MSK Flashcards
What do the muscles in the anterior compartment of the thigh do?
flex the hip and extend the knee
where do muscles normally contract towards
their origin
name the rotator cuff muscles
biceps brachi, supraspinatus, infraspinatus, teres minor and subscapularis
muscles that arise from the lateral epicondyle of the humerus are
extensors of the digits and carpus
what are the most important pair of muscles during walking and why?
gluteus max- it extends the hip
popliteal- it unlocks the knees whilst medially rotating the tibia when the foot is on the ground
where does the anterior cruciate ligament attach and orignate from. What does it prevent the femur from doing?
attaches anterior tibia to the posterior femur. It prevents posterior movement of the femur
abductors of the legs and arms are found in which directional plane
lateral
adductors of the legs and arms are found in which directional plane
medial
where does the cephalic vein start and end
starts on the dorsal venous arch and ascends up the arm ending in the axillary vein in the deltopectorial groove
varicose vein
a dilated superficial vein caused by valve failure in the superficial to deep perforating systems
what extra movements do you get at the metacarpophalygneal joints that you do not get at the interphalangeal joints
adduction and abduction
name 6 different types of movements that you get at the shoulder joint
adduction, abduction, extension, flexion rotation and cirumduction
where does evertion and invertion of the foot occur?
at the subtalar joint
how many compartments are their in the leg?
anterior, lateral, posterior superficial and posterior deep
what is the difference between the long head of triceps and the other two heads interms of their orgins
the long head orginates from the infraglenoid tubercle of the scapula, whereas the medial and lateral head originate from the humerus.
where is the surface origin of the common extensor in respect to the lateral epicondyle
it originates on the anterior side
which of the hamstrings laterally rotates the knee
biceps femoris
what is the nerve supply of the thenar muscles
median nerve
which ligament attaches the arm to the trunnk
costoclavicular
which ligament attaches the arm to the opposite arm
interclavicular
avascular necrosis
bone death from lack of blood supply
what is the position of the patients leg with a fractured neck of the femur and why?
shortened and externally rotated- as the psoas pulls the hip up and externally rotates the hip. Its action is altered by the fracture
name 5 muscles that laterally rotate the hip
quadratus femoris, obturator internus, obturator externus, piriformis, gluteus maximus
which cutaneous nerve can be used as a nerve graft? what numbness might this cause?
sural nerve, it supplies the lateral side of the foot
