Lecture 4 - Articulations A+P1

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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?

Rotation only Signup and view all the answers

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

Gliding joint Signup and view all the answers

What is the opposite movement of flexion?

Extension Signup and view all the answers

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

Symphysis 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?

Synchondrosis Signup and view all the answers

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

To absorb shock and reduce friction Signup and view all the answers

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

Extracapsular ligament Signup and view all the answers

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

To absorb shock and deepen the articular surface 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?

Interosseous membrane Signup and view all the answers

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

To deepen the articular surface Signup and view all the answers

What is the function of the bursae in joints?

To cushion movement between tendons and bones Signup and view all the answers

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

Diarthrosis 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?

Suture Signup and view all the answers

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

Abduction 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?

Circumduction Signup and view all the answers

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

Rotation Signup and view all the answers

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

Dorsiflexion Signup and view all the answers

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

Ball and socket joint Signup and view all the answers

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

Rotator cuff muscles Signup and view all the answers

What is the joint that connects the acromion and clavicle?

AC joint Signup and view all the answers

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

Hinge joint 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?

Annular ligament Signup and view all the answers

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

Knee joint Signup and view all the answers

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

Prevents the femur from sliding posteriorly to the tibia Signup and view all the answers

Which meniscus is nearly circular in shape?

Lateral Meniscus Signup and view all the answers

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

Tibial spine fracture Signup and view all the answers

Which ligament prevents excessive inversion of the foot?

Anterior talofibular ligament Signup and view all the answers

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

To absorb shock and distribute pressure evenly Signup and view all the answers

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

Cartilaginous joint Signup and view all the answers

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

To form articulations and hold bones together Signup and view all the answers

What is the main characteristic of synarthrosis joints?

They are immovable Signup and view all the answers

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

Dense connective tissue Signup and view all the answers

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

Synovial joint Signup and view all the answers

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

Type of movement permitted Signup and view all the answers

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