Back Dissection Flashcards
What are the superficial muscles of the back?
- Trapezius
- Latissimus dorsi
- Rhomboid major
- Rhomboid minor
- Levator scapulae
What are the Deep muscles of the back?
- Iliocostalis
- Longissimus
- Spinalis
What are the Intermediate muscles of the back?
Serratus posterior superior
Serratus posterior inferior
What is the origin of the Iliocostalis Muscle?
Iliac crest and sacrum
Where does the Iliocostalis muscle insert?
Ribs
Cervical transverse processes
What is the origin of the Longissimus Muscle?
Posterior sacrum
Iliac crest
Sacrospinous ligament
Spinous process of lumbar and sacral vertebrae
Where does the Longissimus muscle insert?
Ribs
Transverse processes of Cervical / thoracic vertebrae
Mastoid process
What is the origin of the Spinalis Muscle?
Spinous processes of the upper lumbar and lower thoracic vertebrae
Where does the Spinalis muscle insert?
Spinous processes of T1 through T8
Occipital Bone
What is the origin of the Serratus Posterior Superior muscle?
Spinous processes of C7 through T3
Where does the Serratus Posterior Superior muscle insert?
Superior border of ribs 2 through 5
What’s the origin of the Serratus Posterior Inferior muscle?
Spinous processes of T11, T12, L1 and L2
Where does the Serratus Posterior Inferior muscle insert?
Inferior borders of ribs 9 through 12
What’s the origin of the Rhomboid Minor muscle?
The Spinous processes of C7 through T1
Where does the Rhomboid Minor muscle insert?
Medial border of the scapula
At the spine of the scapula
What is the origin of the Rhomboid Major muscle?
Spinous processes of T2 through T5
Where does the Rhomboid Major muscle insert?
Medial border of the scapula
Below scapular spine
What’s the origin of the Levator Scapulae muscle?
Transverse processes of C1 through C4
Where does the Levator Scapulae muscle insert?
Medial border of the scapula
Above scapular spine
What is the origin of the Latissimus Dorsi muscle?
Spinous processes of T6 through L5
Ribs 8 through 12
Iliac Crest
Where does the Latissimus Dorsi muscle insert?
Floor of intertubercular groove of the humerus
What is the origin of the Trapezius muscle?
Occipital bone
Spinous process of C7 through T12
Where does the Trapezius muscle insert?
The lateral 1/3rd of the clavicle
Acromion
Spine of the scapula
The prominence at the center of the external surface of the occipital bone
Occipital Protuberance
Know location of Scapula parts:
Spine of the Scapula
Medial border of the Scapula
Know location of Iliac crest
Outward extension of the shoulder blade, that forms the point of the shoulder
Acromion (Know how to locate it)
What’s another word for ribs?
Costals
How many cervical vertebrae do we have?
7
How many thoracic vertebrae do we have?
12
How many lumbar vertebrae do we have?
5
