exam 3-1 Flashcards
(124 cards)
Adductor Longus (General)
A muscle found just medial to the pectineus.
Adductor Longus (Origin/Insertion)
Origin: superior ramus of pubis Insertion: linea aspera of femur
Adductor Longus and Brevis (Action)
Action: adducts femur
Adductor Magnus (Actions)
Actions:* Adducts femur* Extends femur at hip joint
Adductor Magnus (General)
A large, composite muscle (part medial thigh and part posterior thigh). This muscle is found deep to the adductor longus (anteriorly), and the hamstrings (posteriorly). Its tendon of insertion has slit like opening, the hiatus tendinous which leads into the popliteal fossa. This opening is where the femoral vessels become the popliteal vessels.
Adductor Magnus (Nerve Supply)
Nerve Supply: * Obturator (L₂, L₃, and L₄) * Sciatic (L₄, L₅, S₁, S₂, and S₃)
Adductor Magnus (Origin/Insertion)
Origin: rami of the ischium and pubis Insertion: linea aspera and adductor tubercle of femur
Adductor Tubercle
Bony projection found on the medial epicondyle of the femur.
Android Pelvis
Typical male pelvis.
Angle of Inclination
The way the neck of the femur meets the shaft of the bone forms {this}. It is greatest at birth (about 145°) and gradually diminishes until adulthood (about 125°). It allows greater mobility at the femur by providing increased leverage for muscles that work at the hip joint. This is a great advantage for bipedal locomotion but puts considerable stresses on the neck of the femur which can lead to increased fractures with age.
Chondromalacia (Patella)
A condition in which there is a softening and fissuring of the articular cartilage of the patella. * Common in young adults* Usually caused by trauma, overuse, misalignment of the patella and muscle weakness* Most frequent complaints are of a dull pain around or under the patella that worsens with exercise, the pain may intensify when going from a position of flexion to extension at the knee joint
Femoral (Nerve Damage)
{This} nerve may be injured by trauma but complete division is rare. When the nerve is damaged the following problems will occur: Motor: quadriceps are involved and the leg cannot be extended, and flexion at the hip is diminished (iliopsoas)Sensory: medial and intermediate anterior aspect of the thigh, and medial aspect of the leg and foot.Test for damage by assessing both flexion at the hip and extension at the leg.
Femoral (Nerve)
Nerve:Segmental Innervation: L₂, L₃, and L₄Division: posterior Motor Supply: iliacus, psoas major, sartorius, quadriceps, and pectineus Cutaneous Supply: medial and intermediate aspect of the anterior thigh, medial aspect of the leg and foot (from specific branch saphenous nerve) Articular Supply: hip and knee
Femoral Triangle
Borders: superior - inguinal ligament, lateral - sartorius, medial - adductor longusContents (lateral to medial): femoral nerve and several of its branches, femoral sheath (femoral artery and vein), and inguinal lymph nodes
Gemellus Superior (General)
A small muscle which is situated between the piriformis and the obturator internus and deep to the gluteus maximus. Its tendon of insertion fuses with that of the obturator internus and gemellus inferior.
Gemellus Superior (Origin/Insertion)
Origin: spine of ischium Insertion: greater trochanter of femur
Gemellus Superior, Obturator Internus, Gemellus Inferior, and Quadratus Femoris (Nerve Supply)
Nerve Supply: L₄, L₅, S₁, and S₂
Genitofemoral (Nerve)
Nerve pierces the psoas major muscle and runs inferiorly on its anterior aspect. As the nerve descends it divides into a femoral and genital branch. Segmental Innervation: L₁ and L₂Division: anteriorMotor Supply: cremaster muscleCutaneous Supply: skin of the external genitalia and small area of skin below the inguinal ligament
Gluteal (Trendelenburg) Gait
A type of abnormal locomotion when there is displacement of body weight to the unaffected side when one walks with a deficient gluteus medius and minimus.
Gluteal Bursae
Group of bursae which separate the gluteus maximus from underlying bony features.
Gluteal Line
A roughened area that is found inferior to the greater trochanter of the femur.
Gluteus Maximus (Actions)
Actions:* Extends and laterally rotates the femur* Helps to stabilize the pelvic bone* Stabilizes the knee joint
Gluteus Maximus (Origin/Insertion)
Origin: posterior gluteal line of ilium, sacrum and coccyx, and posterior ligaments of the sacroiliac joint. Insertion: gluteal tuberosity of femur and iliotibial tract
Gluteus Maximus (Weakness)
Weakness of this muscle will cause patients difficulty in getting from a sitting to a standing position (patients may have to actively push themselves to the standing position), straightening from a bending position, walking uphill and up stairs. Paralysis of the muscle does not seriously affect walking on level ground or when standing still.