Hip Joint

Question 1

Acetabulum

Answer 1

A
Location: A deep, cup-shaped depression on the lateral aspect of the pelvis where the ilium, ischium, and pubis meet
Attachments: Acetabular labrum, transverse acetabular ligament
Function: Forms the socket of the hip joint, providing stability and articulation for the femoral head
Articulations: Articulates with the head of the femur

Question 2

Articular Hyaline Cartilage

Answer 2

B
Location: Covers the surfaces of the acetabulum and femoral head
Attachments: None directly, but adheres to the underlying bone
Function: Provides a smooth, low-friction surface to facilitate joint movement and absorb shock
Articulations: Covers the articulating surfaces of the femur and acetabulum

Question 3

Synovial Membrane

Answer 3

C
Location: Lines the inner surface of the fibrous capsule of the hip joint
Attachments: Fibrous capsule and margins of the joint cavity
Function: Produces synovial fluid, which lubricates and nourishes the joint

Question 4

Ligament of Head of the Femur (Ligamentum Teres)

Answer 4

D
Location: A short ligament extending from the femoral head to the acetabulum
Attachments: Fovea capitis of the femoral head and acetabular notch
Function: Provides minor stabilization of the hip joint and contains a small artery that supplies the femoral head

Question 5

Transverse Acetabular Ligament

Answer 5

E
Location: A ligament bridging the acetabular notch at the inferior part of the acetabulum
Attachments: Connects the anterior and posterior ends of the acetabular labrum
Function: Completes the acetabular ring and supports the femoral head within the joint

Question 6

Synovial Fluid

Answer 6

F
Location: Found within the joint capsule of the hip joint
Attachments: None directly, produced by the synovial membrane
Function: Lubricates the joint, reduces friction, and nourishes the articular cartilage

Question 7

Head of the Femur

Answer 7

G
Location: The rounded, proximal end of the femur that fits into the acetabulum
Attachments: Ligamentum teres
Function: Forms the ball of the ball-and-socket hip joint, allowing a wide range of movement
Articulations: Articulates with the acetabulum of the pelvis

Question 8

Fibrous Capsule

Answer 8

H
Location: A strong, fibrous tissue surrounding the hip joint
Attachments: Extends from the acetabulum to the femoral neck, reinforced by ligaments
Function: Provides structural stability, limits excessive movement, and encloses the synovial membrane

Question 9

Acetabular Labrum

Answer 9

J
Location: A ring of fibrocartilage surrounding the rim of the acetabulum
Attachments: The edge of the acetabulum
Function: Deepens the hip socket, increases stability, and helps distribute load within the joint

Question 10

Synovial Fluid

Answer 10

K
Location: Found within the joint cavity of the hip joint, produced by the synovial membrane
Attachments: None directly, but contained within the synovial membrane
Function: Lubricates the hip joint to reduce friction. Provides nutrients to the articular cartilage. Acts as a shock absorber during movement

Question 11

Articular Hyaline Cartilage

Answer 11

I
Location: Covers the surfaces of the femoral head and acetabulum
Attachments: None directly, but it adheres to the underlying bone
Function: Provides a smooth, low-friction surface for joint movement. Absorbs shock and distributes loads across the joint.Helps prevent direct bone-to-bone contact
Articulations: Covers the articulating surfaces of the femoral head and acetabulum