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Questions and Answers

What is the primary function of joints in the human skeleton?

  • To store minerals and produce blood cells
  • To give the skeleton mobility and hold it together (correct)
  • To support the body during physical activity
  • To connect muscles to bones

Which of the following is NOT a structural classification of joints?

  • Synarthrosis (correct)
  • Fibrous
  • Synovial
  • Cartilaginous

Which type of joint is characterized by immobility and is formed by short collagenic fibers?

  • Gomphosis
  • Suture (correct)
  • Syndesmosis
  • Symphysis

Which type of cartilage provides the most support and flexibility and is the most abundant in the skeletal system?

<p>Hyaline cartilage (A)</p> Signup and view all the answers

What distinguishes synovial joints from other joint types?

<p>They contain a joint cavity filled with synovial fluid (A)</p> Signup and view all the answers

Which type of functional joint classification allows for slight movement?

<p>Amphiarthroses (A)</p> Signup and view all the answers

What is the characteristic feature of gomphosis joints?

<p>They connect teeth to their sockets via a periodontal ligament (A)</p> Signup and view all the answers

Which of the following is true about cartilage in the human body?

<p>Hyaline cartilage forms the blueprint for bone development. (A)</p> Signup and view all the answers

Which type of cartilage is characterized by a matrix containing many elastic fibers and is found in the epiglottis and external ear?

<p>Elastic cartilage (D)</p> Signup and view all the answers

What type of joint is a gomphosis, and what is its primary characteristic?

<p>A peg-in-socket joint connecting a tooth to its socket (A)</p> Signup and view all the answers

Which type of fibrous joint is characterized by a minimal amount of fibrous tissue and allows for bone growth in youth?

<p>Sutures (D)</p> Signup and view all the answers

Which description accurately reflects the structure of fibrocartilage?

<p>Contains two rows of thick collagen fibers and chondrocytes (D)</p> Signup and view all the answers

What type of fibrous joint connects bones exclusively by longer ligaments and can allow slight movement?

<p>Syndesmoses (A)</p> Signup and view all the answers

Which type(s) of fibrous joint(s) are classified under synarthrosis?

<p>Gomphoses and sutures (D)</p> Signup and view all the answers

The interlocking and wavy edges of bones are found in which type of joint?

<p>Sutures (B)</p> Signup and view all the answers

During middle age, what happens to the fibrous tissue of sutures?

<p>It ossifies and leads to bone fusion (A)</p> Signup and view all the answers

What is the primary function of the synovial membrane within a synovial joint?

<p>To produce synovial fluid. (B)</p> Signup and view all the answers

Which statement correctly describes the composition of synovial fluid?

<p>It resembles raw egg white and contains glycoproteins. (A)</p> Signup and view all the answers

What role do sensory nerve fibers play in synovial joints?

<p>They monitor the stretch of the capsule. (B)</p> Signup and view all the answers

What is the structural significance of the fibrous capsule in a synovial joint?

<p>It strengthens the joint to prevent bone separation. (C)</p> Signup and view all the answers

How do bursae function in relation to synovial joints?

<p>They act as ball bearings to reduce friction. (B)</p> Signup and view all the answers

What defines the attachment points of muscles across a joint?

<p>Origin is the attachment to the immovable bone. (A)</p> Signup and view all the answers

What is the significance of the blood vessels in synovial joints?

<p>They supply the synovial membrane, which produces synovial fluid. (B)</p> Signup and view all the answers

In which planes is joint movement typically described?

<p>Transverse, frontal, and sagittal planes. (D)</p> Signup and view all the answers

Which type of joint only allows for slipping or gliding movements?

<p>Plane (C)</p> Signup and view all the answers

Which of the following joints is not classified as uniaxial?

<p>Condyloid joint (A)</p> Signup and view all the answers

What type of joint allows the greatest range of motion?

<p>Ball and socket (A)</p> Signup and view all the answers

Which joint type allows for flexion and extension only?

<p>Hinge (C)</p> Signup and view all the answers

In terms of synovial joints, which of the following does not exhibit biaxial motion?

<p>Hinge joint (C)</p> Signup and view all the answers

Which joint is an example of a pivot joint?

<p>Proximal radioulnar joint (D)</p> Signup and view all the answers

What characterizes saddle joints?

<p>One bone has a concave surface and the other has a convex surface (A)</p> Signup and view all the answers

Which type of lever requires the effort to be applied between the fulcrum and the load?

<p>Third class lever (C)</p> Signup and view all the answers

What distinguishes a third-class lever from other types of levers in the human body?

<p>The effort is applied between the load and the fulcrum. (A)</p> Signup and view all the answers

Which of the following motions is characterized by a reduction in the angle of a joint?

<p>Flexion (D)</p> Signup and view all the answers

What type of motion occurs when one flat bone surface glides over another?

<p>Gliding motion (A)</p> Signup and view all the answers

What defines the movement of abduction at a joint?

<p>Movement away from the midline of the body. (B)</p> Signup and view all the answers

Which joint movement describes the rolling of the foot onto its outer edge?

<p>Eversion (D)</p> Signup and view all the answers

In which type of lever is the fulcrum located between the load and the effort?

<p>First-class lever (B)</p> Signup and view all the answers

What type of movement is described when the radius and ulna are parallel?

<p>Supination (D)</p> Signup and view all the answers

Which joint involves rotational motion as it turns around its own long axis?

<p>Shoulder joint (D)</p> Signup and view all the answers

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