view all the answers

Which ligament courses from the femur to the tibia and limits lateral (valgus) motion of the tibia?

Medial collateral ligament Signup and view all the answers

What is the primary function of the caudal cruciate ligament?

Prevents caudal movement of the tibia Signup and view all the answers

Which of the following is an intra-articular ligament of the stifle joint?

Cranial cruciate ligament Signup and view all the answers

Which muscle has the origin on the ilium, cranial to the acetabulum, and inserts on the tibial tuberosity?

Rectus femoris muscle Signup and view all the answers

Which ligament connects the femur head to the acetabulum in the coxofemoral joint?

Ligament of the head of the femur Signup and view all the answers

Which bone forms the socket component (acetabulum) of the coxofemoral joint?

Pubis Signup and view all the answers

What is the primary movement facilitated by the coxofemoral joint?

Flexion and Extension Signup and view all the answers

Which ligament limits lateral (valgus) motion of the tibia at the stifle joint?

Lateral collateral ligament Signup and view all the answers

Which part of the bone forms a synovial joint with the acetabulum in the coxofemoral joint?

Head of the femur Signup and view all the answers

Which muscle originates from the pelvis and inserts on the proximal, caudal tibia and calcaneus?

Tuber ischii Signup and view all the answers

What is the primary function of the ligament of the head of the femur?

Stabilizing the coxofemoral joint Signup and view all the answers

Which of the following statements about the stifle joint is correct?

It consists of the femorotibial and femoropatellar joints Signup and view all the answers

What is the primary function of the menisci in the stifle joint?

Distributing weight and reducing friction Signup and view all the answers

Which structure is responsible for limiting lateral (valgus) motion of the tibia?

Collateral ligaments Signup and view all the answers

Which bone forms the socket (acetabulum) for the coxofemoral joint?

Pelvis Signup and view all the answers

Which bone forms the socket (acetabulum) for the coxofemoral joint?

Pelvis Signup and view all the answers

What is the primary function of the ligament of the head of the femur in the coxofemoral joint?

To connect the femur head to the acetabulum Signup and view all the answers

Which muscle originates from the tuber ischii and inserts on the proximal, caudal tibia and calcaneus?

Semitendinosus Signup and view all the answers

What is the primary function of the menisci in the stifle (knee) joint?

To provide shock absorption and load distribution Signup and view all the answers

Which ligament courses from the femur to the tibia and limits lateral (valgus) motion of the tibia at the stifle joint?

Lateral collateral ligament Signup and view all the answers

What is the primary action of the semitendinosus muscle?

Extend the hip Signup and view all the answers

What is the main function of the lateral collateral ligament of the stifle joint?

Limits lateral (valgus) motion of the tibia Signup and view all the answers

Which ligament of the stifle joint prevents caudal movement of the tibia?

Caudal cruciate ligament Signup and view all the answers

What is the role of the cruciate ligaments in the stifle joint?

Prevents cranial movement of the tibia Signup and view all the answers

Which structure attaches to the tibia cranially and prevents cranial movement?

Patellar ligament Signup and view all the answers

Which statement accurately describes the function of the medial collateral ligament?

Limits lateral (valgus) motion of the tibia Signup and view all the answers

What is the main function of the collateral ligaments in the stifle joint?

Help stabilize and limit certain movements at the stifle joint Signup and view all the answers

Which ligament connects between the femur and tibia intra-articularly in the stifle joint?

Cruciate ligaments Signup and view all the answers

What is the primary action of the quadriceps femoris muscle?

Flexing the hip and extending the stifle Signup and view all the answers

Which muscle originates from the tuber ischii and acts on the hip and stifle joints?

Semitendinosus Signup and view all the answers

Which bone forms the ball component of the coxofemoral (hip) joint?

Head of the femur Signup and view all the answers

What is the primary function of the ligament of the head of the femur?

Connect the femur head to the acetabulum Signup and view all the answers

Which joint allows for flexion, extension, abduction, adduction, and circumduction movements?

Coxofemoral (hip) joint Signup and view all the answers

What is the primary function of the synovial fluid in the coxofemoral joint?

Lubricate the joint surfaces Signup and view all the answers

Which structure is responsible for secreting synovial fluid for lubrication in the coxofemoral joint?

Joint capsule Signup and view all the answers

What is the primary function of the menisci in the stifle joint?

Limit lateral (valgus) motion Signup and view all the answers

Which ligament is responsible for connecting the acetabulum to the head of the femur in the coxofemoral joint?

Ligament of the head of the femur Signup and view all the answers

What is the main function of the ligament of the head of the femur in the coxofemoral joint?

Stabilize the hip joint Signup and view all the answers

Which muscle is responsible for extending the hock calcaneus?

Semitendinosus Signup and view all the answers

What is a characteristic movement limited by the stifle joint?

Flexion and extension Signup and view all the answers

Which muscle originates from the ilium and inserts on the tibial tuberosity, flexing the hip and extending the stifle?

Rectus femoris Signup and view all the answers

Which ligament connects the femur to the tibia within the stifle joint and prevents cranial translation of the tibia?

Cranial cruciate ligament Signup and view all the answers

What is the primary function of the menisci in the stifle joint?

Distribute weight-bearing forces across the joint Signup and view all the answers

Which ligament limits lateral (valgus) motion of the tibia relative to the femur in the stifle joint?

Lateral collateral ligament Signup and view all the answers

Which muscle originates from the tuber ischii and inserts on the proximal, caudal tibia and calcaneus?

Semitendinosus Signup and view all the answers

Which bone forms the ball component (head) of the coxofemoral (hip) joint?

Femur Signup and view all the answers

What is the primary function of the caudal cruciate ligament?

Prevents caudal movement of the tibia Signup and view all the answers

Which ligament limits lateral (valgus) motion of the tibia at the stifle joint?

Medial collateral ligament Signup and view all the answers

What is the primary function of the menisci in the stifle joint?

Provide cushioning and distribute weight-bearing forces Signup and view all the answers

Which ligament attaches the patella to the tibial tuberosity?

Patellar ligament Signup and view all the answers

What is the primary function of the collateral ligaments in the stifle joint?

Help stabilize the stifle joint Signup and view all the answers

Which ligament courses from the femur to the fibula and tibia?

Lateral collateral ligament Signup and view all the answers

Which statement accurately describes the function of the cranial cruciate ligament?

It prevents the tibia from sliding cranially Signup and view all the answers

Study Notes

Pelvic Limb Joints

Joints of the pelvic limb: sacroiliac joint, coxofemoral (hip) joint, stifle joint, tarsus, proximal and distal interphalangeal joints, and metatarsophalangeal joints.

Coxofemoral Joint

Formed by the ilium, ischium, and pubis bones.
The head of the femur (ball) articulates with the acetabulum (socket) of the pelvis.
Primary movements: flexion and extension.
Also allows for abduction, adduction, and circumduction.

Stifle Joint

Formed by the femur, patella, tibia, and fibula bones.
Primary movements: flexion and extension.
Consists of three individual joints: femorotibial, femoropatellar, and proximal tibiofibular joints.

Ligaments and Structures of the Stifle Joint

Patellar ligament: connects the patella to the tibial tuberosity.
Collateral ligaments: located on the lateral and medial sides of the stifle, extra-articular, and help stabilize the stifle.
Lateral collateral ligament: courses from the femur to the fibula and tibia, limits medial (varus) motion of the tibia.
Medial collateral ligament: courses from the femur to the tibia, limits lateral (valgus) motion of the tibia.
Cruciate ligaments: intra-articular, course between the femur and tibia.
Cranial cruciate ligament: attaches to the tibia cranially, prevents the tibia from sliding cranially.
Caudal cruciate ligament: attaches to the tibia caudally, prevents caudal movement of the tibia.

Muscles of the Pelvic Limb

Quadriceps femoris muscle: 4 heads, originates from the pelvis (ilium – cranial to the acetabulum) and proximal femur, inserts into the tibial tuberosity, actions: flex the hip, extend the stifle.
Semitendinosus muscle: originates from the pelvis (tuber ischii), inserts into the proximal, caudal tibia and calcaneus, actions: extend the hip, flex the stifle, extend the hock calcaneus.
Tuber ischii: a hamstring muscle, originates from the pelvis (tuber ischii), inserts into the proximal, caudal tibia and calcaneus, actions: extend the hip, flex the stifle, extend the hock calcaneus.

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Description

Test your knowledge on the structural and functional biology of pelvic limb joints in veterinary anatomy. Learn about muscles actions, bones forming the coxofemoral joint, parts of bones and ligaments forming the stifle joint.