Anatomy Flashcards
What does the femoral come off of
External iliac. Internal iliac supplies pelvic
What artery are you palpating on the medial malleolus?
Post tib. Branches off tibiofibular off popliteal off femoral.
What artery are you palpating on the dorsum of the foot?
Dorsalis pedis off anterior tib off popliteal.
Cilostazol
PDE III inhibitor–> vasodilation and inhibition of platelet aggregation
Pain in left shoulder, head and neck wrenched to right during accident. Left upper extremity hangs by side in medial rotation. Forearm extended and pronated, wrist frozen in dorsiflexion.
Erb-Duchenne palsy. C5 and C6 (upper trunk) of brachial plexus. Assassinated is C5-C6 (gun fingers), innervates deltoid (shoulder flexion and abduction) and teres minor (lateral rotation). Musculocutaneous is 3 muskateers (C5-C7) –> supinator (biceps) and flexors (brachialis and biceps). Stuck in dorsiflexion is radial.
What innervates the medial dorsum of the hands?
Ulnar nerve
Where do you do an LP?
Between L4 and L5
What layers must you go through to hit the CSF when doing an LP?
Supraspinous ligament, then interspinous ligament, then ligamentum flavum then epidural space then dura mater, then arachnoid, subarachnoid –> where CSF drawn
Most common type of disc herniation?
Posterolateral. Nucleus pulposus through the annulus fibrosis (ring around central elastic cartilage), can hit nerves passing. Hits nerve with same number as vertebra below intervertebral disk.
Naming scheme for the spinal nerves
C1-C7 exit superior to vertebra with same number. CHANGES AT 8, which exits INFERIOR to C7. So C7 bone has two nerves, one above and one below. C7 C8 sandwich! Then, spinal nerves exit BELOW vertebrae with same number.
Hernia that goes through deep inguinal ring toward scrotum. Can form hydrocele. Due to processus vaginalis not closing. What is it and it is congenital or acquired?
Indirect hernia. Congenital.
Hernia of Hesselbach’s triangle. What type of hernia is it and what will it be covered by?
Direct inguinal hernia. Bulging through transversalis fascia, but still covered by external spermatic fascia (aponeuroses of external oblique). And not going through deep inguinal ring.
Femoral hernia
Most common in women. Protrudes through femoral canal. Leading cause of bowel strangulation –> fever, ischemia, necrosis of bowel
What forms the deep vs superficial inguinal ring?
Deep = transversalis fascia, superficial inguinal = external oblique aponeuroses, superolateral to pubic tubercle.
What happens to vocal cords with choking? What muscle needs to be active to abduct the vocal cords?
Vocal cords tense when choking on food in larynx – laryngeal muscles spasm. Posterior cricoarytenoid is only muscle that can abduct vocal cords. Innervated by recurrent laryngeal.
