Test 1: textbook Flashcards
what muscles are included in extrinsic muscles?
trapezius latissimus dorsi levator scapula rhomboid major rhomboid minor
What are the 3 layers of the intrinsic muscles?
superficial
intermediate
deep
What group of muscles falls under the superficial layer?
Splenius muscles
what is the general function of the splenius muscles?
extend and rotate the head and neck
where does the splenius muscles extend from and attach to?
extend from spinous process of cervical and thoracic vertebrae to the occipital bone and transverse process of C1 (atlas) and C2 (axis).
what group of muscles fall under the intermediate layer?
erector spinae
What are the general functions of the erector spinae?
these are the main extensors and stabilizers of the THORACIC and LUMBAR vertebral clolumn
Where does the erector spinae extend from and attach to?
extends from midline of the back to the angle of ribs laterally
What muscles fall under the deep layer?
Transversospinalis
Deep segmental
What is the general function of the deep layer muscles?
Produce small movements along entire vertebral column
Where does the transversospinalis fall in between?
transverse process and spinous process
What does the deep segmental muscles do?
interspinales and intertransversarii-connect adjacent vertebrae
levator costarum-connect vertebrae to ribs
Extrinsic muscles function
stabilize and move upper limbs
What are the three classifications of joints
fibrous
cartiliginous
synovial
what are the 6 types of synovial joints?
hinge pivot condyloid saddle plane ball and socket
