Week 5/6 Flashcards
Gender differences in general structure of pelvis
Male: thick and heavy
Female: thin and light
Gluteus minimus Insertion
Greater trochanter
3 major pelvic arteries off Anterior branch of Internal Iliac
Obturator artery,
Pudendal Artery,
Inferior Gluteal Artery
Tensor fascia lata Innervation
Superior gluteal nerve
Pelvic floor consists of
Pelvic diaphragm,
Levator Ani,
Coccygeus
Semimembranosus Innervation
Tibial portion of sciatic
Superior opening of pelvic cavity
Pelvic inlet
Pectineus Innervation
Femoral and Obturator nerve
Adductor Longus Insertion
Distal 2/3 of linea aspera
Biceps femoris - long head Origin
Ischial tuberosity
Gluteus Maximus Insertion
Gluteal tuberosity and iliotibial band
Inferior Gemellus Insertion
Greater trochanter
The anterior femoral cutaneous nerve arises from the _______ in ________.
Femoral nerve
Femoral triangle
This nerve also travels into proximal medial aspect of thigh
Ilioinguinal L1
Vastus Lateralis Insertion
Tibial tuberosity via patellar ligament.
Profunda femoris artery gives rise to…
Lateral and medial femoral circumflex arteries
Gender differences pubic arch
Male: narrow
Female: wide
This nerve innervates the skin of the thigh inferior to the inguinal ligament on the medial aspect.
Genitofemoral
Adductor Brevis Action
Adduct and flex thigh
Gluteus Maximus Origin
Ilium posterior to gluteal line, sacrum, sacrotuberous ligament
Quadratus femoris Insertion
Intertrochanteric crest
Roof of popliteal fossa
Fascia lata with branches of the posterior femoral cutaneous nerve and the lesser saphenous vein
Biceps femoris action
Extend thigh and flex leg (knee)
This nerve innervates the skin of the anterior and medial thigh
Femoral nerve
This nerve extends laterally and distally from greater trochanter to area just proximal to the knee
Lateral femoral cutaneous
Inferior Gemellus Origin
Ischial tuberosity
Rectus Femoris Innervation
Femoral nerve
Biceps femoris Innervation
Sciatic nerve
Piriformis Innervation
Nerve to piriformis
Gender differences pelvic outlet
Male: small
Female: large
Gluteus minimus Innervation
Superior gluteal nerve
Biceps femoris- short head Origin
Linea aspera
Adductor Magnus Action
Adduct and flex thigh.
Extend thigh.
Rectus Femoris Origin
Anterior inferior iliac spine and
Rim of acetabulum
Vastus Lateralis Action
Extend knee
Coccygeus Innervation
Branches of S4 and S5 spinal nerves
The medial compartment of the thigh contains the thigh _________.
Adductors
Muscles of gluteal region are involved primarily with:
Abduction and lateral rotation of thigh.
Medial compartment thigh muscles
Gracilis,
Adductor Longus,
Adductor Magnus,
Adductor Brevis
Quadratus femoris Origin
Ischial tuberosity
Pelvic diaphragm consists of
Levator Ani and coccygeus
Tensor fascia lata action
Abducts and flexes thigh
This nerve travels through superficial inguinal ring to innervate the inferior pelvis (subcutaneous.)
Ilioinguinal L1
Obturator Internus Insertion
Greater trochanter
Gluteus Maximus Action
Extends thigh when running and climbing, sit to stand.
Laterally rotates hip.
Pectineus Origin
Pectineal line of superior ramus of pubis.
Semitendinosus Action
Extends thigh, flex leg, and medially rotate leg
This artery supplies the posterior compartment and gives rise to the peroneal artery.
Posterior tibial artery
Hamstring muscles
Biceps femoris
Semitendinosus
Semimembranosus
Gluteus Medius action
Abducts and medially rotates thigh
Superior Gemellus Origin
Ischial spine
Inferior Gemellus Action
Laterally rotates and extends thigh
Gluteus minimus Origin
Ilium between superior and inferior gluteal lines
Gluteus Medius Insertion
Greater trochanter
Vastus Intermedius Action
Extend knee
Obturator Internus Innervation
Nerve to obturator internus
Semimembranosus Insertion
Medial condyle of tibia
Vastus Intermedius Innervation
Femoral nerve
Quadratus femoris action
Laterally rotates and extends thigh
Main blood supply to pelvic region
Internal iliac artery
Sacrospinous ligament
Extends from sacrum and coccyx to the ischial spine.
It is anterior to the sacrotuberous ligament.
Pelvic diaphragm stretches from _________ to ___________. And laterally to __________.
Pubis (anteriorly)
Coccyx (posteriorly)
Walls of pelvis on both sides.
Semitendinosus Insertion
Medial surface of tibia inferior to condyle
Coccygeus Action
Support pelvic viscera.
Forms part of diaphragm.
2 branches of Internal Iliac Artery
Anterior and Posterior
Piriformis Origin
Pelvic surface of the sacrum
Semitendinosus Origin
Ischial tuberosity
Sacrotuberous ligament
Extends from posterior inferior iliac spine, sacrum and coccyx to the ischial tuberosity.
Adductor Brevis Origin
Inferior ramus of the pubis