Pectoral Region, Deltoid And Axilla Flashcards
What are the types of joints?
Fibrous, cartilaginous, synovial fluid
What are the supporting joint structures?
Ligaments, bursae
What are bursae?
Small fluid filled sacs that reduce friction between moving parts in your body joints
What are the six different types of synovial joint?
Pivot, ball and socket, hinge, saddle, plane , condyloid
Name the tributary of the axillary vein?
Brachial vein
Name the tributaries of the brachial veins?
Radial and ulnar veins
What are the superficial veins?
Cephalic, basilic and median cubital vein
What is the origin and attachment of the pec major and function ?
Clavicular, sternocostal and abdominal head
Attachment: Anterior edge of bicipital groove
Function: arm adduction, medial rotation and flexion
What is origins and insertion of pec minor and its function
Origin: margin of 3rd to 5th ribs adjacent to the costochondral junction
Insertion: coracoid process of scapula
Actions:
Stabilisation of scapula against thoracic wall
Accessary muscle of respiration
What is the origin and insertion of serratus anterior? Action?
Originates on 1st to 8-9th ribs adjacent and insert at anterior surface of medial border of scapula.
Actions: protraction of scapula against thoracic stabilisation of scapula against thoracic wall
What is blood supply of the deltoid? What innervates by?
Acromial and deltoid branches of thoracic- acromial artery
Anterior and posterior circumflex humoural artery
Innervates by axillary nerve
What is the role of the anterior structure of deltoid?
Flex the arm
What is the role of the posterior fibres of the deltoid?
Extension
What is the role of the middle fibres (acromial part) of the deltoid?
Abduction
What groove does the cephalic vein lie in?
Deltopectoral groove
What is the origin and insertion of the deltoid?
Inferior edge of the crest of the spine o the scapula, lateral margin of the Acromioclavicular, anterior border of lateral one third of clavicle
Insertion: deltoid tuberosity of humerus
What are the branches from the subclavian artery?
Axillary artery, circumflex numeral arteries, brachial artery, radial and ulnar artery
What is the origin, insertion and innervation of Latissimus dorsi?
Origin: spinous process of lower six thoracic vertebrae and related interspinous ligaments via the thoracolumbar fascia to the spinous processes of the lumbar vertebrae, related interspinous ligaments, and illiac crest, lower 3-4 ribs
Insertion: floor of intertubercular sulcu
Innervates by thoracicodorsal nerve
What the joints of the shoulder?
Acromioclavicular joint, sternoclavicular, glenohumeral joint
Where is the sternoclavicular joint found and what are the ligaments associated with it?
What movement does it allow?
Between the proximal end of the clavicle and clavicular notch of the manubrium together with a small part of the first costal cartilage.
Allows movement of the clavicle predominately in the anterior posterior and veticular plane
Surround by a joint capsule
Anterior and posterior sternoclavicular ligaments
Interclavicular ligaments
Costa clavicular ligaments
What is the Acromioclavicular joint? What movement does it allow and what ligaments are associated?
Small synovial joint between the acromion and clavicle
Allows movement in the anteroposterior and verticular planes together with some axial rotation. Surrounded by joint capsule
Acromioclavicular ligament
Coraclavicular ligament
Anterior trapezoid ligament and a posterior conoid ligament
What is the glenohumeral joint?
Is a synovial ball and socket articulation between the head of the humerus and glenoid cavity of the scapula- multiaxial with a wide range of movement
What provides joint stability?
Rotator cuf muscle, long head of the biceps brachii muscles, related bony processes and extracapsular ligaments.
