Unit 5 Lecture 3 Flashcards
What makes up the pelvic girdle?
The pelvis and sacrum
What are the three regions of the pelvis?
Ilium, ischium, and pubis
What is the hip joint also called?
Coxal joint
What type of joint is the Coxal joint?
Ball and socket
What is the articulation of the Coxal joint?
Articulation of spherical head of femur with deep cup shaped acetabulum
What is the acetabulum lined with?
Hyaline cartilage
What does the acrtabular labrum add to?
Adds depth to joint and serve as cushion against impact of femoral head
What do Acetabular larval tears happen?
Often due to repetitive twisting or trauma
Symptoms of acetabular lab real tears
Locking or clicking in the hip, pain in the hip or groin
Treatment to acetabular labral tears
Physical therapy, NSAIDS, or surgery
What is the teres femoris also called?
Ligament of the head of the femur
What is the teres femoris?
Intracapsular ligament of the hip
What does the teres femoris provide stability to?
Provides stability from within the hip
What are the other three Coxal ligaments?
Iliofemoral ligament, ishiofenoral ligament, and pubofemoral ligament
What is the compressive force on the hip when walking?
3 to 4 BW
What is the compressive force on the hip when running?
> 5 BW
What is the compressive force on the hip when skiing downhill?
> 7 BW
Medial hip joint muscles
Adductors and gracilis
Lateral hip joint muscles
Gluteus medius and minimus
Iliopspoas origin and insertion
Origin: pelvis and lumbar spine
Insertion: femur
Action of iliopspoas
Prime mover of hip flexion and trunk lateral flexion
Pectineus origin and insertion
Origin: pelvis
Insertion: femur
Actions of pectineus
Hip adduction, flexion, and medial rotation
Rectus femoris origin and insertion
Origin: pelvis
Insertion: femur
Action of rectus femoris
Hip flexion and knee extension
What is the only quadricep muscle that crosses the hip?
Rectus femoris
Sartorius origin and insertion
Origin: pelvis
Insertion: tibia
Action of sartorius
Hip flexion, abduction, lateral rotation, and weak knee flexor
Tensor fasciae Latae origin and insertion
Origin: pelvis
Insertion: lateral tibia via the IT band
Action of tensor fasciae latae
Hip flexion and abduction
What muscles make up the hamstrings?
Biceps femoris
Semiteninosis
Semimembranosis
Hamstrings origin and insertion
Origin: pelvis and femur
Insertion: tibia and fibula
Actions of hamstrings
Hip extension and knee flexion
What hamstring is used for ACL autograft?
Semitendinosus
Gluteus Maximus origin and insertion
Origin: pelvis
Insertion: femur
Action of gluteus Maximus
Prime mover of hip extension
Hip lateral rotation
Hip abduction
What is the IT band friction syndrome?
Common inflammatory overuse injury in runners and other athletes
How does IT band friction syndrome happen?
Repetitive flexion/extension motion of running makes IT band continually ride over the lateral femoral epicondyle
Deep lateral rotators actions
Hip lateral rotation
Gluteus medius and minimus origin and insertion
Origin: pelvis
Insertion: femur
Actions of gluteus medius and minimus
Hip abduction
Hip medial rotation
Adductor muscles origin and insertion
Origin: pelvis
Insertion: femur
Action of adductor muscles
Prime mover of hip adduction
Hip medial rotation
Gracilis origin and insertion
Origin: pelvis
Insertion: tibia
Actions of gracilis
Hip adduction
Hip medial rotation
Hip flexion
Weakly assists in knee flexion
What is hip arthroplasty?
Hip replacement
