Practical 1 Flashcards
What is/are the origin, insertion, and actions of the trapezius?
Origin- spinal processes
Insertion- scapular spine
Actions- extend, laterally flex, rotate the head & neck; elevate/depress, upwardly rotate scapula
What is/are the origin, insertion, and actions of the levator scapula?
Origin- cervical vertebrae
Insertion- medial border of scapula
Actions- elevation & downward rotation of the scapula
What is/are the origin, insertion, and actions of the rhomboids?
Origin- spinous processes c7 to t5
Insertion- medial border of scapula
Actions- retraction, downward rotation, elevation of the scapula
What is/are the origin, insertion, and actions of the serratus anterior?
Origin- ribs
Insertion- medial border of the scapula
Actions- protraction & upward rotation of the scapula, holds medial border against rib cage
What is/are the origin, insertion, and actions of the pectoralis minor?
Origin- ribs on anterior surface I
nsertion- coracoid process
Actions- depression, protraction, downward rotation of the scapula
What is/are the origin, insertion, and actions of the supraspinatus?
Origin- supraspinus fossa
Insertion- greater tubercle of humerus
Action- abduction of glenohumeral
What is/are the origin, insertion, and actions of the infraspinatus?
Origin- infraspinus fossa
Insertion- greater tubercle of humerus
Action- external rotation & horizontal abduction of glenohumeral
What is/are the origin, insertion, and actions of the teres minor?
Origin- lateral border of scapula
Insertion- greater tubercle of humerus
Action- external rotation & adduction of glenohumeral
What is/are the origin, insertion, and actions of the subscapularis?
O- subscapular fossa
I- lesser tubercle of humerus
A- internal rotation of glenohumeral
What is/are the origin, insertion, and actions of the deltoids?
O- clavicle, acromion process, spine of scapula
I- deltoid tuberosity
A- anterior: flexion; middle: abduction; posterior: extension of glenohumeral
What is/are the origin, insertion, and actions of the latissimus dorsi?
O- thoracic, spinous processes
I- bicipital groove
A- adduction, internal rotation, & extension of glenohumeral
What is/are the origin, insertion, and actions of the teres major?
O- lateral border of scapula
I- crest of lesser tubercle
A- adduction, internal rotation, & extension of glenohumeral
What is/are the origin, insertion, and actions of the pectoralis major?
O- clavicle & sternum
I- bicipital groove
A- adduction, internal rotation, horizontal adduction, flexion of glenohumeral
What is/are the origin, insertion, and actions of the subclavious?
O- first rib
I- clavicle
A- stabilizes sternoclavicular joint
What is/are the origin, insertion, and actions of the triceps brachii?
O- infraglenoid tubercle, posterior surface of humerus
I- olecranon process
A- extends elbow and glenohumeral
What is/are the origin, insertion, and actions of the biceps brachii?
O- supraglenoid tubercle, coracoid process
I- radial tuberosity
A- flexes elbow & glenohumeral, supination
What is/are the origin, insertion, and actions of the coracobrachialis?
O- coracoid process
I- humeral shaft
A- flex & adduct the glenohumeral
Name the muscles responsible for abduction of the glenohumeral joint.
- supraspinatus
- teres minor
- middle deltoid
Name the muscles responsible for adduction of the glenohumeral joint.
- latissimus dorsi
- teres major
- pectoralis major
- coraco brachialis
Name the muscles responsible for external rotation of the glenohumeral joint.
- infraspinatus
- teres minor
What muscles are responsible for internal rotation of the glenohumeral joint?
- subscapularis
- latissimus dorsi
- teres major
- pectoralis major
Name the muscle responsible for horizontal abduction of the glenohumeral joint.
- infraspinatus
Name the muscles responsible for horizontal adduction of the glenohumeral joint.
- pectoralis major
- teres minor
Name the muscles responsible for flexion of the glenohumeral joint.
- anterior deltoid
- pectoralis majorj
- biceps brachii
- coracobrachialis
Name the muscles responsible for extension of the glenohumeral joint.
- posterior deltoid
- latissimus dorsi
- teres major
- triceps brachii
Name the muscles responsible for upward rotation of the scapula.
- trapezius
- serratus anterior
Name the muscles responsible for downward rotation of the scapula.
- levator scapula
- rhomboids
- pectroalis minor
Name the muscles that elevate the scapula.
- trapezius
- rhomboids
- levator scapula
Name the muscles that depress the scapula.
- trapezius
- pectoralis minor
Name the muscles that protract the scapula.
- serratus anterior
- pectoralis minor
Name the muscle that retracts/adducts the scapula.
rhomboids
