Classification of Synovial Joints

Questions and Answers

What are synovial joints classified according to?

The size of the joint

The type of movement allowed

The number of bones involved

The shape of the adjoining articular surfaces (correct)

What type of joint is classified as intervertebral?

Plane joint

What type of joint consists of two flat bone surfaces of about equal size?

Plane joint

Which joint is specifically found at the carpometacarpal of the thumb?

Saddle joint Signup and view all the answers

Describe the orientation of the surfaces in a saddle joint.

Oriented at right angles to each other Signup and view all the answers

What are some examples of hinge joints?

Cubital, elbow, and knee joints Signup and view all the answers

What defines a hinge joint?

A uniaxial joint in which a convex cylinder in one bone fits into a corresponding concavity in the other bone. Signup and view all the answers

What is an example of a pivot joint?

Proximal radioulnar Signup and view all the answers

What type of joint restricts movement to rotation around a single axis?

Pivot joint Signup and view all the answers

What joints are referred to as ball-and-socket joints?

Glenohumeral, shoulders, and hip Signup and view all the answers

Define the structure of a ball-and-socket joint.

Consists of a ball at the end of one bone and a socket in an adjacent bone. Signup and view all the answers

Give an example of an ellipsoid joint.

Atlantooccipital Signup and view all the answers

What is another name for an ellipsoid joint?

Condyloid joint Signup and view all the answers

Which type of joint consists of a modified ball-and-socket?

Ellipsoid joint Signup and view all the answers

Study Notes

Classification of Synovial Joints

Synovial joints are categorized by the shape of the adjoining articular surfaces.

Plane Joint

Also known as a gliding joint.
Examples include intervertebral joints; allows slight gliding motion between two flat bone surfaces of equal size.

Saddle Joint

Found in the carpometacarpal joint of the thumb.
Features two saddle-shaped articulating surfaces positioned at right angles to each other for complementary articulation.

Hinge Joint

Examples include the cubital (elbow) and knee joints.
Functions as an uniaxial joint where a convex cylinder of one bone fits into a matching concave surface of another.

Pivot Joint

Includes the proximal radioulnar joint and the atlantoaxial joint.
A uniaxial joint that allows rotation around a single axis.

Ball-and-Socket Joint

Examples are the glenohumeral joint (shoulder) and hip joint.
Consists of a spherical head from one bone fitting into the socket of another bone.

Ellipsoid Joint

Example is the atlantooccipital joint located in the neck area.
Also referred to as a condyloid joint, it is a modified ball-and-socket joint, allowing for movement in two planes.

Description

Explore the various types of synovial joints and their classifications in this informative quiz. Each flashcard provides essential definitions and examples to enhance your understanding of joint anatomy. Perfect for students studying anatomy and physiology!