Pelvis

Description

Flashcards on Pelvis, created by georgiahumz on 09/11/2015.
georgiahumz
Flashcards by georgiahumz, updated more than 1 year ago
georgiahumz
Created by georgiahumz about 10 years ago
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Resource summary

Question Answer
Os Coxae Ilium + Ischium + Pubis
bony features of the pelvis
Sacrum and Sacroiliac joint Sacrum=5 sacral vertebra fuse after puberty Synovial joint with fibrocartilage inside slight movement, during pregnancy Strong ligaments coccyx inferiorly
Pubic Symphysis No movement During pregnancy some movement Fibrocartilaginous disc Reinforced by Superior pubic ligament Inferior pubic ligament
The hip Male vs Female Female - childbearing Enlarged pelvic outlet Broader pubic angle, > 100 males are 90 or less Less curvature of sacrum and coccyx Wider, more circular pelvic inlet Broader pelvis Ilia project farther laterally Ilia don’t project as far superiorly
Femoral Triangle The femoral triangle is bounded: (superiorly) by the inguinal ligament. (medially) by the medial border of the adductor longus muscle. (laterally) by the medial border of the sartorius muscle. LVAN lymph Vein Artery Nerve
Arteries throughout the hip into leg Femoral  Popliteal  anterior & posterior tibial arteries  arches in the foot
veins throughout the hip into leg Great saphenous | Popliteal | small saphenous | fibular | arches of foot
Major Nerves to the lower limb - Lumbosacral Plexus - Femoral - Obturator - Sciatic
Lumbosacral Plexus Lumbar & Sacral Nerves L1 – S3 To pelvic organs & lower limb Sensory, motor & autonomic
Femoral Nerve L2 – L4 Motor: Anterior;sartorius and quadriceps Medial; pectineus and iliopsoas Sensory: Anteromedial thigh, medial leg and foot
Obturator Nerve L2-L4 Motor Adductors Adductor Magnus (ischial portion) Sensory Medial thigh
Sciatic Nerve L4-S3 Motor Hamstrings, Adductor Magnus (hamstring portion) Largest nerve Exits pelvis posteriorly via greater sciatic foramen below piriformis Divides above popliteal fossa into tibial and fibular/peroneal Most common injury – disc compression at nerve root level
Acetabulum Deep fossa Horseshoe shaped fibrocartilaginous pad fibrocartilage rim - ‘acetabular labrum’ Missing inferior segment: acetabular notch
Head of femur Head of femur (ball) Covered with articular cartilage except fovea Neck of femur Greater trochanter Joint capsule extends to the intertrochanteric line (anterior) and crest (posterior)
Transverse acetabular ligament fills in gap in acetabular labrum
Ligament of femoral head (ligamentum teres) from transverse acetabular ligament to centre of head of femur
Angle of inclination Between head and neck of femur, and shaft of femur Adult: 115o – 140o females < males puts strain on NOF What happens if the angle is too SMALL? What happens if the angle is too BIG?
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