28.09.2018 1 Skeleton of the upper extremity Marek Joukal, M.D., Ph.D. mjoukal@med.muni.cz Department of Anatomy, Faculty of Medicine Masaryk University I. Bones of the shoulder girdle (cingulum membri superioris) Clavicule Scapula II. Bones of the free upper extremity (ossa membri superioris liberi) Humerus Radius Ulna Carpal bones (ossa carpi) Metacarpal bones (ossa metacarpi) Phalangeal bones (ossa digitorum manus) SKELETON OF THE UPPER EXTREMITY (ossa membri superioris) Clavicle Connects upper extremity with trunk Connection with scapula Connection with sternum extremitas sternalis (facies articularis sternalis) extramitas acromialis (facies articularis acromialis) tuberositas costalis (impressio ligamenti costoclavicularis) tuberositas coracoidea (tuberculum conoideum et linea trapezoidea) Clavicle Scapula margo superior margo medialis margo lateralis angulus: superior, inferior, lateralis facies: costalis, dorsalis Facies costalis scapulae Lineae musculares (transverae) Fossa subscapularis Incisura scapulae (ligamentum transversum scapulae) Processus coracoideus Collum scapulae Cavitas glenoidalis 28.09.2018 2 cavitas glenoidalis tuberculum supraglenoidale (musculus biceps brachii) tuberculum infraglenoidale (musculus triceps brachii) collum scapulae Facies dorsalis scapulae spina scapulae tuberositas triangularis scapulae acromion facies articularis acromii fossa supraspinata fossa infraspinata Humerus Skeleton of the arm Connected with scapula Connection with forearm Proximal end Body Distal end Humerus Proximal end: caput humeri collum anatomicum tuberculum majus tuberculum minus crista tuberculi majoris et minoris sulcus intertubercularis collum chirurgicum corpus tuberositas deltoidea sulcus nervi radialis (nervus radialis) Humerus Humerus distal end: epicondylus medialis sulcus nervi ulnaris epicondylus lateralis trochlea humeri fossa coronoidea capitulum humeri fossa radialis fossa olecrani 28.09.2018 3 Radius Lateral side of the forearm Connected with the humerus Connected with the ulna Connected with the carpal bones Proximal end Body Distal end Proximal end: caput radii fovea capitis radii circumferentia articularis capitis radii collum radii Body tuberositas radii margo interosseus Radius Distal end: processus styloideus radii facies articularis carpea radii incisura ulnaris radii Grooves for the extensors Radius Ulna Medal side of the forearm Connected with the humerus Connected with the radius Proximal end Body Distal end Proximal end: olecranon ulnae incisura trochlearis processus coronoideus incisura radialis ulnae Body: tuberositas ulnae margo interosseus crista musculi supinatoris Ulna Distal end: caput ulnae circumferentia articularis capitis ulnae processus styloideus ulnae Ulna 28.09.2018 4 Ossa carpi (carpal bones) Ossa metacarpi (metacarpal bones) Ossa digitorum manus, phalanges Skeleton of the hand Ossa carpi (8) Proximal row: os scaphoideum (tuberculum ossis scaphoidei) os lunatum os triquetrum os pisiforme Distal row os trapezium (tuberculum ossis trapezii) os trapezoideum os capitatum os hamatum (hamulus ossis hamati) palma manus dorsum manus sulcus carpi eminentia carpi radialis (tuberculum ossis scaphoidei et trapezii) eminentia carpi ulnaris (hamulus ossis hamati et os pisiforme) sulcus carpi (retinaculum flexorum) canalis carpi Ossa metacarpi (I.-V.) I. II. III. IV. V. Basis ossis metacarpalis (III. metacarp – processus styloideus) Corpus ossis metacarpalis Caput ossis metacarpalis Ossa sesamoidea I. metakarp – os trapezium II. metakarp – os trapezium, trapezoideum, os capitatum III. metakarp – os capitatum IV. a V. metakarp – os hamatum. Connections of the metacarpal bones 28.09.2018 5 Ossa digitorum manus, phalanges phalanx proximalis, media et distalis (II.–V. prst) phalanx proximalis et distalis Basis phalangis (prox., media, dist.) Corpus phalangis (prox., media, dist.) Trochlea phalangis (prox., media, dist.) Tuberositas phalangis distalis X-Ray anatomy X-Ray beams - 1895 Different absorption Types: Native vs. contrast – brightness, shadow Iodine contrast medium Contrast X-Ray pictures Barium meal Negative Positive (gas) Projection – A-P, lateral Ultrasound, CT, MRI 28.09.2018 6 4,5 yrs 7 yrs 13 yrs References Putz, R. (2008): Atlas of Human Anatomy Sobotta. Elsevier Books. Keith L. Moore, Arthur F. Dalley (2005): Clinically Oriented Anatomy. Williams and Wilkins. Platzer, W., Kahle, W., Leonhardt H. (1992): Locomotor system. Georg Thieme Verlag, Stuttgart, New York, 4th edition. Čihák, R. (1987): Anatomie 1. Avicenum, Zdravotnické nakladatelství.