Arthrology: Study of Joints in Kinesiology
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Questions and Answers

Arthrology is the study of muscles and their functions.

False

Understanding impairments of joints is not important in kinesiology.

False

The design of a joint depends solely on the components and not on its function.

False

Joints designed for stability are different from joints designed for mobility.

<p>True</p> Signup and view all the answers

Design complexity increases as functional demands decrease.

<p>False</p> Signup and view all the answers

Synarthroses allow for a wide range of movement between bones.

<p>False</p> Signup and view all the answers

Arthrokinematics and osteokinematics are among the objectives of studying arthrology.

<p>True</p> Signup and view all the answers

Classification of joints based on movement potential is not relevant in arthrology.

<p>False</p> Signup and view all the answers

Passive ROM involves maximum force by the extensors in middle range.

<p>False</p> Signup and view all the answers

Degrees of freedom refer to the number of independent movements allowed at a joint.

<p>True</p> Signup and view all the answers

Impure swing in osteokinematics involves pure back and forth movement around a fix pivot point in one plane.

<p>False</p> Signup and view all the answers

The physiological barrier marks the end of the outer range of motion.

<p>False</p> Signup and view all the answers

Joint play refers to the externally forced movement of one articular surface over another.

<p>True</p> Signup and view all the answers

Active ROM involves maximum force by the extensors in inner range.

<p>True</p> Signup and view all the answers

End feel is the underpressure experienced at the end of passive ROM.

<p>False</p> Signup and view all the answers

Spin in osteokinematics involves rotation around a joint axis.

<p>False</p> Signup and view all the answers

Connective tissues have the inherent ability to tolerate loads.

<p>True</p> Signup and view all the answers

Stress is defined as the force applied per unit area.

<p>True</p> Signup and view all the answers

Strain refers to the change in shape, length, or width of a structure.

<p>True</p> Signup and view all the answers

The stress-strain curve has only one zone.

<p>False</p> Signup and view all the answers

In the elastic or linear zone, the tissue returns to its original length or shape, and most of the energy used to deform the tissue is released once the deforming force is removed.

<p>True</p> Signup and view all the answers

The load applied to a structure or material is always an external force.

<p>False</p> Signup and view all the answers

The type of stress and strain that develops in human structures is independent of the nature of the material, type, direction, magnitude and rate and duration of the load that is applied, and the point of application of the load.

<p>False</p> Signup and view all the answers

The stress-strain curve shown in the figure represents the tension generated by an excised ligament that has been stretched to a point of mechanical failure.

<p>True</p> Signup and view all the answers

The articular surface of one bone in an ovoid joint is convex, and the other is concave.

<p>True</p> Signup and view all the answers

In a saddle joint, both bones have paired convex and concave surfaces oriented at a 45° angle to each other.

<p>False</p> Signup and view all the answers

Synovial fluid helps reduce friction in diarthrodial/synovial joints.

<p>True</p> Signup and view all the answers

Articular cartilage covers the bones in diarthrodial/synovial joints.

<p>True</p> Signup and view all the answers

Intraarticular discs or menisci are always present in diarthrodial/synovial joints.

<p>False</p> Signup and view all the answers

Osteokinematics describes the motion between the articular surfaces of joints.

<p>False</p> Signup and view all the answers

Compression is an example of an axial translatory force in joint kinetics.

<p>True</p> Signup and view all the answers

Joint play is necessary for the articular surfaces to slide in the desired direction of bone movement.

<p>True</p> Signup and view all the answers

Tissues that are elongated beyond their physiologic range eventually reach their yield point.

<p>True</p> Signup and view all the answers

Plastic deformation of a tissue is recoverable when the deforming force is removed.

<p>False</p> Signup and view all the answers

The anterior cruciate ligament is normally strained about 3-4% during common activities.

<p>True</p> Signup and view all the answers

Most healthy tendons fail at about 8-13% beyond their prestretched length.

<p>True</p> Signup and view all the answers

Plasticity is the physical behavior of an overstretched or overcompressed tissue.

<p>True</p> Signup and view all the answers

In the plastic zone, microscopic failure has occurred and the tissue remains permanently deformed.

<p>True</p> Signup and view all the answers

Increased strain in the plastic zone results in significant increased stress (tension).

<p>False</p> Signup and view all the answers

The design of a joint is dependent solely on its function.

<p>False</p> Signup and view all the answers

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