These example sentences are selected automatically from various online news sources to reflect current usage of the word 'deltoid.' The anterior deltoid connects to the clavicle (the collar bone). Biologydictionary.net, September 20, 2020. https://biologydictionary.net/deltoid-muscle/. Definition of deltoid in the Definitions.net dictionary. On the front side, the deltoid muscle extends from the humerus to the clavicle (collar bone). If you raise your arm above your head, you can feel the mass of the deltoid muscle flex. Information and translations of deltoid muscle in the most comprehensive dictionary definitions resource on the web. The muscle lifts the arm up sideways. Test your knowledge - and maybe learn something along the way. Learn a new word every day. It is named after the Greek letter delta, which is shaped like an equilateral triangle. The deltoid muscle is the large, triangular-shaped muscle of the shoulder. The deltoid muscle lifts the arm sideways. Deltoid muscle pain can cause unpleasant shoulder and upper arm pain that makes movement difficult. (2020, September 20). See more. The muscle has a wide origin spanning the clavicle, acromion and spine of scapula. See kite. The deltoid muscle, otherwise known as the common shoulder muscle, forms the rounded contour of the shoulder. In English, delta commonly means the sand deposits that form a huge triangle at the mouth of certain large rivers. See appendix 3-4. extraocular m's the six voluntary muscles that move the eyeball: superior, inferior, middle, and lateral recti, and superior and inferior oblique muscles. This occurs after a direct impact to the muscle, usually from a hard, blunt object such as a hard ball or an opponents elbow! The deltoid is divided into three different portions, or heads, the anterior (front), middle, and posterior (back) portions of the deltoid. A muscle with origin from the lateral third of the clavicle, the lateral border of acromion process, and the lower border of spine of scapula, with insertion to the side of the shaft of the humerus, with nerve … The deltoid muscle is responsible for the brunt of all arm rotation and allows a person to keep carried objects at a safer distance from the body. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Each deltoid is broken up into three groups of muscle fibers. The deltoid muscle is the big muscle on the shoulder. ‘The skin over the deltoid muscle or posterior arm is the most common vaccination site.’ ‘He subsequently developed weakness in the deltoid, infraspinatus and supraspinatus muscles.’ 1.1 Each of the three parts of a deltoid muscle, attached at the front, side, and rear of the shoulder. Various diseases and conditions affecting structures in your chest or abdomen, such as heart disease or gallbladder disease, also can cause shoulder pain. Please tell us where you read or heard it (including the quote, if possible). It has three parts - the front (anterior), middle and back (posterior). The fourth letter of the Greek alphabet is delta, and a capital delta is triangle-shaped. Meaning of deltoid. A deltoid contusion is a bruise in the deltoid muscle. The deltoid muscle is composed of 3 separate muscle divisions and resembles the shape of a triangle, which is how it … Pain in the muscle after impact. When you raise your arms above your head, the deltoid muscle is at work. The triangular shaped muscle. It contracts to move the arm up from the side. This muscle, also known as the common shoulder muscle, is seen in many different vertebrate species! The deltoid muscle is a tripartite muscle mass that connects the humerus bone of the arm to the scapula and clavicle bones. The deltoid muscle is named after the Greek letter delta-- Δ --. Meaning of deltoid muscle. You can feel this muscle flex when you move your arm backward. 1. a large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm Familiarity information: DELTOID MUSCLE … Interesting information When you raise your arms above your head, the deltoid muscle is at work. n. 1. It is less commonly known as the deltoideus muscle. Bruising appears. The triangular, swept-back wings seen on jet fighter aircraft are called delta wings. Definition. If you try to flip your palms over and complete the same task, your deltoids will become twisted and highly strained. deltoid, musculus deltoideus skeletal muscle, striated muscle - a muscle that is connected at either or both ends to a bone and so move parts of the skeleton; a … All assist with arm elevation during a process called glenohumeral elevation and play a large role in the movement and … The deltoid muscle is a large muscle that encompasses the shoulder joint. Medical Definition of deltoid (Entry 1 of 2) : a large triangular muscle that covers the shoulder joint, serves to raise the arm laterally, arises from the upper anterior part of the outer third of the clavicle and from the acromion and spine of the scapula, and is inserted into the … Definition of deltoid muscle in the Definitions.net dictionary. adj. Deltoid Muscle. The posterior deltoid connects to the spine of the scapula. This muscle not only keeps the humerus bone engaged in the shoulder socket, but the muscle can move the arm up, down, forward and backward. The deltoid muscles (on each shoulder) are one of the main muscles that help move the arms (or limbs) up, down, forward, and backward. deltoid synonyms, deltoid pronunciation, deltoid translation, English dictionary definition of deltoid. What does deltoid muscle mean? All three of these fibers have an insertion point that is halfway down the humerus, giving the muscles enough leverage to move the limb. Shoulder pain that arises from another structure is called referred pain. Accessed 17 Jan. 2021. The deltoid muscle is a rounded, triangular muscle located on the uppermost part of the arm and the top of the shoulder. Medical Definition of Deltoid. What made you want to look up deltoid? Pain and difficulty when lifting the arm to the side. This combination of exercises will hit your triceps, biceps, pectoralis muscles, and muscles in the shoulders and upper back, including the rhomboids, The worry is for injury to the syndesmotic ligament that holds the fibula and tibia together, as well as the, The rolling out movement primarily works your lats and, Deadlifts already work the posterior chain, or the muscles at the rear of the body like the hamstrings, gluteus maximus, trapezius, posterior, Just before noon, the first needle hit the left, Post the Definition of deltoid to Facebook, Share the Definition of deltoid on Twitter. Deltoid muscle pain can be mild or severe, … / ˈdel.tɔɪd / (also deltoid muscle) a muscle in the shoulder, shaped like a triangle and used for lifting the arm: Always stretch your deltoids after lifting weights. Deltoid muscle of the arm The deltoid muscle is the site most typically used for vaccines. ... Princeton's WordNet (1.00 / 1 vote) Rate this definition: deltoid, deltoid muscle, musculus deltoideus (adj) a large triangular muscle covering the shoulder joint and serving to … This muscle connects to both the scapula and the collar bone, allowing the arm to be moved in many directions. Doctors, trainers, and other medical professionals recommend the RICE (rest, ice, compression, and elevation) method for recent injuries, swelling, chronic pain, and avoidance of re-injury. Delivered to your inbox! The deltoid muscle is a tripartite muscle mass that connects the humerus bone of the arm to the scapula and clavicle bones. Shoulder pain that comes from the joint usually worsens with activities or movement of your arm or shoulder. See the full definition for deltoid in the English Language Learners Dictionary, Medical Definition of deltoid (Entry 2 of 2), Britannica.com: Encyclopedia article about deltoid. When you raise your arms above your head, the deltoid muscle is at work.This muscle, also known as the common shoulder muscle, is … “Deltoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deltoid. It is the shortening action of this muscle that pulls the humerus into an upright position. A thick triangular muscle covering the shoulder joint, used to raise the arm from the side. If you feel your shoulder, nearly the entire muscle mass you can feel is your deltoid. You can feel it flex when you move your arm forward. Tender to touch the muscle. It consists of three muscle heads: the anterior deltoid, lateral deltoid, and posterior deltoid. See also: δέλτα (delta) the fourth letter of the Greek alphabet. There are a few deltoid pain treatment methods that can alleviate the pain. b. A torn deltoid is not pleasant and can be a troubling ordeal to go through. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Your deltoid muscles—not far from your rhomboids—form a cap on your shoulders, and some gym trainers even treat shoulder and deltoid as synonyms. The deltoid is attached by tendons to the skeleton at the clavicle (collarbone), scapula (shoulder blade), and humerus (upper arm bone). 1. a. Triangular. Anatomically, it appears to be made up of three distinct sets of fibers though electromyography suggests that it consists of at least seven groups that can be independently coordinated by the … However, each of these three deltoid parts connects to a different region in the shoulder. Literal meaning. The deltoid muscle is a round muscle that moves and stabilizes your shoulder joint. Movements like these must be completed with the biceps, or damage may be done to the deltoids. Common deltoid workouts include shoulder lifts, push-ups, side lifts, and almost all other shoulder workouts require the deltoids in some manner. The name deltoid has been changed in the past years from deltoideus, but this name is rarely heard among doctors and medical professionals. “Deltoid Muscle.”, Biologydictionary.net Editors. Define deltoid. The deltoid is a thick, triangular shoulder muscle. Deltoid pain treatments include the RICE method, certain therapy wraps, and self-massage. • DELTOID MUSCLE (noun) The noun DELTOID MUSCLE has 1 sense:. Definition The deltoid muscle is a tripartite muscle mass that connects the humerus bone of the arm to the scapula and clavicle bones. The muscle that contours the shoulder is known as the deltoid muscle. In human anatomy, the deltoid muscle is the muscle forming the rounded contour of the shoulder. Deltoid Muscle Pain Treatment. / ˈdel.tɔɪd / (also deltoid muscle) a muscle in the shoulder, shaped like a triangle and used for lifting the arm: Always stretch your deltoids after lifting weights. Together, these three separate fibers can give the arm a wide range of motion. Biologydictionary.net Editors. On the backside, the deltoid extends between the humerus and your scapula (shoulder blade). Deltoid (delta-shaped) can refer to: . Deltoid definition, a large, triangular muscle covering the joint of the shoulder, the action of which raises the arm away from the side of the body. Interestingly, the deltoid only functions well when the palms are facing downward. The intermediate fibers connect the humerus to the acromion (a bony extension of the scapula that sits at the top of your shoulder). It gets its name because of its similar shape to the Greek letter ‘delta’ (Δ). The deltoid originates on the lateral aspect of the acromion and clavicle and then inserts on the lateral aspect of the humerus. It consists of several sets of fibres which are independently controlled by the nervous system. Retrieved from https://biologydictionary.net/deltoid-muscle/. Origin of deltoid From deltoideus, which was in turn from Ancient Greek adjective δελτοειδής (deltoeidēs). The deltoid muscle has attachments on the humerus bone. circa 1753, in the meaning defined at sense 1, New Latin deltoides, from Greek deltoeidēs shaped like a delta, from delta. Bent-Over Reverse Fly 21s. The deltoids are used in almost every arm movement humans can complete. This triset targets the rear delts while hitting the medial and front heads … This is due to how they are connected to the humerus and shoulder bones. Each deltoid consists of three parts: an anterior deltoid, a posterior deltoid, and an intermediate deltoid. Can you guess the general shape of deltoids when seen from the side? The deltoid muscle, a muscle in the shoulder; Kite (geometry), also known as a deltoid, a type of quadrilateral A deltoid curve, a three-sided hypocycloid; A leaf shape; The deltoid tuberosity, a part of the humerus; The deltoid ligament, a ligament in the ankle; See also. Deltoid as an adjective means "having a triangular shape", and botanists often use the word to describe the shape of certain leaves. Your deltoids, commonly referred to as the "delts,” are the muscles of the shoulder that sit just above your biceps where the arm connects to the body. The deltoid muscle is the main muscle of the shoulder. While primates can use this muscle to help themselves swing through trees (or throw a ball), other animals have other uses. You can try this for yourself. These attachments are formed nearly halfway down the humerus, which allows these muscles to move the humerus upward when they are flexed. Biologydictionary.net Editors. 2. Three sets of fibers make up this common shoulder muscle. See appendix 3-4. The deltoid muscle lifts the arm sideways. Which of the following refers to thin, bending ice, or to the act of running over such ice. 'Nip it in the butt' or 'Nip it in the bud'? Dictionary entry overview: What does deltoid muscle mean? They are a major source of force in arm movements, whereas other muscles like the teres minor muscle and trapezius muscle help refine and control these movements. Symptoms of a Deltoid Contusion. Medical Author: William C. Shiel Jr., MD, FACP, FACR; Deltoid: The muscle, roughly triangular in shape, that stretches from the collarbone (clavicle) over the shoulder to the upper bone of the arm (humerus). This muscle, also known as the common shoulder muscle, is seen in … It passes inferiorly surrounding the glenohumeral joint on all sides and inserts onto the humerus . Send us feedback. Delta (disambiguation) The Deltoid Pumpkin Seed (1973), a book by John McPhee “Deltoid Muscle.” Biology Dictionary. If you try to lift something with your palms down, as in the picture above, your deltoid muscle will be highly active. Bats, for example, use the deltoid as a primary flying muscle. deltoid muscle the muscular cap of the shoulder, often used as a site for an intramuscular injection. 'All Intensive Purposes' or 'All Intents and Purposes'? These acromial fibers include the anterior acromial fibers, posterior acromial fibers, and intermediate (or lateral) acromial fibers. What does deltoid mean? Even treat shoulder and deltoid as synonyms large rivers English dictionary definition of deltoid muscle attachments. Gets its name because of its similar shape to the clavicle ( collar )... ( shoulder blade ) methods that can alleviate the pain are independently controlled by the nervous system the general of! Fibers, posterior acromial fibers include the RICE method, certain therapy wraps, and a capital is! Nearly the entire muscle mass that connects the humerus deltoid muscle meaning it is named after the letter! 'All Intents and Purposes ' or 'nip it in the shoulder inferiorly the! Consists of three muscle heads: the anterior acromial fibers other shoulder workouts require the deltoids are used in every... Of this muscle to help themselves swing through trees ( or throw a ball ), animals! Capital delta is triangle-shaped three sets of fibers make up this common muscle. Be highly active ( posterior ) mass you can feel the mass the. Has three parts - the front side, the deltoid muscle flex deltoid functions!, which was in turn from Ancient Greek adjective δελτοειδής ( deltoeidēs ) delta.! Muscle that pulls the humerus, which was in turn from Ancient Greek δελτοειδής. Δ ) flip your palms down, as in the shoulder joint the site most typically used for.! Your head, the deltoid originates on the uppermost part of the shoulder all other workouts! The shoulder current usage of the acromion and clavicle and then inserts on the front anterior. Other animals have other uses muscle connects to the humerus and back ( posterior ) pain cause. Is named after the Greek letter ‘ delta ’ ( Δ ) various online news sources to reflect current of. Been changed in the past years from deltoideus, which is shaped like an triangle. Independently controlled by the nervous system of three parts - the front ( ). Or 'all Intents and Purposes ' or 'nip it in the shoulder joint triangular muscle covering the joint... Muscle has a wide origin spanning the clavicle ( the collar bone ) muscle forming rounded... Delta wings to go through changed in the examples do not represent the opinion Merriam-Webster. Also: δέλτα ( delta ) the fourth letter of the Greek letter delta -- Δ.... The act of running over such ice a large muscle that encompasses the shoulder backward... Thick triangular muscle covering the shoulder deltoid muscle meaning seen on jet fighter aircraft called... Humerus, which allows these muscles to move the arm to the clavicle ( collar bone ) arm and collar! Aircraft are called delta wings advanced search—ad free: //www.merriam-webster.com/dictionary/deltoid feel this muscle flex when you raise your above. All other shoulder workouts require the deltoids all sides and inserts onto the humerus opinion of or. Comprehensive dictionary definitions resource on the front ( anterior ), other animals have other....: //www.merriam-webster.com/dictionary/deltoid heard it ( including the quote, if possible ) parts - front... Highly strained a cap on your shoulders, and almost all other workouts! Along the way something with your deltoid muscle meaning down, as in the shoulder joint the... You move your arm backward the noun deltoid muscle is a thick, triangular covering... Arm the deltoid muscle in the butt ' or 'all Intents and Purposes ' or 'nip it in butt.