Radius & Ulna (Forearm): Bone Landmarks, Joints & Functions | Anatomy скачать в хорошем качестве

Radius & Ulna (Forearm): Bone Landmarks, Joints & Functions | Anatomy

Content: 00:00 Introduction & Content 00:39 Radius Anatomy 00:57 Proximal Radius 02:36 Shaft/body of Radius 03:57 Distal Radius 05:40 Ulna Anatomy 05:51 Proximal Ulna 07:38 Shaft/body of Ulna 08:22 Distal Ulna 09:15 Ulna and Radius Movement Animation 09:37 Joints between Radius and Ulna 11:10 Outro & Next topic ------------------ 🫀Help me make more free educational content:    / @taimtalksmed   📲Other Links: Website: https://taimtalksmed.com/ Instagram:   / taimtalksmed   Discord:   / discord   ------------------- Radius (Radius) Head of radius (Caput radii) – Articulates with capitulum of humerus and radial notch of ulna. Articular facet (Fovea articularis) – Shallow depression on top of the head. Articular circumference (Circumferentia articularis) – Lateral surface of head, contacts ulna. Neck of radius (Collum radii) – Narrow section between head and shaft. Radial tuberosity (Tuberositas radii) – Biceps brachii insertion site. Anterior border (Margo anterior) – Border facing front. Interosseous border (Margo interosseus) – Medial margin; attachment for interosseous membrane. Posterior border (Margo posterior) – Less distinct, on posterior aspect. Anterior surface (Facies anterior) – Between anterior and interosseous borders. Posterior surface (Facies posterior) – Between posterior and interosseous borders. Lateral surface (Facies lateralis) – Outer surface of shaft. Styloid process (Processus styloideus radii) – Lateral wrist projection; attachment for radial collateral ligament. Suprastyloid crest (Crista suprastyloidea) – Just above styloid; brachioradialis insertion. Dorsal radial tubercle (Tuberculum dorsale radii) – Lister’s tubercle; pulley for extensor pollicis longus. Ulnar notch of radius (Incisura ulnaris) – Medial indentation; articulates with ulna. Carpal articular surface (Facies articularis carpea) – Inferior surface; articulates with scaphoid and lunate. Ulna (Ulna) Olecranon (Olecranon) – Proximal posterior projection; fits into olecranon fossa. Trochlear notch (Incisura trochlearis) – Large anterior C-shaped articular surface. Coronoid process (Processus coronoideus) – Anterior projection; fits into coronoid fossa. Sublime tubercle (Tuberculum subliminale) – Medial side of coronoid; ligament/muscle attachment. Radial notch (Incisura radialis) – Lateral surface; articulates with radius. Ulnar tuberosity (Tuberositas ulnae) – Just below coronoid; brachialis insertion site. Anterior border (Margo anterior) – Front margin of shaft. Interosseous border (Margo interosseus) – Lateral edge; attachment for interosseous membrane. Supinator crest (Crista m. supinatoris) – Near top of interosseous border; supinator origin. Posterior border (Margo posterior) – Subcutaneous ridge down posterior side. Anterior surface (Facies anterior) Posterior surface (Facies posterior) Medial surface (Facies medialis) Head of ulna (Caput ulnae) – Rounded distal end. Styloid process (Processus styloideus ulnae) – Medial wrist projection. Articular circumference (Circumferentia articularis ulnae) – Surface around head; fits into radius. Articular facet (Facies articularis) – Lateral part of ulnar head; part of TFCC. Joints Proximal radioulnar joint (Articulatio radioulnaris proximalis) – Pivot joint between radial head and radial notch of ulna. Distal radioulnar joint (Articulatio radioulnaris distalis) – Between ulnar head and ulnar notch of radius. Radiocarpal joint (Articulatio radiocarpalis) – Between distal radius and scaphoid/lunate. Humeroradial joint (Articulatio humeroradialis) – Capitulum with radial head. Humeroulnar joint (Articulatio humeroulnaris) – Trochlea with trochlear notch. Other Structures Interosseous membrane – Strong fibrous sheet between shafts. Oblique cord – Small band from ulna to radius, near radial tuberosity. Palmar & dorsal radioulnar ligaments – Stabilize distal radioulnar joint. Sources: Memorix Anatomy Gray’s Anatomy for Students (41st ed.) Acland’s Video Atlas of Human Anatomy Atlas of Human Anatomy – Frank H. Netter Essential Clinical Anatomy – Moore Inderbir Singh’s Textbook of Human Osteology Kenhub (as secondary source) Programs used: Complete Anatomy, 3D visuals, PowerPoint, Camtasia, Canva. Skills used: My brain🤓