Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
19 Cards in this Set
- Front
- Back
Superficial muscles of the back
|
Control upper limb movement
Trapezius Latissimus Dorsi Rhomboids Levator Scapulae |
|
Latissimus Dorsi
|
extends, adducts, medially rotates humerus
|
|
Latissimus Dorsi origin
|
Spinous processes of T7 - T12
Iliac crest thoracolumbar fascia |
|
Latissimus Dorsi insertion
|
bicipital groove of humerus
|
|
Latissimus Dorsi innervation
|
thoracodorsal nerve
ventral rami of C6, 7, 8 |
|
Trapezius
|
shrugs shoulders
|
|
Trapezius origin
|
external occipital protuberance
spinous processes of C7- T12 nuchal ligament |
|
Trapezius insertion
|
acromion
scapula spine clavicle |
|
Trapezius innervation
|
Spinal Accessory Nerve (Cranial Nerve 11) for motor
C3&4 for sensory |
|
Thoracolumbar Fascia
|
attaches to spinous/transverse processes and is site of attachment for many back muscles
|
|
Intermediate Muscles of Back
|
function in respiration
Serratus posterior superior and inferior |
|
Serratus posterior superior
|
deep to rhomboids
|
|
Serratus posterior inferior
|
deep to Lat
|
|
Deep Back Muscles
|
Act on vertebral column; innervated by dorsal rami
|
|
Superficial Deep Back muscles
|
Splenius Capitis and Splenius Cervicis; contract both to extend neck; one for ipsilateral motion
|
|
Intermediate Deep Back muscles
|
Erector Spinae Complex
iliocostalis longissimus spinalis |
|
Erector Spinae Complex action
|
Work together to extend spine; lateral flexion when used unilaterally
|
|
Deep Deep Back Muscles
|
Transversospinalis Group; important postural, rotational, prociceptive muscles. Course from transverse process of vert to spinal process of vertebrae above.
|
|
Transversospinalis Group
|
Semispinalis - superficial, spans 4-6 segments
Multifidus - intermediate, 2-4 Rotatores - deepest, 1-2 |