In this animated and interactive object, learners identify the valves and chambers of the heart.

In this video learners view the valves and chambers of the heart.

Learners examine how air-to-open valves and air-to-close valves are used in different situations. A brief quiz completes the activity.

Learners view an animation of a sequence valve in operation and examine the valve’s internal structure.

In this animated activity, learners examine the operation of normally open and normally closed valves used in hydraulics. A brief quiz completes the learning object.

In this animated object, learners examine the operation of two-way, three-way, and four-way directional control valves used in pneumatic systems.

Learners view an animation of a counterbalance valve in operation and examine the valve’s internal structure.

Learners examine the operation of five pneumatic animated circuits that use directional control valves, pilot lines, check valves, needle valves, and cylinders.

The user completes a fill-in-the-blank exercise to review the anatomy of the heart.

In this animated activity, learners examine the operation of hydraulic directional control valves and the internal components that divert the fluid.

In this screencast, learners examine the internal structure of an unloading valve. This learning object includes a video clip demonstrating the use of an unloading valve in a metal stamping application.

In this screencast, learners identify the parts of the cardiovascular system and examine blood flow.

In this animated activity, learners examine how an adjustable pressure-reducing valve can produce a pressure that is lower at its output than at its input.

In this colorful and animated activity, learners study the operation of a needle valve and the operation of the needle valve with a check valve. A brief quiz completes the activity.

The operation of a hydraulic brake valve, including the internal components, is presented using animations.

Learners use animated needle valves and check valves to change the speed of a pneumatic cylinder as it extends and retracts. A brief quiz completes the learning object.

In this animated object, learners examine the operation of a hydraulic relief valve and its internal components. A brief quiz completes the activity.

In this animated activity, learners examine the symptoms of four cardiac conditions: coronary artery disease, myocardial infarction, congestive heart failure, and valvular disease.

In this animated and interactive object, learners examine how blood flows through the heart and lungs. A brief quiz completes the activity.

In this animated object, learners follow an analogy of water flowing through pipes and valves to see how resistance decreases in a parallel circuit as branches are added.