Anatomy Chapter 8: Articulations Flashcards

Questions and Answers

A joint that allows only a small amount of movement is called a?

amphiarthrosis

Synovial joints are?

diarthroses

A freely movable joint is classified as a?

diarthrosis

Which of the following best represents the functional classifications of joints ranked from least movable to most movable?

synarthrosis, amphiarthrosis, diarthrosis Signup and view all the answers

Functionally, how are cartilaginous joints classified?

synarthroses or amphiarthroses Signup and view all the answers

Which structural joint classification is held together by dense regular collagenous connective tissue?

fibrous Signup and view all the answers

What best describes the structure of a synovial joint?

A fluid-filled cavity is found between the articulating bones. Signup and view all the answers

Joint classifications are known as structural classifications when based on the degree of motion they allow?

False Signup and view all the answers

Two bones joined by dense regular collagenous connective tissue form a?

fibrous joint Signup and view all the answers

A synarthrosis that forms between adjacent bones of the skull is called a?

suture Signup and view all the answers

What fiber is commonly associated with fibrous joints?

collagen Signup and view all the answers

Classify these joints to the correct structural classification: sutures, syndesmoses, and gomphoses?

fibrous Signup and view all the answers

Which type of fibrous joint is found between bones of the cranium?

suture Signup and view all the answers

Which of the following is an example of a syndesmosis?

the interosseous membrane situated between the radius and ulna in the forearm Signup and view all the answers

Syndesmosis is to ligament as symphysis is to?

fibrocartilage Signup and view all the answers

An epiphyseal plate is an example of a?

synchondrosis Signup and view all the answers

Which of the following is true about both symphyses and synchondroses?

they do not have a joint Signup and view all the answers

A herniated disc of the vertebral column would be an injury affecting a?

symphysis Signup and view all the answers

What best describes cartilaginous joints?

little, if any, motion Signup and view all the answers

Which of the following is a cartilaginous joint?

synchondrosis Signup and view all the answers

Synchondroses unite bones with while symphyses unites bones with .

hyaline cartilage; fibrocartilage Signup and view all the answers

Which of the following cartilaginous joints is found only in young, growing people?

epiphyseal plate Signup and view all the answers

Which of the following cartilaginous joints functions primarily in protection and shock absorption of the spinal column?

intervertebral disc Signup and view all the answers

Symphysis joints provide no movement and are functionally classified as synarthroses.

False Signup and view all the answers

The structure that connects muscle to bone is called a?

tendon Signup and view all the answers

What part of the joint cavity lubricates the joint, supplies nutrients, and removes metabolic wastes, and absorbs shock?

synovial fluid Signup and view all the answers

Which statement best describes tendon sheaths?

Tendon sheaths protect long tendons as they course over and around synovial joints. Signup and view all the answers

Articular cartilage in synovial joints is avascular. Which of the following sources nourishes the cartilage with nutrients and removes metabolic byproducts?

synovial fluid Signup and view all the answers

The anterior cruciate ligament anchors the tibia bone to?

a muscle Signup and view all the answers

What do ligaments connect together?

bones Signup and view all the answers

Which statement best describes a bursa?

A bursa is a synovial fluid-filled structure lined with synovial membrane on its inner surface. Signup and view all the answers

Both synovial fluid and articular cartilage function in shock absorption and the lubrication of a synovial joint.

True Signup and view all the answers

Eversion is a movement in which?

the plantar surface of the foot rotates laterally Signup and view all the answers

Shaking the head to indicate 'yes' involves?

flexion and extension of the neck Signup and view all the answers

Abduction is a?

movement of a body part away from the midline Signup and view all the answers

What type of joint allows motion around only one axis?

uniaxial Signup and view all the answers

Study Notes

Joint Classifications

Amphiarthrosis: A joint allowing only a small amount of movement.
Diarthrosis: A freely movable joint classified as a synovial joint.
Functional joint classifications ranked from least to most movable: synarthrosis, amphiarthrosis, diarthrosis.
Cartilaginous joints classified as synarthroses or amphiarthroses based on mobility.

Structural Joint Classifications

Fibrous joints: Held together by dense regular collagenous connective tissue.
Joints classified structurally include sutures, syndesmoses, and gomphoses, all considered fibrous.
Sutures: A type of synarthrosis found between adjacent bones of the skull.
Syndesmosis: Example includes the interosseous membrane between the radius and ulna.

Cartilaginous Joints

Types of cartilaginous joints: symphyses and synchondroses.
Synchondrosis: Unites bones with hyaline cartilage, exemplified by an epiphyseal plate.
Symphyses: Unite bones with fibrocartilage and function primarily for protection and shock absorption.
A herniated disc affects a symphysis joint.

Joint Structure and Function

Synovial joints: Characterized by a fluid-filled cavity between articulating bones for movement and cushioning.
Synovial fluid: Lubricates joints, provides nutrients, absorbs shocks, and is crucial for avascular articular cartilage nourishment.
Tendons connect muscle to bone, while ligaments connect bones together.
Bursa: A fluid-filled structure protecting long tendons around synovial joints.

Joint Movement Types

Eversion: Movement where the plantar surface of the foot rotates laterally.
Flexion and extension of the neck: Used to indicate "yes" through shaking the head.
Abduction: Movement of a body part away from the midline.
Uniaxial joints: Allow motion around only one axis.

Truth Statements

Symphyses do allow movement, contradicting the notion they are functionally classified as synarthroses.
Both synovial fluid and articular cartilage aid in shock absorption and lubrication in synovial joints.

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Description

Test your knowledge on articulations with these flashcards from Chapter 8. This quiz covers various types of joints and their classifications, enhancing your understanding of joint mobility. Perfect for students studying anatomy or related fields.