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Freely movable joints such as the knuckles are called _______.


Skull sutures and other immovable joints are called ________.


The lambdoid suture, in which the bones are joined along a wavy line, is an example of a/an ________ suture.


Two long bones joined by a broad interosseous membrane form a type of joint called a/an __________.

Synovial Fluid

The lubricant in the joint cavity of a diarthrosis is called __________.

Tendon sheath

A long, tubular bursa enclosing a tendon is called a/an _________.

Range of motion

THe maximum angle through which a joint can move is called its _________.

Effort arm

The part of a lever from the fulcrum to the resistance is called the ________.

Effort, fulcrum

In the elbow, a third-class lever, the ______ is between the ________ and the resistance.


If you keep your heels on the floor but raise your toes, you are performing the action of ________.


Firous band or cord connecting one bone to another.


Fibrous sac filled with synovial fluid, adjacent to a joint cavity.

Saddle joint

Synovial joint type unique to the trapeziometacarpal joint.

Pivot joint

Synovial joint type seen between the radius and ulna and between the atlas and axis.

Rotator cuff

Formed by tendons of the subscapularis, supraspinatus, infraspinatus, and teres minor muscles.

Acetabular labrum

Deepens the socket of the hip joint and helps stabilize the joint.


Location of the anterior and posterior cruciate ligaments.

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