Lecture 4 - Articulations A+P1
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Questions and Answers

Which type of joint allows for flexion and extension only?

  • Pivot joint
  • Hinge joint (correct)
  • Gliding joint
  • Ball and Socket joint

What is the characteristic of the condyloid joint?

  • Permits rotation only
  • Consists of a rounded or pointed surface of one bone articulating with a ring formed by bone and ligament
  • Allows for flexion and extension only
  • Has a convex projection of one bone fitting into an oval-shaped depression in another (correct)

Which type of joint has a saddle-shaped bone and another bone that sits in the saddle?

  • Gliding joint
  • Hinge joint
  • Saddle joint (correct)
  • Pivot joint

What is the characteristic movement of the pivot joint?

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

Which type of joint has a convex surface of one bone fitting into the concave part of another?

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

What is the opposite movement of flexion?

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

What type of joint is characterized by a fibrocartilaginous disc and is designed for strength and shock absorbency?

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

What type of joint is found between the first rib and sternum in children, but becomes a synostosis as the bones grow?

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

What is the function of the synovial fluid in synovial joints?

<p>To absorb shock and reduce friction (D)</p> Signup and view all the answers

What type of ligament is found outside the joint capsule and stabilizes the joint?

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

What is the function of the menisci in the knee joint?

<p>To absorb shock and deepen the articular surface (C)</p> Signup and view all the answers

What type of joint is characterized by a sheet of dense connective tissue and is found between the tibia and fibula, and radius and ulna?

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

What is the function of the labrum in the shoulder and hip joints?

<p>To deepen the articular surface (A)</p> Signup and view all the answers

What is the function of the bursae in joints?

<p>To cushion movement between tendons and bones (D)</p> Signup and view all the answers

What type of joint is characterized by a freely movable joint with a synovial cavity or joint space?

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

What type of joint is characterized by a fibrous joint that is immovable in adults, but not closed in children?

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

What is the term for the movement of a bone away from the midline?

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

What is the term for the movement of a bone in a circle, involving a continuous sequence of flexion, abduction, extension, and adduction?

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

What is the term for the rotation of a bone around its own axis?

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

What is the special movement of the foot that involves the upward movement of the toes?

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

What is the type of joint that allows for the greatest degree of movement of any joint?

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

What is the ligament that provides the greatest amount of stability to the shoulder joint?

<p>Rotator cuff muscles (A)</p> Signup and view all the answers

What is the joint that connects the acromion and clavicle?

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

What is the type of joint that the elbow joint is classified as?

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

What is the ligament that surrounds the radial head and holds it to the radial notch of the ulna?

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

What is the joint that consists of three joints within one synovial cavity?

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

What is the primary function of the Anterior Cruciate Ligament (ACL) in the knee joint?

<p>Prevents the femur from sliding posteriorly to the tibia (B)</p> Signup and view all the answers

Which meniscus is nearly circular in shape?

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

What type of fracture is often associated with a torn Posterior Cruciate Ligament (PCL)?

<p>Tibial spine fracture (C)</p> Signup and view all the answers

Which ligament prevents excessive inversion of the foot?

<p>Anterior talofibular ligament (B)</p> Signup and view all the answers

What is the main function of the vertebral discs in the spine?

<p>To absorb shock and distribute pressure evenly (C)</p> Signup and view all the answers

Which type of joint is characterized by a strong, fibrous connective tissue between the bones?

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

What is the function of flexible connective tissue in the human body?

<p>To form articulations and hold bones together (B)</p> Signup and view all the answers

What is the main characteristic of synarthrosis joints?

<p>They are immovable (D)</p> Signup and view all the answers

What type of connective tissue binds bones together in fibrous joints?

<p>Dense connective tissue (A)</p> Signup and view all the answers

Which type of joint is characterized by the presence of a synovial cavity?

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

What is the main difference between functional and structural classification of joints?

<p>Type of movement permitted (B)</p> Signup and view all the answers

Which type of joint is characterized by the presence of dense connective tissue and accessory ligaments?

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

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