For the vertebral column, flexion (anterior flexion) is an anterior (forward) bending of the neck or body, while extension involves a posterior-directed motion, such as straightening from a flexed position or bending backward. Rather than decreasing the angle between parts of the body, extension increases the angle. Extension usually results in straightening of the bones or body surfaces involved. Next month the house is undergoing an extension. Dorr (1805-1854), a young lawyer of Providence, began a systematic campaign for an extension of the suffrage, a reapportionment of representation and the establishment of an independent judiciary. That property of a body by which it occupies a portion of space (or time, e.g. 1. act of stretching or straightening out a flexed limb. Term. Extension noun. Lesson on Thumb Abduction vs. Adduction, Flexion vs. Extension and Opposition (Clinical Skills Lesson). Being one of the longest bones in the body, it is more prone to fractures upon impact. Terminology involving movements of the thumb can be d. an educational opportunity provided by colleges and universities to people who are not enrolled as regular students. One pair faces upward (superior articular facet) and one downward (inferior articular facet). Extension noun. The spine is made up of four areas: the cervical (neck), thoracic (upper back, ribs), lumbar (lower back) and sacral (sacrum and tailbone). (b) It is supported by the ulnar and radial collateral ligaments. bending backwards. "spatiotemporal extension") Definition. Reference axes: The movement is in the sagittal plane. Knees are extended when standing up. The wrist extensors are a group of nine individual muscles on the back of the forearm that act on the wrist and fingers. of extendere, to stretch out, extend] Definitions of Extension_(anatomy), synonyms, antonyms, derivatives of Extension_(anatomy), analogical dictionary of Extension_(anatomy) (English) Facet joints are hinge-like and link vertebrae together. extension definition: 1. the fact of reaching, stretching, or continuing; the act of adding to something in order to make. Axial Extension, Bandhas, and Mahamudra. Synonyms for EXTENSION: drawing out, elongation, lengthening, prolongation, prolonging, stretching, addition, annex; Antonyms for EXTENSION: abbreviation, abridgment . The sternocleidomastoids (SCMs) are superficially located neck muscles that play an important role in tilting your head and turning your neck, as well as other movements. The state of being extended. The SCMs on each side of your body course from the breastbone and collar bone in the upper part of the chest to the back of the head. ; Uses the contributes.commands Contribution Point to make the command Hello World . Extension: Movement that increases the angle between two bones or two parts of the body Plane of movement: Sagittal plane Where it happens: Neck, arm at the shoulder, forearm at the elbow, hand at the wrist, digits, spine, During flexion, the angle between two structures decreases, or gets smaller, as the two structures bend or move closer together. The act of extending; a stretching out; enlargement in length or breadth; an increase. act of expanding in scope; making more widely available. b. Gliding joints allow the bones to glide past one another in any direction along the plane of the joint up and down, left and right, and diagonally. This muscle plays a big role (that's what prime mover means) in extending the elbow joint from a bent to a straight position. Extention noun. Extension refers to the process of straightening, which increases the angle between two body parts. extension - WordReference English dictionary, questions, discussion and forums. The triceps brachii is a major muscle of the upper arm in the human body. Triceps brachii. The spine, skull, rib cage and sternum (breastbone . The cartilage becomes hard and bony anytime between an individual's 15 and 29 years of age. On this page: It is a prime mover of elbow extension. At this stage, the Xiphoid Process is a lump located below the sternal notch. There is one joint on each side (right and left). Abduction and Adduction Extension Anatomy. Extension It is the straightening movement increasing the angle between body parts. In the last topic, you were able to get a basic extension running. Humerus is the only bone of the upper arm, extending from the shoulder to the elbow, anchoring many powerful muscles. 4. The triceps run along the humerus (the main bone of the upper arm) between the shoulder and the elbow . Synonyms : extension service, university extension. Extension definition Straightening a part to where the angle between them increases and the parts move farther apart Extension example straightening leg at knee Hyperextension definition excess extension, moving a part beyond anatomical position Hyperextension example bending neck backwards Dorsiflexion definition 1. Extension noun. In other words, the cervical, thoracic, and lumbar curves are all . It becomes ossified and gets fused to the sternum as the individual grows up. Anatomical structures: The humerus of the arm moves relative to the scapula of the shoulder blade. How does it work under the hood? See additional information. The complex anatomy of the lumbar region is a remarkable combination of these strong vertebrae (with their multiple bony elements) linked by joint capsules, and flexible ligaments/tendons, large muscles, and highly sensitive nerves. Extension noun. In this anatomy lesion, I'm going to demonstrate flexion and extension, which are body movement terms that either decrease or increase the angle between two structures or joints, bringing them closer together or moving them further apart. 3. Learn more. Most extensions lead to the movements in the posterior direction. Lateral Flexion. It helps to open up the side-body, strengthens the obliques, and is helpful in increasing flexibility of the spine. The Hello World extension does 3 things:. Extension noun. Extension usually results in straightening of the bones or body surfaces involved. English Dictionary | extension . The movement is usually directed backward, with the notable exception of the knee joint. Summary of background data: Recent clinical research supports the relevance of cervical . Extraprostatic (extracapsular) extension of prostate cancer refers to local tumor growth beyond the fibromuscular pseudocapsule of the prostate gland into the periprostatic soft tissues, in particular, the periprostatic fat and is an established adverse prognostic factor and of importance for prostate cancer staging and therapy. When talking about flexion and extension, we are usually referring to these movements as they occur about the coronal axis, and along the sagittal plane. They are used by clinicians and surgeons, especially orthopedists, radiologists, forensic scientists, detectives, osteologists, and anatomists. The retina is actually an extension of the brain, formed embryonically from neural tissue and connected to the brain proper by the optic nerve. Extension is the opposite of flexion. The resulting condition of being bent. When not erect, the penis is 50 cm long and 2.5 to 6 cm in diameter with the distal end 15 to 20 cm free in the prepuce. 4. See Answer Health Solutions From Our Sponsors Penis Curved When Erect Could I have CAD? [L. extensus, past part. Extension is the opposite of flexion, describing a straightening movement that increases the angle between body parts. The windlass mechanism refers to the function of the anatomy on the base of the foot, specifically the plantar aponeurosis, sesamoid bones, plantar pads and the attachment of these structures under the MTPJ. extensor muscle, any of the muscles that increase the angle between members of a limb, as by straightening the elbow or knee or bending the wrist or spine backward. It is a movement the opposite of abduction.Throwing the shoulder back and pinching the shoulder blades together illsutrates adduction of the shoulder girdles. These movements are also referred to as radial deviation and ulnar deviation . Remember, the radius is on the thumb side, which where you check . For the vertebral column, flexion (anterior flexion) is an anterior (forward) bending of the neck or body, while extension involves a posterior-directed motion, such as straightening from a flexed position or bending backward. 1A - Felxion 1B - Extension. Registers the onCommand Activation Event: onCommand:helloworld.helloWorld, so the extension becomes activated when user runs the Hello World command. Scapular Adduction - Also called scapular extension or retraction. Registers the onCommand Activation Event: onCommand:helloworld.helloWorld, so the extension becomes activated when user runs the Hello World command. In anatomy, extension is a movement of a joint that increases the angle between two bones or body surfaces at a joint. Extension noun. Elbow Joint. Extension - straightening a joint. The state of being extended. To straighten a joint. In anatomy, there are many such compound terms. Its primary function is to provide support for the skull, while still allowing for movement. As Figures 1 and 2 show, both male and female chickens have these basic parts. In the last topic, you were able to get a basic extension running. Extension - straightening a joint. The anatomical origin is a concept used when describing muscles, tendons, ligaments, nerves, and blood and lymph vessels.While it often has a slightly different meaning depending on which kind of origin is referred to, it is generally used to explain the relative location of the anatomical structure in question. All Free. Lateral flexion also opens up the ribcage, helping to expand the lungs and aid in deeper breathing. extension - act of stretching or straightening out a flexed limb. Lying medially to the brachioradialis muscle is the long and tapered extensor muscle named carpi radialis longus. Flexion and extension are movements that take place within the sagittal plane and involve anterior or posterior movements of the body or limbs. Examples of flexion Examples of flexion include: (a)-(b) Flexion and extension motions are in the sagittal (anterior-posterior) plane of motion. When erect, the penis doubles in length and thickness and the . Pronation and supination are movements that occur at the proximal radioulnar joint.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.The wheel like rotation of the head of the radius enables supination (palm facing upwards), and pronation (palm facing downwards). For example, extension is produced by extending the flexed (bent) elbow. (c) The annular ligament supports the head of the radius at the proximal radioulnar joint, the pivot joint that allows for rotation of the radius. In the hand these include the extensor carpi radialis brevis . They are located at the back of the spine (posterior). Anatomy starts at the microscopic level with cells, which are the basic units of living things. Flexion and extension are considered to be opposite. What does all that textbook jargon mean? The act of bringing the distal portion of a joint in continuity with the long axis of the proximal portion. This cartilaginous extension can be seen and felt in infants. misspelling of extension. Anatomy extension ( countable and uncountable, plural extensions ) The act of extending; a stretching out; enlargement in length, breadth, or time; an increase. In many limbs, extension is the same as straightening the limb. Konia is connected by railway with Constantinople and is the starting-point of the extension towards Bagdad. Aim: This study examined the functional differences existing in the trunk flexion-extension movement in standing and seated positions during isokinetic exercises, as well as the influence of position on overload of the lumbar column. That property of a body by which it occupies a portion of space (or time, e.g. Extraprostatic (extracapsular) extension of prostate cancer refers to local tumor growth beyond the fibromuscular pseudocapsule of the prostate gland into the periprostatic soft tissues, in particular, the periprostatic fat and is an established adverse prognostic factor and of importance for prostate cancer staging and therapy. 1 Flexion makes a joint angle smaller and extension increases it. ( eks-ten'shn) [TA] 1. tion Anatomy a. microscopic anatomy. EXTENSION The posterior region of the forearm hosts the various muscles which are responsible for extension of the hand. A gliding joint, also known as a plane joint or planar joint, is a common type of synovial joint formed between bones that meet at flat or nearly flat articular surfaces. It is the most flexible part of the spine . extension noun. Methods: Nine females underwent an isokinetic test at 60 and 180 degrees /s in standing and seated positions. The term 'windlass' actually is a verb used in sailing meaning to haul or lift something using windlass. Extention noun. misspelling of extension. Figure 9.12 Movements of the Body, Part 1 Synovial joints give the body many ways in which to move. The anatomy of the Thoracic spine is related directly to its function. Leaning the neck or body backward is a form of extension as well (moving in a posterior direction). The cervical spine is the bony part of the neck. For example, pointing your feet and standing on the tips of your toes, or are both examples of plantar flexion. Bone markings are invaluable to the identification of individual bones and bony pieces and aid in the understanding of functional and evolutionary anatomy. Although the untrained eye may overlook bone markings as contours of the bone, they are not as .