pelvic region Flashcards
Describe functions of pelvic girdle and hip joint
Locomotion, weight bearing & maintaining equilibrium + Provides attachment for powerful muscles involved in locomotion and maintenance of upright posture while Protects abdominopelvic structures
Identify bones, joints of pelvic girdle and hip
bones : Ilium, ischium, acetabulum
Joints : pubic symphysis and the lumbosacral, sacroiliac, and sacrococcygeal joints.
Describe differences in pelvic bone structure
Male : the narrower male pelvis with acute angle at the symphysis pubis, Thick and heavy, Small pelvic outlet
Female : Wider pelvis with obtuse angle at the symphysis pubis, Thin and light, Large pelvic outlet
ilium bone : function and contents
The widest and most superior component of the hip bone
external part = attachments to the gluteal muscles.
ischium bone : function and contents
leg mobility, balance, standing up, and lifting tasks
attachments for hamstrings and quadrutus femoris and adductor Magnus
where is sacroiliac joint
where is sacrococcygeal joint
sacrum, and the base of the coccyx
where is the the pubic symphysis
left pelvic bone connects with your right pelvic bone.
classification of pubic symphysis
secondary cartilaginous
where is acetabular labrum
the socket
where is the sacrospinous ligament
attached to the ischial spine (a bone prominence in the lower pelvis) and the lateral (side) regions of the sacrum
where is the sacrotuberous ligament,
connects the bony pelvis to the vertebral column
where is the iliofemoral ligament
arises from the anterior inferior iliac spine (AIIS) and attaches to the line of the femur.
where is ligament of the head of the femur (teres)
muscles of the anterior hip region
Illacus
Psoas Major
Psoas major
O= lumbar, spine (bodies of all lumbar vertebrae)
I = Lesser trochanter of femur as iliopsoas tendon
A = Flexion of the thigh/trunk, lateral rotation of the thigh, Lateral flexion of the trunk
Illacus
O= Illiac fossa
I= lesser trochanter as one tendon
A = Hip flexor
Medial posterior compartment Adductor Region
Adductor Magnus, Adductor longus, Adductor Brevis Pectineus, Gracilis
Adductor Magnus
O= body of pubic bone
I= Posterior femur linea aspera
A= Thigh flexion, thigh adduction, thigh external rotation
internal rotation
adductor longus
O=bodyof pubic bone
I= Posterior femur linea aspera
A= Thigh flexion, Thigh adduction, Thigh external rotation
Adductor brevis
O = body rami of pubic bone
I = Posterior femur linea aspera
A= Hip joint: thigh flexion, thigh adduction, thigh external rotation; pelvis stabilization
Pectineus
O=Superior pubic ramus
I= linea aspera of femur
A= Thigh flexion, thigh adduction, thigh external rotation, thigh internal rotation
Gracilis
O = body of pubic bone
I =pes anserinus
A= Thigh flexion, thigh adduction leg flexion, leg internal rotation
Gracilis
O = body of pubic bone
I = Pes anserinus
A= Thigh flexion, thigh adduction leg flexion, leg internal rotation
Gluteal Superficial
Gluteus maximus, Gluteus medius, Gluteus minimus piriformi, Quadratus femoris
piriformi
O = Gluteal surface of ilium
I = Greater trochanter of the femur
A = high external rotation, Thigh abduction (from flexed hip); Stabilizes head of femur in acetabulum
Quadratus femoris
O= Ischial tuberosity
I = Intertrochanteric crest of femur
A = thigh external rotation; stabilizes head of femur in acetabulum
The tensor fasciae latae
O = Outer lip of anterior iliac crest
I = Lateral condyle of tibia
A= Thigh internal rotation, (Weak abduction); Knee joint: Leg external rotation, (Weak leg flexion/ extension); Stabilizes hip & knee joints
muscles for Flexion of hip joint
Psoas major, iliacus and rectus femoris; assisted by pectineus, tensor fasciae latae and sartorius
muscles for extension of hip joint
Gluteus maximus, biceps femoris, semitendinosus,
semimembranosus and adductor magnus
muscles for adduction of hip joint
Adductors longus, brevis and magnus, gracilis; assisted by pectineus, quadratus femoris and the inferior fibres of gluteus maximus
muscles for abduction of hip joint
Glutei medius and minimus; assisted by tensor fasciae latae, piriformis and sartorius
muscles for external rotation of hip joint
Gluteus maximus, obturator internus, superior and inferior gemelli, quadratus femoris, piriformis; assisted by obturator externus and sartorius
Mnemonic
muscles for internal rotation of hip joint
Glutei minimus and medius; assisted by tensor fasciae latae and most adductor muscles
the greater trochanter insertion for
gluteus medius, gluteus minimus, piriformis, obturator externus, and obturator internus.
the lesser trochanter insertion for
psoas major muscle and the iliacus muscle
