Muscles of the Scapula Flashcards
What is the technical name of the joint where the scapula meets the ribcage?
Scapulothoracic joint
What is the technical name of the shoulder blade?
Scapula
What are the possible movements of the scapula?
Elevation Depression Protraction Retraction Upward rotation Downward rotation
What is the name of the parts of the vertebrae that stick out to either side ?
Transverse processes
What is the name of the angled corner at the top of the scapula ?
Superior angle of the scapula
What does the word levator mean?
To lift
What is the insertion of levator scapulae?
Superior angle of the scapula
What is the origin of levator scapulae?
Transverse processes of vertebrae C1-C4
What are the two main actions of levator scapulae?
Elevation of the scapula
Downward rotation of the scapula
What is the name of the part of each vertebra that sticks out posteriorly?
Spinous processes of the vertebrae
What is the name of base of the horizontal ridge on the scapula?
Root of the spine of the scapula
What shape does the name rhomboids refer to?
A parallelogram
What is the name of the angled corner at the bottom of the scapula?
Inferior angle of the scapula
What is the name of the edge of the scapula that is closest to the midline of the body?
Medial border of the scapula
What is the insertion of the rhomboids major portion?
Vertebral border from the root of the spine of the scapula to the inferior angle
What is the origin of the rhomboids major portion?
Spinous processes T2-T5
What is the origin of rhomboids minor portion?
Spinous processes C7 and T1
What is the insertion of the rhomboids minor portion?
Root of the spine of the scapula
What are the two primary actions of the rhomboids?
Retraction (adduction) of the scapula
Downward rotation of the scapula
What is the name of the bone at the back and the bottom of the skull?
Base of the occiput
What is the name of the tendinous sheath at the nape of the neck?
Ligamentum nuchae
What shape does the word trapezius refer to?
A trapezium
What is the name of the portion of the collarbone farther away from the midline of the body?
Lateral clavicle
What is the name of the projection of bone at the very edge of the shoulder?
Acromion process
Where is the insertion of the upper portion of trapezius?
Lateral clavicle and acromion process
Where is the insertion of the middle portion of trapezius?
Spine of the scapula
Where is the insertion of the lower portion of trapezius?
Root of the spine of the scapula
Where is the origin of the upper trapezius?
Base of the occiput, ligamentum nuchae, and spinous processes of vertebrae C1-C7
Where is the origin of the middle section of the trapezius?
Spinous processes of vertebrae C7-T3
Where is the origin of the lower trapezius?
Spinous processes T4-T12
What is the action that all sections of trapezius contribute to?
Upward rotation of the scapula
What action does the upper trapezius do?
Elevation of the scapula
What action does the middle trapezius do?
Retraction (adduction) of the scapula
What action does the lower trapezius do?
Depression of the scapula
What is the name of the edge of the shoulder blade closer to the midline of the body?
Medial border of the scapula
What is the name of the corner of the scapula closest to the head?
Superior angle of the scapula
What does the word serratus mean?
To saw
What is the name of the corner of the scapula farthest from the head?
Inferior angle of the scapula
What is the insertion of the serratus anterior?
Medial border of the scapula
What is the origin of the serratus anterior?
Surface of the upper 8 or 9 ribs
What are the actions of serratus anterior?
Protraction of the scapula
Stabilization of the scapula to the rib cage
Assists in upward rotation of the scapula
What is the name for the beak-like projection on the front of the scapula?
Coracoid process
What muscle does pectoralis minor lie deep to?
Pectoralis major
What is the insertion of pectoralis minor?
Coracoid process
What is the origin of pectoralis minor?
Ribs 3, 4, and 5
What are the three actions of pectoralis minor?
Depression of the scapula
Downward rotation of the scapula
Protraction (abduction) of the scapula
