UPPER LIMB MUSCLES (1/6) - PECTORAL REGION
ฝัง
- เผยแพร่เมื่อ 15 ก.ย. 2024
- Muscles of the upper limb are found in the pectoral region, shoulder, upper arm, anterior and posterior compartments of the forearm, and in the hand. In this first video, we will cover muscles of the pectoral region.
The pectoral region is on the anterior chest wall and has four muscles that move the arm - pectoralis major and minor, serratus anterior, and the subclavius.
Pectoralis major is the most superficial of these pectoral muscles and has two heads - a smaller clavicular head and a larger sternal-costal head. The clavicular head originates from the clavicle, while the sternal head originates from the sternum, as well as the superior six costal cartilages and the aponeurosis of the external oblique muscle. Both heads insert into the humerus at the lateral lip of the bicipital groove of humerus.
The pectoralis major adducts and medially rotates the arm. The sternal-costal head is the prime mover of the push-up. It causes extension of the arm at the shoulder. Meanwhile, the clavicular head causes flexion of the arm at the shoulder.
Pectoralis minor is underneath pectoralis major. It originates from the 3rd to 5th ribs and inserts into the coracoid process, which is part of the scapula. The pectoralis minor pulls the scapula in against the thoracic wall, stabilizing it.
Also anchoring the scapula to the ribcage is the serratus anterior. The serratus anterior is found along your sides, sitting atop your ribs with its branches originating from ribs 1-8 or from ribs 1-9. Two branches usually arise from the second rib, so there is one more branch than the number of ribs from which the branches originate. The serratus anterior attaches to the costal, or rib-facing, surface of the scapula’s medial border.
The serratus anterior can be divided into three parts based on post of insertion - superior, intermediate, and inferior. This muscle holds your scapula against your ribcage. It also pulls your scapula forward and around the ribcage, for example when you throw a punch. By allowing your scapula to rotate past 90 degree abduction, it allows you to raise your arm over 90 degrees.
Finally, we come to the subclavius, which runs horizontally underneath the clavicle. It originates from the junction of the first rib and its costal cartilage, inserts into the inferior surface of the clavicle, and serves to anchors the clavicle and moves it down and forward. Also, in the event of a broken clavicle, it protects the underlying brachial plexus, which is responsible for both cutaneous and muscular innervation of the upper limb.
LEARN ALL THE UPPER LIMB MUSCLES QUICKLY THROUGH SONG!
• UPPER LIMB MUSCLES SON...
LEARN ABOUT THE BRACHIAL PLEXUS!
• THE BRACHIAL PLEXUS AN...
3D MODELS FROM:
www.turbosquid...
www.turbosquid...
As a physiotherapist, we all know how important muscles is for us. Thankyou so much for this.
Exactly😅
in first year med... this is really helpful, I love how visual it is! Covers a lot of useful detail, thank you!
Just realised, it takes 30min to make notes for ur 5 min video.. loads of information n m here for it.. thank you
Imagine how long it takes him to make it🤧... Thanks bro
Me as Teacher recommend to All .Very informative and easy to learn
Iam new here, iam from india, iam shocked about your teaching style...
OHHHHHH MYYYYY GODDDDD.....
Very clear concept, and simple easy explanation..
Finally after watching video, I BECOME FAN OF YOU....
KEEP ROCKING....
How can a video be so good 🥺 Thank Youuu.
Fantastic video, the sternal head is dominant when push-ups are performed with elbows flaring out (not very good for the shoulder) but when the arms are close to the body, the clavicular head is the prime mover, to train both, the arms need to be at 45 degrees, this is just the speculation of a guy who likes calisthenics
Peace!
Sir,
Thank You for this nice explanations.
București, RO, UE
I'm literally speechless before playing the video I thought that what will be there in this much short video but after watching I wonder how when and why it ended.✌👍👍grt work ND lots of informative 👍
Glad you liked it! ^_^
@@NeuralAcademy ❤✌
This is awesome...it helped me for preparing for neet...itx awesome yr❤️❤️❤️❤️❤️❤️
Continue with these videos ❤️
That’s amazing it’s really helpful
Love this video! Extremely helpful for Anatomy
Wow this kind of teaching is actually fun n easy to understand loved it 💖..keep rocking 😊
Very cool video on how the muscles look and work
Thank you so much 😍😘
I have exam after 5 hours. 😂❤️.
Thx
GOOD LUCK U CQN DO IT,, LAST TWO HOURS
@@artsynimki3204 thank u ,,, YES I did well
Well done brother
Awesome
Useful
Osm teaching video sir 👍👍👍
Loved it! Waiting for the entire series 😁
OMG this effort is so different 👌🏼
Awesome.....🥰🥰 nice sir.. thank you so much ❤️
Informative and easily understood this chapter 🥳thanku
I cannot thank you more
Such a nice presentation 😊😊 really loved it ❤️❤️❤️
Thank you so much sir it helped me alot to learn anatomy,100/10👍🏻
This really made it enjoyable
Wow really it is so amazing and interesting💙
Noo thanks to you for making videos
Very useful and students can learn easily
Great job
Very helpful videos ❤
This is awesome way👏👏🙌
Thx so much 😍👍
please take your time
superb
Super 💪🏻
Great!!!sir
Can you please do a vedio regarding nervous system in detail .
Nice 👍
Next video kab AA ge😮
I like your voice ❤️
can anyone please answer which muscle in pectoral region has more power for a unit of volume?
2:05 wait , i think this movement is call flexion not abduction. ?
Muscles of pectoralis region
Bro is ripped 😮
Grate, 👍🏻
All massage students thanks you ❤️💕
So guys have a less defined muscle than ladies do when it comes to the pectoral muscles?
Yeah
what it mean by pector?
Can you put translation ti Arabic please??
Good wowwwwww
See this is why it makes no sense training upper body using a split routine (chest/shoulders/triceps, back/biceps). The back, chest and shoulders all work together on so many movements.
can i marry you?
2:13
Awesome