Muscles of the Upper Limb
Video Overview & Insights
Official Ninja Nerd Website: https://ninjanerd.org
8:26 AM FORE ARM
Ninja Nerds!
In this lecture, Professor Zach Murphy will review the upper limb's anatomy using a detailed anatomical model. We will begin by examining the muscles of the shoulder region, including the deltoid, rotator cuff group (supraspinatus, infraspinatus, teres minor, subscapularis), and other scapular stabilizers such as the teres major and pectoralis major and minor, discussing their attachments, innervation, and biomechanical functions.
Goat
We will then move distally to study the arm muscles, including the biceps brachii, brachialis, coracobrachialis, and triceps brachii, before exploring the forearm muscles in both the anterior (flexor-pronator) and posterior (extensor-supinator) compartments. We will emphasize their layered arrangement, specific actions on the wrist and digits, and neural control via the brachial plexus branches.
Finally, we will review the intrinsic muscles of the hand, including the thenar, hypothenar, interossei, and lumbricals, integrating their role in fine motor control and grip strength. This lecture will provide a comprehensive, three-dimensional understanding of upper limb muscular anatomy using the model as a visual aid. Enjoy the lecture and support us below!
Sir please can you explain more on trapezius muscle
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I was wondering how the biceps Brachiii does supination of the palm
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why is it called the superficialis if its deep to a lot of or below the other forearm muscles?
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More User Perspectives
I think you missed four muscles of the forearm : abductor pollicis longus , extensor pollicics brevis extensor pollicis longus and extensor indicis
@يوسفعيسى-ج6س30 min before viva 😢
@PHeartyThanks!
@SarahJohnson-z6wAm i the only one watching to understand weight lifting better? 😂
@BaxxyNutYou didnt tell us about the hand muscles :/ It was going so well
@itsdoczakThank you
@Alvin-xu6fsI have an exam in 4 hours🤣
@youcanjustcallmemattthank you so much!!!!!!
@mahaalbreiki9198I appreciate you so much!!
@LyndiesLearningI ❤️ you
@Smrtsk8tr10:15 Pectoralis major -- flex, adduct, medial rotate the arm at shoulder
0:42 Deltoid -- (ANT.) flex, (LAT.)abduct, (REAR) extend
1:22 superior trapezius
1:28 supraspinatus -- abduct at shoulder
2:05 infraspinatus -- lateral rotate or external rotate at shoulder
2:26 teres minor -- lateral rotate or external rotate at shoulder
2:48 teres major -- extend, medial rotation at shoulder
3:31 subscapularis -- medial rotation
4:05 latissimus dorsi -- extend, medial rotate, adduct at shoulder
4:30 coracobrachialis -- flex, adduct at shoulder
5:24 bicep brachii -- flex at elbow, supination of palm
5:34 short head of the bicep brachii
6:41 long head of the bicep brachii
6:55 brachialis -- flex at elbow
7:26 lateral head of the triceps -- extend at elbow
7:31 long head of the triceps -- extend at elbow
7:36 short head of the triceps brachii -- extend at elbow
7:51 anconeus -- extend at elbow
8:32 brachioradialis -- flex at elbow
8:45 extensor carpi radialis longus -- extend at wrist
9:00 extensor carpi radialis brevis -- extend at wrist
9:10 extensor digitorum -- extend the digits
9:18 extensor digiti minimi -- extend the digits
9:24 extensor carpi ulnaris -- extend the wrist
9:40 pronator teres -- pronates the palm
9:55 flexor carpi radialis -- flex the wrist
10:01 palmaris longus -- flex the wrist
10:09 flexor carpi ulnaris -- flex the wrist
10:24 flexor digitorum superficialis (under the pronator teres, flexor carpi radialis, palmaris longus) -- flex the digit and wrist
11:13 flexor pollicis longus -- flex the pollex
11:20 flexor digitorum profundus -- flex the digits
11:49 supinator -- supination at palm
12:12 pronator quadratus
12:35 opponens pollicis
12:39 abductor pollicis brevis
12:42 flexor pollicis brevis
12:47 adductor pollicis brevis
12:56 opponens digiti minimi
13:01 abductor digiti minimi
13:05 flexor digiti minimi
One of a kind ❤
@UgwuegbuMaryType the names!!!
@m.at.24907 years later...are human upper arm muscles the same?
@kharris0465Who’s watching in December 2024🤭
@Hadassah866Who’s watching in December 2024🤭
@Hadassah866you are champion
@zehraahmed8018well, the subtitle is blocking part of the video.
@SundayVictory-c6sPpl here for science based weight lifting
👇
U SKIPPED THE EXTENSOR POLLICIS BREVIS AND LONGUS
@tadeusztu3126He managed to explain more about the arm in 13 minutes than my professor does in 3 days. Thank you for saving my grade!
@foxdrawsanyone here cramming before there exam ✋🏽
@avyon_readsi’ve got a practical later today— this was such a big help
@FuIIMetalGood video, but you forgot the brevis sandwich.
@brycenielsen2919Im doing a diploma in Fitness (personal training + strength and conditioning), and you, my good sir, explain things better than my actual teachers! I stand and salute you 🫡
@WatEvaBro77hey, i pulled something on the back of my arm a few days ago... is it the tricep? it hurts most at the back of the arm just the same height as the armpit.. i was climbing up a metal pole... now every time i try to climb things like trees etc its agony.. feels like sharp pain but also a burning and the pain radiates down the whole arm after using it in the same way as when i had the injury... right down to the elbow and right round the back to my shoulder blade. it doesnt hurt when im hanging or pushing upward it only hurts when i put myself upwards...
- which muscle is injured? is it best to just rest it or keep doing exercise with it but with less force?
Great man really appreciated just life saviour of medicos ✨🌟
@shiningstars9970❤❤❤❤
@AntorApuWho is watching few hours before exam?
@rehanahmed744❤
@mortezaahmadi3105l ❤ ninja
@YoumnaNourEldeinGood morning this is very interesting
My you make for the blook vessel
nice
@beastmode71070:15 Pectoralis major -- flex, adduct, medial rotate the arm at shoulder
0:42 Deltoid -- (ANT.) flex, (LAT.)abduct, (REAR) extend
1:22 superior trapezius
1:28 supraspinatus -- abduct at shoulder
2:05 infraspinatus -- lateral rotate or external rotate at shoulder
2:26 teres minor -- lateral rotate or external rotate at shoulder
2:48 teres major -- extend, medial rotation at shoulder
3:31 subscapularis -- medial rotation
4:05 latissimus dorsi -- extend, medial rotate, adduct at shoulder
4:30 coracobrachialis -- flex, adduct at shoulder
5:24 bicep brachii -- flex at elbow, supination of palm
5:34 short head of the bicep brachii
6:41 long head of the bicep brachii
6:55 brachialis -- flex at elbow
7:26 lateral head of the triceps -- extend at elbow
7:31 long head of the triceps -- extend at elbow
7:36 short head of the triceps brachii -- extend at elbow
7:51 anconeus -- extend at elbow
8:32 brachioradialis -- flex at elbow
8:45 extensor carpi radialis longus -- extend at wrist
9:00 extensor carpi radialis brevis -- extend at wrist
9:10 extensor digitorum -- extend the digits
9:18 extensor digiti minimi -- extend the digits
9:24 extensor carpi ulnaris -- extend the wrist
9:40 pronator teres -- pronates the palm
9:55 flexor carpi radialis -- flex the wrist
10:01 palmaris longus -- flex the wrist
10:09 flexor carpi ulnaris -- flex the wrist
10:24 flexor digitorum superficialis (under the pronator teres, flexor carpi radialis, palmaris longus) -- flex the digit and wrist
11:13 flexor pollicis longus -- flex the pollex
11:20 flexor digitorum profundus -- flex the digits
11:49 supinator -- supination at palm
12:12 pronator quadratus
12:35 opponens pollicis
12:39 abductor pollicis brevis
12:42 flexor pollicis brevis
12:47 adductor pollicis brevis
12:56 opponens digiti minimi
13:01 abductor digiti minimi
13:05 flexor digiti minimi
Thank you 😊
@PaulKojoNasiruAlaladeBRO IDK HOW TUH STIDYYYY
@hydra132312:18 pronator quadratus
@sizzling_shiyam11:16 Flexor pollicis longus
@sizzling_shiyam