⭐ Longissimus Muscle Anatomy ⭐
The longissimus muscle has three sections: the longissimus thoracis, longissimus cervicis, and longissimus capitis. It is also part of the erector spinae muscle group. The anatomy of the longissimus is below. Watch the full video for an in depth explanation.
💪 Origins:
🔴 Longissimus capitis: transverse processes of C4-T4
🔴 Longissimus cervicis: transverse processes of T1-T4
🔴 Longissimus thoracis: dorsal surface of the sacrum and median sacral crest, medial surface of posterior superior iliac spine, and transverse processes of vertebrae L1-L5
💪 Insertions:
🔵 Longissimus capitis: posterior edge of the mastoid process
🔵 Longissimus cervicis: transverse processes of vertebrae C2-C6
🔵 Longissimus thoracis: transverse process of vertebrae T1-T12 and the dorsal aspect of ribs 3-12 (between the rib’s angle and tubercle)
💪 Actions:
🟢 Bilateral contraction: extension of trunk and neck
🟢 Unilateral contraction: lateral flexion of the trunk and the neck
💪 Nerve:
🟣 Lateral branches of the corresponding spinal nerves’ posterior rami
💪 Artery:
🟠 Vertebral artery, deep cervical artery, occipital artery, transverse cervical artery, superior intercostal artery, posterior intercostal artery, subcostal artery, lateral sacral artery, and median sacral artery
❗ ❗ ❗ My other erector spinae muscle group videos ❗ ❗ ❗
Iliocostalis: • Iliocostalis Anatomy: ...
Spinalis: • Spinalis Anatomy: Orig...
Erector Spinae Muscle Group: • Erector Spinae Anatomy
Chapters:
0:00 - Intro
0:13 - Location & overview of the longissimus
1:47 - Origin of the longissimus
3:25 - Insertion of the longissimus
5:04 - Actions of the longissimus
⭐ Want to learn more about the longissimus? Then check out the full article on the Bodyworks Prime website:
bodyworksprime.com/longissimus/
⭐ If you would like some help memorising the longissimus' information then be sure to check out the free flashcards here: bodyworksprime.com/longissimu...
#BodyworksPrime #Anatomy #Longissimus #ErectorSpinae
4 июл 2024
