MSK DROP IN OSCE 2018 Flashcards
Identify the structure labelled A – be specific?
Muscle that runs through the inter tubercular groove of the humerus?
The long head of the biceps brachii
Give the spinal nerve root values of the nerve labelled B? (Musculocutaneous nerve)
C5-7
Identify the structure labelled A? (Present at the medial humeral epicondyle)
The Ulnar nerve
Give the innervation of the muscle labelled B? (Pronator teres)
Median nerve
Identify the structure labelled A? (Palmer surface of the hand, think thumb)
Adductor pollicis
Give the innervation of the muscle labelled? (3rd lumbrical labelled)
Ulnar nerve
Give the actions of the muscle labelled A? (teres major labelled)
Adduction & Medial rotation of arm/shoulder
Give the innervation of muscle labelled B? (Deltoid)
Axillary nerve
Identify the structure labelled A? (wet dorsal hand, extends thumb)
Extensor pollicis longus
What type of joint is found at B? (PIP joint labelled)
Synovial hinge
Give two (2) actions of the muscle labelled A? (gluteus medius labelled)
Abduction & Medial rotation of hip
dentify the muscle labelled B?
Piriformis
Give the innervation of the muscle labelled B? (Gracilis labelled)
Obturator n
What is the action of muscle B on the hip joint? (semitendinosus labelled)
Extension
Give the innervation of the muscle labelled B? (fibularis longus m. labelled)
Superficial fibular n
Identify the muscle labelled A? (sole of foot muscle)
Quadratus plantae
Give the innervation of the muscle labelled B? (flexor digitorum longus tendon in sole of foot labelled)
Tibial nerve
Disrupted sensation over region A may be associated with injury to which peripheral nerve? (Lateral dorsum of hand)
Radial nerve
Identify B, artery within snuffbox?
Radial artery
Disrupted sensation over dermatome A (thumb) may be associated with dysfunction of which spinal segment?
C6
Name two muscles in the hand innervated by nerve B? (Median nerve)
FPB, APB, OP (1 mark each), thenar muscles (1 mark), lumbricals 1 & 2 (1 mark)
Which way the shoulder rotates when the muscle B contracts? (Infraspinatus)
Lateral rotation
Which structure has its distal attachment to A? (Tibial tuberosity)
Quadriceps femoris tendon, Ligamentum patella or patellar ligament
Which vein lies immediately anterior to A? (Medial malleolus)
Great saphenous vein
What movement of the foot, if extreme, may fracture A? (Medial malleolus)
Eversion
Which excessive hip movement the structure B prevents? (Iliofemoral ligament )
Extension or hyperextension
Identify the structure labelled A? (Main muscle on anterior of lower leg)
Soleus
What is the function of muscle B? (Popliteus)
Unlocks the knee joint or flexion of knee
Name two common actions of muscles A on hip joint? (Sartorius)
Abduction, flexion and lateral rotation
What is the innervation of muscle A? (Sartorius)
Femoral nerve
Which muscle does A pierce to reach the popliteal fossa? (Femoral artery)
Adductor magnus
What is the root valve of nerve B? (Femoral nerve)
L2, L3 and L4
What movement occurs at joint A? (Ankle joint)
Dorsiflexion and plantar flexion
Identify the bone labelled B?
Navicular
