Anatomy Dissection 1 Flashcards
What are the functions of the muscles of the anterior thigh?
flex at the hip and extend at the knee
What are the 4 muscles that make up the anterior thigh?
pectineus
iliopsoas
sartorius
quadriceps femoris
What are the 4 muscles that make up the quadriceps femoris?
rectus femoris
vastus lateralis
vastus intermedius
vastus medius
What are the proximal attachments for the iliopsoas muscle?
iliacus- illiac fossa
psoas major- lumbar transverse processes/IV discs
What are the distal attachments for the iliopsoas muscle?
lesser trochanter of hte femur
What is the action of the iliopsoas muscle?
flexion at the hip
What is the nerve supply for the iliopsoas muscle?
anterior rami of lumbar spinal nerves
What is the proximal attachment for the sartorius muscle?
ASIS
What is the distal attachment for the sartorius muscle?
medial surface of proximal tibia
What is the funcion of the sartorius?
flexion at the hip and knee
What is the nerve supply for the sartorius muscle?
femoral nerve
Waht is the proximal attachment for rectus femoris?
ASIS
What is the proximal attachment for vastus lateralis; vastus intermedius; vastus medius?
shaft of femur
What is the distal attachment for the quadriceps femoris?
patella then tibial tuberosity
What is the function of the quadriceps femoris?
extension of the knee (and weak flexion of hip for rectus femoris)
What is the nerve supply for the quadriceps femoris?
femoral nerve
What are the spinal roots for the femoral nerve?
L2-L4 formed in the lumbar plexus
What are the muscles of the medial thigh compartment referred to as?
adductor group
Why are the medial thigh muscles named the adductor gourp?
they act to adduct the thigh at the hip joint
What are the muscles of the medial thigh compartment?
adductor longus; adductor brevis; adductor magnus; gracilis; obturator externus (can also be classidied as in the gluteal region)
What are the 2 parts of the adductor magnus?
has an adductor part and a hamstring part
What nerve supplies the medial thigh muscles?
obturator nerve (L2-L4)
What nerve supplies the hamstring part of the adductor magnus?
tibial nerve
What 3 nerves give sensory innervation for the thigh?
anterior and lateral cutaneous nerves of the thigh
cutaneous branch fo the obturtor nerve
What does the anterior cutaneous nerve of the thigh come from?
femoral nerve (L2-L4)
What is the lateral cutaneous nerve of hte thigh a branch of?
lumbosacral plexus (L2-3)