Pectoral girdle- Scapula Flashcards
Scapula has two surfaces, three borders and ____ angles
three
Articulations of the scapula are on which side?
articulations on the distal side.
Suspended from the vertebral column, ribs and skull by what?
Muscles
With what does the scapula articulate with?
Humerus: Glenoid fossa/cavity
Clavicle: Acromion
What muscle runs from the Lateral acromion and lower border of spine: (also from clavicle) to humerus (deltoid tuberosity)?
M. deltoid:
The muscle deltoid is responsible of what?
flexion, extension, rotation, abduction of arm
Which muscle runs from spine to Acromion (also to clavicle, superior nuchal line (lateral)) and is responsible of the elevation, adduction, depression and rotation of scapula?
M. trapezius:
What are the attachment points of M. biceps Brachii?
From Supraglenoid tubercle and coracoid process to radius, radial tuberosity
What does biceps brachii do?
supination and flexion of forearm
Which muscle runs from the Infraglenoid tubercle : (also from humerus, posterior diaphysis) to Ulna, olecranon?
M. triceps brachii:
M. triceps brachii is responsible of…
extension of forearm
M. pectoralis minor runs from ribs 3-5 to where?
to the Coracoid process:
M. pectoralis minor is responsible of
drawing scapula forward/downward
Which muscle runs from the Subscapular fossa to humeurs, proximal?
M. Subscapularis
M. Subscapularis is responsible of
medial rotation of arm; shoulder stabilization
M. supraspinatus, responsible of adduction of arm, runs from _________ _________ to humerus, greater tubercle.
Supraspinous fossa:
M. infraspinatus, responsible of lateral rotation and abduction of arm, runs from _____ _______ to humerus, infraspinous fossa
Infraspinous fossa:(rotator cuff)
M. Teres minor and M. teres major attach to the _______ _______ of the scapula.
Axillary border (lateral) – dorsal surface:
M. teres minor runs from the axillary border of scapula to the medial lip of humerus. True or false
False, M. teres minor runs to humerus, greater tubercle
M. teres major runs to the medial lip of interubercular groove of humerus
M. teres major is responsible of lateral rotation, adduction and extension of arm. True or false
False, M. Teres major is responsible of the medial rotation, adduction and extension of arm.
M. teres minor is responsible of lateral rotation, addcution of arm and stabilisation
M. serratus anterior runs from ribs 1-8/9 to the Vertebral/medial border-anterior- of scapula. M. serratus anterior ……
rotates/protracts scapula for arm flexion and abduction
Name three muscles on the Vertebral/medial border – posterior- of scapula.
M. levator scapulae
M. rhomboideus minor
M. rhomboideus major
M. levator scapulae runs from C1-4, superior posterior tubercles of transverse processes to the vertebral/medial border (posterior) Scapula and is responsible of elevation and rotation of scapula- True or false
True
M. rhomboideus minor from C7/T1, at root of spine (posterior) and M. rhomboideus major from T2-5, inferior (posterior) are both responsible of
retraction, elevation, stabilization of scapula. True or false
True
Supra-scapular foramen or notch is caused by what?
Ossification of supra-scapular ligament
A non-metric trait Circumflex sulcus can be described as ….
Groove on postero-lateral border of scapula
Separate (unfused) acromial epiphysis, Acromial facet,
Facet on inferior surface of acromion, Acromion shape
and Inferior angle shape are all non-metric traits of scapula. True or false
True
