00:01
Hello students, in this question you have been given certain movements and we'll be discussing about those.
00:08
So first one is glenohumeral flexion to 90 degrees.
00:24
So this movement is primarily performed by the anterior deltoid muscle with assistance from clavicular head of the pectoralis major and the coracobrachialis muscle.
00:58
So this, so both of them coracobrachial muscles.
01:07
These muscles they contract concentrically to lift the arm, lift the arm up to shoulder level.
01:20
Coming to the second one, full elbow extension, the tricep brachii muscle, tricep brachii, it is what is responsible for the extending of elbow joint and it also contracts concentrically to straighten, straighten the arm.
01:57
Coming to the third one, wrist extension, wrist extension to 70 degrees.
02:10
Here the wrist extensor muscles as the name suggests are taking part including the carpi radialis, extensor carpi ulnaris and the extensor digitorum muscle, digitorum muscle.
02:35
So these are responsible for the wrist extension movement...