GA2 Exam 1 - USAHS Flashcards
- What Bones make up the Pelivs?
- What are the 3 articular surfaces?
- Ilium
Ischium
Pubis - Acetabulum
Auricular Surace
Symphyseal Surface
- What Bones Make up the Pelvic Girdle?
- What are the Functions of the Pelvic Girdle?
- Os Coxa (ilium , ishium, pubis) + Saccrum with coccyx
- Functions include:
-bearing weight of the upper body
-distribute forces from the lower body
-attatchment site for muscles of lower extremity needed for locomotion
-Protection of the pelvic viscera
-attatchment site for pelvic floor muscles
- What are the articulations associated with the pelvic girdle?
- Lumbosacral : a joint of axial skeleton
- Sacroiliac: Link between the appendicular and axial skeleton and is a synovial joint anteriorly, auricular surface of the ilium and auricular surface of the sacrum, has minimal movement
- Sacro-Coccygeal: where sacrum and coccyx meet
- Pubis Symphysis: Cartilagenous joint, medial surface of the pubic bones, seperated by inter-pubic disc
How many articulations create the lumbosacral joint?
- Intervertebral Joint between L5 and Sacrum
- 2 Zygopophyseal joints
What motions occur at the lumbosacral joints?
- Flexion
- Extension
- Lateral Flexion
- Rotation
What Ligaments Stabilize the sacroiliac joint and what are their functions?
- Anterior Sacral-iliac: Permits little sliding , tiliting and rotation , attach sacrum to ilium , helpssuspension of sacrum on ilium
- Posterior Sacral-Iliac :Permits little sliding , tiliting and rotation , attach sacrum to ilium , helpssuspension of sacrum on ilium
- Interosseous Sacral-Iliac:Permits little sliding , tiliting and rotation , attach sacrum to ilium , helpssuspension of sacrum on ilium
- Sacrotuberous ligament: Prevent excessive rotation of sacrum on the ilium
- Sacrospinous Ligament:Prevent excessive rotation of sacrum on the ilium
What are ligaments of the lumbosacral joints and what are their functions?
- Iliolumbar Ligament: mainly for stabilization , transverse process of L5(4) to the ilium
- Anterior Longitudinal Ligament : Limits excessive extension
What are the ligaments of the pubic symphysis and their function?
- Superior Pubic Ligament
- Inferior Pubic Ligament
These both join the right and left pelvis and acts like a strut to dissipate forces through the pelvic rim
What articulations make up the hip joint?
What is its classfication?
What motions occur at this joint?
- Acetabularfemoral Joint (coxafemoral joint) (acetabulum and femoral head)
- Synovial joint , ball + socket
- Flexion, extension, abduction, adduction, medail rotation, lateral rotation, circumduction
What are the ligaments of the hip and what are their functions?
- Iliofemoral: hyperextension and lateral rotation (both bands) abduction (inferior band) , adduction (superior band)
- Ischiofemoral: Hyperextension, flexion (posterior inferior capsule) , medial rotation
- Pubofemoral: Hyperextension , abduction , lateral rotation
A tear to the iliofemoral ligament will affect which part of the joint capsule?
- Anteriorly + Superior and Anterior + Lateral
What are the boarders of the gluteal region?
- Superior: iliac crest
- Medially: midline of the body, intergluteal cleft
- Laterally: posterior margin of the greater trochanter
- Inferiorlly : Gluteal Fold
- Anteriorly: innominate (body pelvis)
- Posteriorly: skin
Gluteal muscle functions during ambulation:
- Glute med/min stabilize the pelvis in a unilateral stance , important in advancement of the limb
- Fibers from the glue med/min may fall lateral or medial to axis of rotation / anterior fibers produce medial rotation of stance limb
- posterior fibers produce lateral rotation of the advancing limb
What are the abductors and medial rotators of the hip joint?
Gluteus Medius
Gluteus Minimis
TFL
What are the extensors of the hip joint?
Gluteus Maximus
Semitendinosus
Semimembranosus
Long head of Biceps femoris
Adductor magnus , hamstring part
What are the lateral rotators of the hip?
Obturator Externus
Piriformis
Obturator Internus
Gemelli (superior and inferior)
Quadratus Femoris
Gluteus Maximus
What are the adductors of the hip?
Pectineus
Adductor Longus
Adductor Brevis
Adductor Magnus
Obturator Externus
Gracillis
What are the flexors of the hip?
Iliopsoas (major, minor, iliacus)
Sartorius
TFL
Rectus Femoris
Pectineus
Adductor Longus
Adductor Brevis
Adductor magnus, adductor part
Gracillis
What are the bursae of the hip andwhat structures are they associated with?
- Trochanteric: between gluteus maximus and greater trochanter
- Gluteofemoral: gluteus maximus and the vastus lateralis
- Ischial: gluteus maximus and the ischial tuberosity
What nerve roots make up the sacral plexus?
What are the terminal Nerves?
- Lumbosacral trunk: L4 and L5 anterior rami
- Lumbosacral trunk unite with the anterior rami of S1-S4
- Sciatic
- superior and inferior gluteal
- nerve to piriformis
- nerve to quadratus femoris
- nerve to obturator internus
- pudendal
- nerve to levator ani and coccygeus
Superior Gluteal Nerve
Motor? Sensory?
- Superior Gluteal Nerve: L4-S1
- Motor : Glute medius, minimus , TFL
- Sensory: SI JT and Hip Joint
Inferior Gluteal Nerve?
Motor ? Sensory?
- Inferior Gluteal Nerve L5-S2
- Motor: Gluteus Maximus
- Sensory: None
Nerve to Quadratus Femoris?
Motor? Sensory?
- Nerve to Quadratus Femoris L4-S1
- Motor: Quadratus femoris , inferior gemellus
- Sensory: Hip Joint
Nerve to Obturator Internus?
Motor? Sensory?
Obturator Internus L5-S2
Motor: Obturator internus, superior gemellus
Sensory: None
Nerve to Piriformis?
Motor? Sensory?
Nerve to Pirformis S2-S3
Motor: Piriformis
Sensory: None
What are the clunial nerves and what do they supply?
- Superior Clunial Nerve = Posterior Rami L1-L3 , skin over the superior and central buttock
- Middle Clunial Nerve= Posterior Rami S1-S3, skin to the medial buttock and gluteal cleft
- Inferior Clunial = Anterior Rami S2-S3, supplies skin to inferior gluteal region, is a branch off of the posterior cutaneous nerve of the thigh
What is the pathway to get to the following from abdominal aorta?:
Superior Gluteal
Inferior Gluteal
Internal Pudendal
Obturator
- Superior Gluteal: abdominal aorta, common iliac, internal iliac, superior gluteal
- Inferior Gluteal : abdominal aorta, common iliac, internal iliac, inferior gluteal
- Internal Pudendal: abdominal aorta, common iliac, internal iliac , internal pudendal
- Obturator: abdominal aorta, common iliac, internal iliac, obturator
- What is angle of inclination and noramtive values
- What is torison angle and normative values for male / female?
- Angle of inclination is the cross section between head and neck of the femur and the shaft of the femur
the average angle is 126 degrees
angle ranges is 116-140 - Torsion angle is the intersection between the head and neck of the femur viewed superiorly and the transverse axis of femoral condyles
Men= 7 degrees
Women= 12 degrees
What are the noramtive values for :
* Coxa Vara
* Coxa Valga
- Coxa Vara: < 126
- Coxa Valga: >140
What are the boarders of the femoral triange?
What are the contents?
Boarders
* Superiorly: Inginual Ligament
* Medially: Adductor Longus
* Laterally: Sartorius
* Floor: Pectineus and Iliopsoas
* Inferiorly: Junction where sartorius and adductor longus intersect
Contents
* Femoral vein
* Femoral artery
* femoral nerve
- What nerve roots make up the lumbar plexus?
- What areas are innervated by the lumbar plexus?
- How are these nerves organized?
- Where are the divisons found?
- Ventral rami L1-L4
- structures of the abdominal walls, pelvic regions, and LE’s
- rami, divisons, and terminal nerves
- divisions are only found from L2-L4
Lateral Femoral Cutaneous Nerve:
What is its segement and what does it have sensory too?
(L2-L3) skin over the lateral thigh
Femoral Nerve (L2-L4)
* Motor?
* Sensory?
- Motor: Quadriceps , iliacus , pectineus , sartorius
- Sensory:
Anterior Cutaneous: skin over the anterior thigh
Saphenous: skin over the medial knee, leg, ankle
Obturator Nerve
What are the segments? Motor ? Sensory?
L2-L4
Motor: Adductor(s) , gracillis
Sensory: medial thigh
Adductor Canal
* What are the contents?
* Where is it found?
Contents:
* Femoral Nerve
* Femoral Artey
* Femoral Vein
* Saphenous Nerve
Found:
* Between the sartorius, adductor longus , and vastus medialis
Adductor Hiatus
* What are the contents?
* Where is it found?
Contents:
* Femoral Artery
* Femoral Vein
Found:
* opening in the adductor magnus
* permits structures to pass from anterior to posterior
Sciatic Nerve
Segements? Branches? Motor? Sensory ?
- Segements: L4-S3
- Branches: Tibial Nerve (L4-S3) and Common Fibualr (L4-S2)
- Motor through the tibial and common fibular:
Tibial: long head of biceps femoris, semitendinosus, semimembranosus, hamstring part of adductor magnus
Common Fibular: Short head of biceps femoris - Sensory: none
Which arteries supply the head and neck of the femur?
- Medial Circumflex femoral (posterior head and neck of femur)
- Acetabular branch of Obtruator Nerve (femoral head)
- Lateral Circumflex femoral the ascending and transverse branches (trochanters)
what are the three articulating surfaces of the knee?
- Medial Femorotibial Articulation
- Lateral Femorotibial Articulation
- Femoropatellar Acticulation
Describe the movement of the patella
Beyond 90 degrees patella tilts and the contact with the odd facet is made to the medial condyle of the femur
What are the available movements of the knee joint complex?
Flexion, Extension, Medial and lateral rotation