gross anatomy upper limb practice question

what ligament serves to maintain the long head of the biceps in the interbuercular groove?

The transverse humeral ligament

name three ligaments that stabilize the acromioclavicular joint?

The acromioclavicular ligament, the coracoclavicular ligament, and the coracoacromial ligament.

which ligament of the elbow resists a valgus stress?

The ulnar collateral ligament

the radial head articulates with which structure on the distal end of the humerus?

The capitulum, allowing for rotation of the forearm

which carpal bones articulate with the distal end of the radius?

The scaphoid and lunate bones articulate with the distal end of the radius, facilitating wrist movement.

why are fingers slightly flexed when in a splint?

The base is larger than the head of the finger so the ligament stays stretched

The cannular effect

afferent vs efferent

afferent = sensory, goes through the nerves anteriorly

efferent= motor goes away posteriorly

list the meningeal layer and discuss their location in relation to the spinal cord?

dura mater= outer layer

arachnoid mater = middle layer

pia mater = innermost layer

Vertebrae → Epidural space → Dura mater → Subdural space (potential) → Arachnoid mater → Subarachnoid space (CSF) → Pia mater → Spinal cord

does the proximal or distal end of the clavicle make up the acrmioclavicular joint?

distal

which is more proximal in regards to the thoracic cavity, the greater or less tubercle of the humerus?

lesser tubercle

which bones make up the proximal row of carpal laterally to medially?

scaphoid, lunate, pisiform, triquetrum

which 2 bones make up the trpeziometacarpal joint?

trapezoid and metacarpal

Explain the route that the median nerve travels from the terminal branch of the brachial plexus into the palm of the hand ?

median nerve goes through the cubital tunnel

what bones make up the distal row of carpal bones laterally to medially?

trapezium, trapezoid, hook of hamate, capitate