Start Now. Match. The humerus is the long bone of your upper arm. You will be required to label the ulnar notch, styloid process of ulna, trochlear notch, proximal radioulnar joint, olecranon process, coronoid process, distal radioulnar joint, etc. Not including: head of ulna; ulnar notch of radius. The radius and ulna are the bones of the forearm. Definition of Humerus. 1. a straight line extending from the center of a circle or sphere to the circumference or surface: The radius of a circle is half the diameter. The radius is one of the two bones that make up the forearm, the other being the ulna. / ˈreɪ.di.əs / plural radii radius noun [C] (DISTANCE) (the length of) a straight line joining the centre of a circle to its edge or the centre of a sphere to its surface: The radius of this wheel is 30 cm.. Learn. This videos gives you a preview to our full length tutorial on the bones of the forearm, the radius and ulna. (zoology)The lighter bone (or fused portion of bone) in the forelimb of an animal. Meaning "circular area of defined distance around some place" is attested from 1953. The upper end of the ulna presents a large C-shaped notch—the semilunar, or trochlear, notch—which articulates with the trochlea of the humerus (upper arm bone) to form the elbow joint. Plural is radii. A radial keratotomy is an eye operation in which incisions are made in the cornea that resemble the spokes in a wheel. 2. the length of such a line. The break usually happens due to falling on an outstretched or flexed hand. Choose from 500 different sets of radius flashcards on Quizlet. Last update: Dec 5th, 2017. radius translation in English-Latin dictionary. Radius and Ulna Bones Quiz: Posterior Markings. any radial or radiating part. Another word for radius. Meaning "shorter bone of the forearm" is from 1610s in English (the Latin word had been used thus by … Key Areas Covered 1. The radius is a long bone in the forearm. radius definition in English dictionary, radius meaning, synonyms, see also 'radius vector',Schwarzschild radius',radius of action',radius of curvature'. from anatomy nerds; Trusted by 1,000,000+ students & professionals. What is Ulna – Definition, Anatomy, Function 3. Write. Radius, in anatomy, the outer of the two bones of the forearm when viewed with the palm facing forward. The word " radiation " … The forearm is the region of the upper limb that extends from the elbow to the wrist. (entomology) One of the major veins of the insect wing, between the subcosta and the media 4. The radius is the lateral of the two bones, which makes the ulna the medial bone of the forearm. The head of the radius is discoid and fits with the radial neck within the circular annular ligament, that attaches the proximal radius to the ulna. At the elbow, the humerus helps to form the elbow joint. The radius around a particular point is the distance from it in any direction. The radius is one of two forearm bones and is located on the thumb side. Nick has searched for work in a ten-mile radius around his home. translation and definition "radius", Dictionary English-English online. STUDY. The radius bone (os radius) supports the lateral (thumb) side of the forearm and the ulna bone (os ulna) supports the medial (little finger) side. Relating to the radius (bone of the forearm), to any structures named from it, or to the radial or lateral aspect of the upper limb as compared with the ulnar or medial aspect. These bones are specially designed in order to enable the movements that are unique for the upper limb, such are supination and pronation. It is found on the thumb side of the forearm and rotates to allow the hand to pivot at the wrist. Definition. ... Radius: Definition. Several muscles of the arm and forearm have origins and insertions on the radius to provide motion to the upper limb. 3. any radial or radiating part. All land vertebrates have this bone. 3. In humans it is shorter than the other bone of the forearm, the ulna. The radial shaft is thicker than the ulna and becomes thicker distally. Enrich your vocabulary with the English Definition dictionary ... 4 (Anatomy) the outer and slightly shorter of the two bones of the human forearm, extending from the elbow to the wrist Symmetric premature closure of the distal radial physis has been created in juvenile dogs experimentally through irradiation, thus serving as a model for the clinical scenario.40 Through this study, it was determined that when the distal radial physis is symmetrically insulted, the proximal physis assumes the majority of longitudinal growth in the radius, as the amount of elongation of the distal radius slows dramatically. The proximal radius comprises the articular radial head and immediately distally is the radial neck, and tuberosity.. nose radius definition, The tool nose radius wear occurs in the curved part of the tool and is related to the minor flank wear the roughness parameters defined in Table 1. Detailed definition of the roughness parameters can be. (geometry) A line segment b… The radius is the more lateral and slightly shorter of the two forearm bones. Gravity. Also Generally, they are attached to around to 20 m uscles of the forearm, enabling its unique movements. radius (plural radii or radiuses) 1. the length of such a line. The radius is a long, prism-shaped bone, which is slightly curved longitudinally. Introduction to the Radius and Ulna Bones Anatomy. The part of the radius connected to the wrist joint is called the distal radius. en.wiktionary.org (zoology) The lighter bone (or fused portion of bone) in the forelimb of an animal. It articulates with the capitulum of the humerus, the radial notch and the head of the ulna. What is Radius – Definition, Anatomy, Function 2. Radius and Ulna Bones Quiz: Posterior Markings. It lies laterally and parallel to ulna, the second of the forearm bones.The radius pivots around the ulna to produce movement at the proximal and distal radio-ulnar joints.. The word "radial" comes from the Latin "radius" meaning a spoke in a wheel which this bone was thought to resemble. This is the head, and it has a depression at the top that forms a joint with the capitulum of the humerus bone. Anatomy Radius and Ulna. In brief, the radius and ulna are the two long bones which extend from the elbow to the wrist of the forearm. 3. a straight line extending from the center of a circle or sphere to the circumference or surface: The radius of a circle is half the diameter. The inner and larger bone in the forearm that is attached to the wrist and located on the side of the little finger is the _____. Spell. It forms the radio-carpel joint at the wrist and the radio-ulnar joint at the elbow. Bone Transplantation, Definition Bone grafting is a surgical procedure by which new bone or a replacement material is placed into spaces between or around broken bone (fra… Relating to any radius. / ˈreɪ.di.əs / plural radii radius noun [C] (DISTANCE) (the length of) a straight line joining the center of a circle to its edge or the center of a sphere to its surface: The radius of this wheel is 15 … bones of the human forearm shown in supination Test. Radius Bone Anatomy (also called Radial Bone) Now let’s look at the radius bone anatomy, which is a Latin word that means “staff” or “spoke.” Head – the proximal end (or top) of the radius has a rounded cap looking area. Created by. PLAY. Start Quiz The radius articulates in four places: Elbow joint – Partly formed by an articulation between the head of the radius, and the capitulum of the humerus. (The other, shorter bone of the forearm is the radius.) 2. countable noun The radius of a circle is the distance from its center to its outside edge. It has a triangular cross section, with a lateral convexity, and … en.wiktionary.org (anatomy) The long bone in the forearm, on the side of the thumb. la Sacerdos enim ipse per suum caelibatum “ homo pro aliis ” redditur, non eodem tamen modo atque ille qui per iunctionem conubialem cum muliere item efficitur, tamquam maritus ac pater, “ homo pro aliis ”, praesertim intra propriae domus ac familiae fines: nempe pro sua uxore ac, simul cum ea, pro liberis quibus dat vitam. The shaft of the radius has a broad base that articulates with the lower end of the ulna and with the upper bones of the wrist. Start Now. Gross anatomy Osteology. 2. Find more ways to say radius, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. radius Definitions. It is the smaller of the two bones. nickgornick. When the radius breaks near the wrist, it is called a distal radius fracture. Radius and Ulna bone quiz for anatomy and physiology!This unlabeled quiz of the radius and ulna bone will test your knowledge on how to label the structures of these bones. Learn anatomy faster and remember everything you learn. It's attached to several other bones. Flashcards. 2. The wheel like rotation of the head of the radius enables supination (palm facing upwards), and pronation (palm facing downwards). (anatomy) The long bone in the forearm, on the side of the thumb. Smaller bone … Learn radius with free interactive flashcards. However, this compen… It is in the lateral forearm when in the anatomical position. In supination the radius breaks near the wrist, it is in the forearm when the... 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