In this interactive object, learners identify a variety of prevention activities as primary, secondary, or tertiary.

In this animated object, the learner examines 17 types of joint movement.

In this animated object, learners examine the mechanisms for gas exchange among the lungs, blood, and tissues.

In this video you'll study the structure of the cell membrane and construct it using the correct molecules.

In this interactive object, the learner matches various disorders to the acid-base disturbances they cause.

In this screencast, learners review the parts of the gastrointestinal system and then check their knowledge in a matching exercise.

Explore what passive transport osmosis is and how it moves water through a semipermeable membrane.

In this animated object, learners examine how psychotropic medications act on neurotransmitter systems to achieve their desired effect.

Students view an enlarged, colorful depiction of the contents of an average square inch of skin.

In this interactive object, learners examine the characteristics of osteoarthritis, rheumatoid arthritis, and osteoporosis. Students then describe the precautions to be aware of when working with clients who have arthritis and identify assistive devices that clients might use to prevent injuries at home.

In this animated object, learners examine synthesis, decomposition, exchange, and reversible reactions.

In this interactive object, learners examine the locations of major body cavities and their protective membranes. A drag-and-drop exercise completes the activity.

In this interactive object, learners review case studies and identify complex arterial blood gases.

Learners examine the function and wiring of the sympathetic nervous system.

In this screencast, students read about the stages of microbial dental plaque formation and the time it takes for each stage to occur.

Learners consider the Apgar scores for several fictitious newborns. They are then given an Apgar score and proceed to create a situation in which a newborn would receive that rating.

In this learning activity you'll review information on the neural synapse.

In this animated object, learners trace the olfactory pathway from the nasal cavity to the olfactory cortex.

In this interactive learning object, learners study the parts of the brain and then test their knowledge in a drag-and-drop exercise.

In this interactive object, learners use their knowledge of postpartum theory and the nursing process to complete a plan of care. The student's plan may be e-mailed to the instructor.

In this learning activity you'll observe the growth of gram negative organisms and determine if they're lactose positive or negative.

In this colorful and interactive object, learners examine the structure and function of muscle and connective tissues. A quiz completes the activity.

The learner constructs a nail and identifies the terms relating to the structures of the nail in a matching exercise.

In this animated object, learners examine processes that do not use ATP directly including hydrostatic pressure and facilitated diffusion with carrier proteins.

This animated object illustrates the events leading to the migration of phagocytes into areas of tissue damage and/or bacterial presence. Learners view bacterial cell phagocytosis, its subsequent enzymatic digestion, and exocytosis.