longitudinal muscles definition
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- Earthworm-Muscular System. The earthworm has two muscles which it uses for locomotion, both of which run the whole length of the worm's body. These two muscles are circular muscles and longitudinal muscles (Musurca).The longitudinal muscles are the inner layer of the muscular series and cradle the coelom, the innards of the earthworm (Noble).When the circular muscles are contracted, the diameter of the body is reduced, making the worm thin.hen the longitudinal muscles are contracted, the length of the body is reduced, making the worm short. So, if an earthworm is short and thin, which is a common reaction, both types of their muscles are contracted.
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Overview of the Muscular System 1 Parallel muscles are the most abundant and typical, with fascicles arranged parallel to one another.  Convergent muscles are similar to parallel muscles in attachment, although fascicles do not run parallel to one another, producing a broader muscle.
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ETHICAL ISSUES IN CANCER PATIENT CARE SECOND EDITION The word come from the latin longitudo meaning length. Hence, longitudinal means along the length, running lengthwise, or (by extension) over the course of time. Please contribute to this project, if you have more information about this term feel free to edit this page.he word come from the latin longitudo meaning length. Hence, longitudinal means along the length, running lengthwise, or (by extension) over the course of time. Please contribute to this project, if you have more information about this term feel free to edit this page.
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Muscular System Anatomy and Physiology Parallel – fascicles run parallel to the long axis of the. muscle (e.g., sartorius) Fusiform – spindle-shaped muscles (e.g., biceps brachii) Pennate – short fascicles that attach obliquely to a central. tendon running the length of the muscle (e.g., rectus. femoris) Unipennate: insertion on one side.
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- straight muscle. Definitions: 1. member(s) of a group of muscles that proceed either in a more direct or more nearly vertical or horizontal direction than other muscles of the group, rectus muscles of extraocular or suboccipital muscles.
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Introduction Introduction. The abdominal muscles form the anterior and lateral abdominal wall and consist of the external abdominal obliques, the internal abdominal obliques, the rectus abdominis and the transversus abdominis.bdominal Muscle Anatomy. Search. The external abdominal oblique muscle is the largest and most superficial of the four muscles and lies on the sides and front of the abdomen. It is broad and thin with it's muscular portion occupying the side and it's aponeurosis the anterior wall of the abdomen.
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Definitions &Translations Peristalsis is a radially symmetrical contraction and relaxation of muscles which propagates in a wave down a muscular tube, in an anterograde fashion. In humans, peristalsis is found in the contraction of smooth muscles to propel contents through the digestive tract.It is wave contraction of longitudinal and circular muscles preceded by wave relaxation of these muscles. Earthworms use a similar mechanism to drive their locomotion.n humans, peristalsis is found in the contraction of smooth muscles to propel contents through the digestive tract. It is wave contraction of longitudinal and circular muscles preceded by wave relaxation of these muscles.
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Bougainvillea 101: Most-asked questions Or prune plants in early spring. Return potted bougainvillea to a full-sun location in spring and resume monthly fertilizing. Prune long trailing stems back 20-30 inches to encourage more color — the flowers and bracts form on new wood. Plants will flower for weeks, then rest before blooming again.
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- How Skeletal Muscles Are Named. Register for FREE to remove ads and unlock more features! Register for FREE to remove ads and unlock more features! The anatomical arrangement of skeletal muscle fascicles can be described as parallel, convergent, pennate, or sphincter. Differentiate among parallel, pennate, convergent, and sphincter muscle types. Parallel muscles are the most abundant and typical, with fascicles arranged parallel to one another.
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Skeletal muscle Muscle architecture refers to the arrangement of muscle fibers relative to the axis of force generation of the muscle. This axis is a hypothetical line from the muscle's origin to insertion. For some longitudinal muscles, such as the biceps brachii, this is a relatively simple concept.
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Oral: Four layers of the G.I. tract Muscularis propria (externa): smooth muscle layer. There are usually two layers; the inner layer is circular, and the outer layer is longitudinal. These layers of smooth muscle are used for peristalsis (rhythmic waves of contraction), to move food down through the gut.
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- A function f from Rn to Rm is a linear transformation if and only if it satisfies the following two properties: 1  For every two vectors A and B in Rn. f(A+B)=f(A)+f(B); 2  For every vector A in Rn and every number k. f(kA)=kf(A).
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- longitudinal fracture. Definitions: 1. a fracture involving the bone in the line of its axis. Synonyms: fissured fracture, linear fracture. The definition information for longitudinal fracture is provided by Stedman's.
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Longitudinal Wave Longitudinal Wave. A wave is a disturbance of a medium which transports energy through the medium without permanently transporting matter. In a wave, particles of the medium are temporarily displaced and then return to their original position.n this type of wave-a longitudinal wave-the particles of the medium vibrate in a direction parallel to the direction of energy transport. For more information on physical descriptions of waves, visit The Physics Classroom Tutorial. Detailed information is available there on the following topics:
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Rectus abdominis muscle The rectus abdominis muscle, also known as the  abdominals or abs , is a paired muscle running vertically on each side of the anterior wall of the human abdomen, as well as that of some other mammals.There are two parallel muscles, separated by a midline band of connective tissue called the linea alba.he rectus abdominis muscle, also known as the  abdominals or abs , is a paired muscle running vertically on each side of the anterior wall of the human abdomen, as well as that of some other mammals.
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- The term “longitudinal” or “transverse” refers to whether the grain of the steel in the test specimen runs the length of the rectangle (“longitudinal”) or the width of the rectangle (“transverse”).The “notch” goes in the middle of the length of the rectangle on one side.he term “longitudinal” or “transverse” refers to whether the grain of the steel in the test specimen runs the length of the rectangle (“longitudinal”) or the width of the rectangle (“transverse”).
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A&P Muscles The four types of muscles identified by different patterns of organization are: Parallel, convergent, pennate, circular. In a convergent muscle the muscle fibers are: based over a broad area, but all the fibers come together at a common attachment site.
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- Longitudinal Waves A longitudinal wave is a wave in which the vibration of the medium is parallel to the direction the wave travels. EX: Slinky Surface Waves A surface wave is a wave that travels along a surface separating two media.
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- The sartorius muscle (/sɑːrˈtɔəri.əs/) is the longest muscle in the human body. It is a long, thin, superficial muscle that runs down the length of the thigh in the anterior compartment.[2]
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- I nnervated: autonomic nervous system. Longitudinal and circular muscle layer orient at right angles to each other. Longitudinal. 1  contracts longitudinal muscles it shortens and dilates. 2  contract circular muscles the lumen constricts and the organ lengthens.
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- for peristalsis without the longitudinal muscle layer, a tremendous benefit that may explain the existence of longitudinal muscle fiber in the gut. We also review what is understood of the role of longitudinal muscle in esophageal emptying, reﬂ ux and pathology. © 2007 The WJG Press. All rights reserved.
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Longitudinal wave Longitudinal waves, also known as l-waves, are waves in which the displacement of the medium is in the same direction as, or the opposite direction to, the direction of travel of the wave.n longitudinal waves, the displacement of the medium is parallel to the propagation of the wave. A wave along the length of a stretched Slinky toy, where the distance between coils increases and decreases, is a good visualization. Sound waves in air are longitudinal, pressure waves.
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- Three are flat, the external oblique, the internal oblique and the transversus abdominis, and one is a straplike muscle, the rectus abdominis. The fibers in each of these muscles run in a cross direction from one another in a way that maximizes the strength of the three muscles together (think of plywood).
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- longitudinal adjective. › used to refer to ​lines or ​distances ​east or ​west of an ​imaginary ​line between the ​North ​Pole and the ​South ​Pole: Longitudinal ​lines ​run from ​north to ​south. › medical in the ​long ​direction of the ​body or of any ​body ​part: a longitudinal ​rash. › medical, social sciences Longitudinal ​research is done on ​people or ​groups over a ​long ​period of ​time: longitudinal ​analysis/​studies. (Definition of longitudinal from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press).
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Skeletal muscle The skeletal muscle is the type of muscle that are known for their multinucleated (syncytial) feature, long cylindrical muscle fibers, transverse markings on the muscle fibers (as seen under the microscope), and being anchored to the bones (by tendons).
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- concentric An isotonic contraction where the muscle shortens. Isometric A muscular contraction in which the length of the muscle does not change. isotonic A muscular contraction in which the length of the muscle changes. eccentric An isotonic contraction where the muscle lengthens.