Joint/Cartilage
Dermatomes
Levers
Stress and Strain
Viscera of Neck
100

The major collagen type found in articular cartilage.

Type II collagen

100

Sensation to the thumb is primarily supplied by this dermatome.

C6

100

What percentage of your body weight is leg?

18%

100

The percentage deformation of a tissue relative to its original length.

strain

100

Three single and three paired cartilages make up this structure

larynx

200

Approximately this percentage of articular cartilage by weight is water.

70-85%

200

This dermatome corresponds to the anterior thigh.


L2

200

This class of lever has the fulcrum located between the effort force and the resistance force.

first-class lever

200

A force applied perpendicular away from a tissue surface.

tensile load

200

A patient develops hoarseness after thyroid surgery due to injury of this nerve supplying most intrinsic laryngeal muscles.

recurrent laryngeal nerve

300

Articular cartilage increases this, allowing forces to be distributed more evenly across a joint.


surface contact area

300

A patient reports sensory loss over the middle finger. This spinal nerve root should be suspected.

C7

300

Most muscles in the human body operate through this class of lever.

third-class lever

300

The region in which tissue returns completely to its original length when the load is removed.

elastic region

300

This group of muscles elevates the hyoid and larynx during swallowing.

suprahyoid muscles

400

These three types of forces commonly act on articular cartilage.


compression, tension, and shear

400

Sensory loss over the lateral foot combined with difficulty performing heel raises suggests involvement of this nerve root.

L1

400

Standing on your toes during a heel raise is an example of this class of lever.

second-class lever

400

The point at which the tissue can no longer withstand the load and ruptures.

complete failure

400

This ligament connects the larynx to the trachea inferiorly

cricotracheal ligament

500

The mechanical stiffness of cartilage increases when these negatively charged molecules are pushed closer together.

proteoglycans (aggrecans)

500

A patient reports numbness at the lateral shoulder and weakness of shoulder abduction. This nerve root is most likely involved.

C5

500

A therapist shortens the resistance arm during exercise to reduce the demand on the muscle. One way to accomplish this is by doing this.

moving the weight closer to the joint axis

500

Connective tissues whose stress-strain behavior changes with time are described as this.

viscoelastic

500

These folds are located inferior to the false vocal folds and are responsible for phonation

true vocal folds