The synovial joint is stabilized by bursae The joint cavity space tends to stay the same through life even with trauma The bursae produce synovial fluid Synovial fluid lubricates the joint and prevents excessive wear on the joints QUESTION 50 A motor unit is composed of all the muscle fibers that one motor neuron innervates. A. d. Both the actin and myosin myofilaments shorten, which shrinks the sarcomere and pulls the Z disk closer together. calcium carbonate. b. circumduction c. gouty arthritis b. Connective tissue that covers each muscle fiber A synovial joint is also known as diarthrosis. b. synarthroses, amphiarthroses c. Linkages form between the actin and myosin. C the shoulder joint has a shallower socket Examples of this include the articular discs found at the sternoclavicular joint or between the distal ends of the radius and ulna bones. C both A and B Synovitis: Joint Lining Inflammation Causes & Treatments | HSS D elastic connective tissue, In the embryo, the bones of the arms and legs are first made of: It contains hyaluronic acid. Which are the least mobile of all synovial joints? A there are two pairs of floating ribs Bursae contain a lubricating fluid that serves to reduce friction between structures. Gout is a form of arthritis that results from the deposition of uric acid crystals within a body joint. B calcium and phosphorus Write an equation for the reaction of each antacid with hydrochloric acid. D PTH, Which of these bones does NOT directly help protect the brain? b. bursae The elbow joint. a. the muscle twitch only occurs in small muscles, while tetanic contraction is large muscle groups b. A definitive diagnosis from joint fluid findings can be made only in two situations: crystal synovitis and septic arthritis. Saddle c. Condyloid d. Gliding d. Gliding c. The epimysium extends past the muscle as a flat sheet of connective tissue that fuses with the covering of the other muscles. Functionally, condyloid joints are biaxial joints that allow for two planes of movement. B sutures C) In cartilaginous joints, a joint cavity is present. a. prevent hyperextension of the knee False A 2 A person who has been diagnosed with a sprained ankle has an injury to the ligaments that attach to that joint. Note: The thermodynamic cycle involves four piston strokes. c. tendon sheaths Outside of their articulating surfaces, the bones are connected together by ligaments, which are strong bands of fibrous connective tissue. Which of the following is a true statement regarding gliding movements? b. an inflammatory process destroys synovial fluid If a joint can exhibit flexion, extension, and abduction, then it is triaxial. A spongy bone in the diaphysis of a long bone Which statement is NOT true of long bones? ABBCCDDAABCDAQWEint. Bursae reduce friction by separating the adjacent structures, preventing them from rubbing directly against each other. a. synovial membrane degenrate with age Here, the upward projecting dens of the axis articulates with the inner aspect of the atlas, where it is held in place by a ligament. D & & & \\ a. D synovial fluid, In a synovial joint, the synovial fluid prevents friction b. Treppe B pivot Synovial joints are subdivided based on the shapes of the articulating surfaces of the bones that form each joint. (b) the presence of vestigial eyes in cave salamanders Answer and Explanation: 1 C cartilage Instead, the articular cartilage acts like a Teflon coating over the bone surface, allowing the articulating bones to move smoothly against each other without damaging the underlying bone tissue. The calcium binds with troponin on the actin filaments, which permits the myosin heads to latch on and muscle contraction occurs, In the disease myasthenia gravis, the body produces antibodies against receptors for acetylcholine (ACh). I, II and III Locomotion and Movement Zoology Practice questions, MCQs, Past Year Questions . Maggie is a 28-year-old Caucasian woman who has newly diagnosed rheumatoid arthritis (RA). True or False: Synovial fluid is a viscous material that is derived by filtration from blood. d. actin, The term _________ refers to the constant state of contraction of a certain number of fibers within a muscle. They provide a wide range of motion and flexibility. O A. Which of the following is not a true synovial joint? c. The length of the muscle fiber before the contraction begins Synovial Joints: Synovial joints are joints in the body that are freely movable and classified as diarthrotic. 96) _C_____ A) articular cartilage B) joint (articular) cavity C) tendon sheath D) articular (joint) capsule. An example of a gliding movement is nodding one's head. II. Paralysis, because all ACh must be bound to a receptor for contraction to occur Thus, the thumb can move within the same plane as the palm of the hand, or it can jut out anteriorly, perpendicular to the palm. B the manubrium of the sternum articulates with the false ribs a. relaxtion Solved QUESTION 49 Which of the following statements is true - Chegg c. tendon sheaths Long protein bundles htat fill the sarcoplasmand store glycogen, What is the chief function of T tubules? Which of the following is not a true synovial joint? a Which of the following are cartilaginous joints? a. Immovable joints are called amphiarthroses. True or False: Symphyses are synarthrotic joints designed for strength with flexibility. A synarthrosis, which is an immobile joint, serves to strongly connect bones thus protecting internal organs such as the heart or brain. 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At other synovial joints, the disc can provide shock absorption and cushioning between the bones, which is the function of each meniscus within the knee joint. Based on the structure of the joint, the sagittal suture (between parietal bones of cranium) is classified as a: Definition. Which of the following is NOT true of synovial joints? C sphenoid c. Ligaments surround the glenohumeral joint on all sides and strengthen the joint. d. Another name for muscle cells, a. C supports the trunk and head This type of joint is found between the articular processes of adjacent vertebrae, at the acromioclavicular joint, or at the intercarpal joints of the hand and intertarsal joints of the foot. It contains a lubricating fluid that allows for smooth motions of the tendon during muscle contraction and joint movements. However arthroplasty can provide relief from chronic pain and can enhance mobility within a few months following the surgery. b. Gomphoses a. hands A red bone marrow is found in flat bones This causes inflammation and pain in the joints and surrounding tissues. B articular cartilage d. protraction. D parts of the DNA that code for enzymes for bone matrix synthesis, Which nutrient is NOT paired with its correct function with respect to bone growth? These structures can serve several functions, depending on the specific joint. a. the radius and ulna along its length b. Epimysium A diet with excessive fructose has been implicated in raising the chances of a susceptible individual developing gout. b. the additional joint present doubles the range of motion b. synovial joint - freely moving pubic symphysis - cartilaginous joint skull sutures - fibrous joint all are correct all are correct in a synovial joint, the joint capsule is lined by the? Saddle joints are functionally classified as biaxial joints. The Tissue Level of Organization, Chapter 6. c. tend to run parallel to one another b. flexion She complains of painful, stiff hands and feet, feeling tired all the time, and reports an intermittent low-grade fever. D all RBCs are produced by red bone marrow, The fontanels in an infant's skull are made of: B temporal and mandible d. Complete tatanus, Most skeletal muscles remain in a state of a. Myofilaments TRUE or FALSE. c. synarthosis The attack may only last a few days, but may return to the same or another joint. A hinge/elastic connective tissue The anular ligament surrounds the head of the radius. B thyroxine There are more than 100 different forms of arthritis. Which of the following statements best describes angular movements? c. symphysis True or False: Flexion of the ankle so that the superior aspect of the foot approaches the shin is called dorsiflexion. C parietal and mandible There is no cure for osteoarthritis, but several treatments can help alleviate the pain. The actin heads propel the myosin filaments toward the center of the sarcomere; this pulls the Z disks closer together, which shortens the sarcomere and the entire muscle All synovial joints are freely movable. Which of the following provides evidence for evolution? D) Immovable joints are called amphiarthroses. The mysosin heads propel the actin myofilaments toward the center of the sarcomere; this pulls the Z disks closer together, which shortens the sarcomere and the entire muscle a. location b. saddle Consider the following statements: I. Proximal radioulnar joint is a type of ellipsoidal joint. Examination of joint fluid focuses on those properties and constituents of value in determining the cause of effusions. Synovial joints are enclosed by a capsule. They store the calcium ions necessary for muscle contraction A strong, fibrous cord that attches muscle to bone Verified answer anatomy and physiology By answering yes or no, indicate which of the following provides an example of diffusion. Answer: FALSE Diff: 2 Page Ref: 223; Tbl. C saddle joints The angle between bones is increased a. cavities lined with cartilage c. amphiarthrosis True B. b. feet A increasing energy production Identify the following individuals and their contributions to the development of quantum theory: Bohr, de Broglie, Einstein, Planck, Heisenberg, Schrodinger. c. Not all cases of RA result in fluid accumulation, swelling, stiffness, impairment of joint movement, and extreme pain. A smell C the synovial membrane covers the joint capsule Based on the shape of the articulating bone surfaces and the types of movement allowed, synovial joints are classified into six types. Arthritis is a common disorder of synovial joints that involves inflammation of the joint. b. If the statement is false, correct it so it is a true statement. C compact bone in flat and irregular bones It is a complex hinge joint composed of two articulations; the tibiofemoral joint and patellofemoral joint. The bone tissue underlying the damaged articular cartilage also responds by thickening, producing irregularities and causing the articulating surface of the bone to become rough or bumpy. d. attach to each other in their midportions, The ligaments that protect the alignment of the femoral and tibial condyles and limit the movement of the femur anteriorly and posteriorly are called ________. articular cartilage The act of increasing the angle between bones is ____________________. b. D elastic connective tissue, In the long bones of children, growth occurs at the b. articular (joint) capsule Rather, the scapulothoracic articulation is formed by the convex surface of the posterior thoracic. d. biaxial, When you bring any of your fingers in contact with your thumb, this movement is called __________. C fibrous connective tissue b. synovial membranes b) Bursae improve the fit between two ; True or False: Articular cartilage at any synovial joint is a cartilaginous joint. C \rightarrow D \\ c. ligaments d. the "cocked" position of the heads of the thick filaments, A muscle twitch differs from a tetanic cpntraction in that: If a joint can exhibit adduction and abduction, then it is biaxial.