SEELEY'S ANATOMY+PHYSIOLOGY
12th Edition
ISBN: 9781260172195
Author: VanPutte
Publisher: RENT MCG
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Chapter 8, Problem 19RAC
Summary Introduction
Introduction:
Joints are formed by the articulation of the surfaces of two or more bones. They also consist of cartilage, synovial membrane, ligaments, tendons, synovial fluids, bursa and meniscus. With aging, there are a number of changes that occur within the joints due to a decrease in strength of ligament and tendons and the modification in the protein structure of collagen fiber.
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Chapter 8 Solutions
SEELEY'S ANATOMY+PHYSIOLOGY
Ch. 8.1 - What two standards are used to classify joints?...Ch. 8.1 - What are the characteristics of a fibrous joint?...Ch. 8.1 - What is a synostosis? How does it differ from a...Ch. 8.1 - Name the two types of cartilaginous joints, tell...Ch. 8.1 - Prob. 5AYPCh. 8.1 - Prob. 6AYPCh. 8.1 - Prob. 7AYPCh. 8.1 - On what basis are synovial joints classified? List...Ch. 8.1 - What directional movements are permitted at each...Ch. 8.2 - Describe flexion and extension. How are they...
Ch. 8.2 - Prob. 11AYPCh. 8.2 - Prob. 12AYPCh. 8.2 - Prob. 13AYPCh. 8.2 - Describe opposition and reposition of the thumb.Ch. 8.2 - Prob. 15AYPCh. 8.3 - What is range of motion? Contrast active and...Ch. 8.3 - Prob. 17AYPCh. 8.4 - Prob. 18AYPCh. 8.4 - Prob. 19AYPCh. 8.4 - Explain the differences in stability and movement...Ch. 8.4 - List the common knee injuries, and tell which port...Ch. 8.4 - Prob. 22AYPCh. 8.5 - Prob. 23AYPCh. 8.5 - Describe the age-related factors that cause loss...Ch. 8.5 - Prob. 25AYPCh. 8 - Which of these joints is not matched with the...Ch. 8 - Prob. 2RACCh. 8 - Prob. 3RACCh. 8 - Prob. 4RACCh. 8 - Prob. 5RACCh. 8 - Prob. 6RACCh. 8 - Which of these joints is correctly matched with...Ch. 8 - Prob. 8RACCh. 8 - Prob. 9RACCh. 8 - Prob. 10RACCh. 8 - Prob. 11RACCh. 8 - Prob. 12RACCh. 8 - For a ballet dancer to stand on her toes, her feet...Ch. 8 - Prob. 14RACCh. 8 - A lip (labrum) of fibro cartilage deepens the...Ch. 8 - Prob. 16RACCh. 8 - Prob. 17RACCh. 8 - Prob. 18RACCh. 8 - Prob. 19RACCh. 8 - How would body function be affected if the sterna...Ch. 8 - Prob. 2CTCh. 8 - For each of the following muscles, describe the...Ch. 8 - Prob. 4CT
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- Which of the following summarizes the role of calcium in muscle contraction? opens the binding sites for cross bridge activity neurotransmitter that initiates the motor impulse for a contraction to occur restabilizes the ion concentration for sustained contractionsarrow_forwardWhat happens as a result of the movement of tropomyosin? Calcium is pumped into the sarcoplasmic reticulum Active sites on actin are revealed Release of calcium from terminal cisternae Troponin changes its shapearrow_forwardMolly is a 10-year-old girl of short stature with hyperelastic skin which bruises easily, and hypermobile joints which are easily dislocated. Molly's mother said that Molly's diet includes fruits and vegetables high in Vitamin C, so she does not have a vitamin C deficiency. She also has no signs of anemia and has normal iron levels. You decide to refer Molly to a surgeon who will correct the looseness of Molly's joints. The surgeon agrees to take skin samples during the surgery so that you can perform an analysis of her fibroblasts. These cells produce connective tissue in the skin. Because skin, ligaments, and tendons have collagen as their major structural protein, you suspect that Molly is unable to synthesize collagen properly and you wish to test this hypothesis. That evening, you have dinner with your old college friend, who is now a veterinarian. You describe Molly's symptoms to her and she remarks that Molly's symptoms sound remarkably similar to a condition called…arrow_forward
- The following list of events take place during a muscle contraction. Place the events in chronological order as they relate to a muscle contraction. Calcium is released from the sarcoplasmic reticulum. Myosin heads bind to actin. An action potential arrives at the axon terminal of a motor neuron. Calcium binds to troponin, displacing tropomyosin and exposing myosin head binding sites on actin. Myosin heads undergo power stroke and actin slides over myosin towards M line of sarcomere. Acetylcholine is released at the neuromuscular junction.arrow_forwardWhich statement or statements describe why depletion of ATP after death leads to rigor mortis? Select all that apply. ATP is required to move tropomyosin back over the active sites of thin filaments. ATP is required for myosin thick filaments to detach from actin thin filaments. ATP is required to pump calcium back into the sarcoplasmic reticulum. ATP is required for the action potential to spread across the sarcolemma.arrow_forwardWhat event occurs immediately before the movement of tropomyosin? Initiation of the power stroke Cross bridge formation Active sites on actin are revealed Release of calcium from terminal cisternae Troponin changes shapearrow_forward
- This is a case from the Seeley, Stephens and Tate Anatomy and Physiology, 6th Edition A 15-year-old football player is tackled during a game, and the epiphyseal plate of the left femur is damaged (figure 6.16). What are the results of such an injury, and why is recovery difficult? Diaphyris of lemur Fractured eplphyseal plate Eplphysia Joint cavity Epiphyseal plate Diaphysis of tibla Figure 6.16 Fracture of the Epiphyseal Plate Radlograph of an adolescent's knee. The femur (thighbone) s separated from the tibla (leg bane) by a Jolnt cavíty. The eplphysenl plate of the femur is fractured, thereby separating the diaphysis from the epiphysis.arrow_forwardWhich is not a mechanical function of the skeletal system? Support Protection Mineral storage Movementarrow_forwardChoose ALL of the answers below that correctly describe the structure of a synovial joint: Has an articular (joint) capsule Fibrous connective tissue connects the bones together so they can't move Articular cartilage covering the epihyses of the articulating bones O Synovial fluidarrow_forward
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