Superficial Back Muscles (Division, Origin, Insertion, Function)
Content
0:00 Introduction
0:09 Division of the Superficial Muscles
0:43 Trapezius
2:04 Latissimus Dorsi
2:55 Rhomboid Major
3:13 Rhomboid Minor
3:33 Levator Scapulae
3:58 Serratus Posterior Superior
4:20 Serratus Posterior Inferior
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Superficial Muscles of the Back
- Muscles of the 1st Layer
○ Trapezius
○ Latissimus dorsi
- Muscles of the 2nd Layer
○ Rhomboid Major
○ Rhomboid Minor
○ Levator Scapulae
- Muscles of the 3rd Layer
○ Serratus Posterior Superior
○ Serratus Posterior Inferior
Trapezius
musculus trapezius
- Superior Part
Origin:
- Superior Nuchal Line
- External Occipital Protuberance
- Nuchal Ligament
Insertion:
- Acromial end of clavicle
- Acromium of Scapula
- Middle Part
○ Origin: Spinous Process of C7-T3/T4
○ Insertion: Spine and Acromium of Scapula
- Inferior Part
○ Origin: Spinous Process of T4-T12
○ Insertion: Spine of Scapula
Latissimus dorsi
Musculus latissimus dorsi
- Origin:
Spinous Process of T7-T12
Thoracolumbar Fascia
Iliac Crest
Inferior surface of ribs 9-12
Inferior angle of Scapula
- Insertion: Crest of Lesser Tubercle (Humerus)
Crista tuberculi minoris humeri
Rhomboid Major
musculus rhomboideus major
- Origin: Spinous Process of T1-T4
- Insertion: Lower 2/3 of Medial Border of Scapula
margo medialis scapulae
- Function:
Elevates and retracts the scapula
Internal rotation of the scapula
-
Rhomboid Minor
musculus rhomboideus minor
- Origin: Spinous Process of C6-C7
- Insertion: Upper 1/3 of Medial Border of Scapula
margo medialis scapulae
- Function:
Elevates and retracts the scapula
Internal rotation of the scapula
Levator Scapulae
musculus levator scapulae
- Origin: Spinous Process of C1-C4
- Insertion: Superior Angle of Scapula
angulus superior scapulae
- Function:
Elevates the Scapula
-
Serratus Posterior Superior
Musculus serratus posterior superior
- Origin: Spinous Process of C6-T2
- Insertion: External Surface of 2nd-5th Ribs
- Function:
Elevates the Ribs (Inspiration)
Serratus Posterior Inferior
Musculus serratus posterior inferior
- Origin: Spinous Process of T11-L2
- Insertion: External Surface of 9th-12th Ribs
- Function:
Pulls the ribs downward (expiration)
Пікірлер: 8
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Hey! Thanks for helping out these poor souls hehe. Just a correction on the origin of Levator Scapulae. It must be from the post. tubercles of transverse process and not spinous process.
Hii meditayy! I'm glad that I found your channel and vedios. You're truly amazing. Now Iam watching all your vedios. Thankyou for making our studies easier💜
@TaimTalksMed
2 жыл бұрын
Happy to hear! 😊
Great video!! Thank you!!
2:36 doesn’t the latissimus dorsi insert in the floor of the intertubercular sulcus ?
Excelent
All muscle Origin wrong 😂 please edit this video