See It · Introduction to the Human Body

Body Basics Lab

Point to body parts, slice through the body, sort organs, and run feedback loops. Nothing here is graded.

Can't click the picture? Choose an area:

Body Atlas

How to play

Wrong answers are fine here. Read why, then try again.

Object: Plane: Position

Explore

Try this

Planes

Sagittal: left and right parts. Midsagittal = equal halves; parasagittal = unequal.
Frontal (coronal): front and back parts.
Transverse (horizontal): upper and lower parts. Makes a cross-section.

Which plane made this section?

Wrong answers are fine here. Read why, then try again.

Your goal

How to play

Drag an item onto the picture or onto a place button.
Or tap an item to pick it up, then tap where it goes. Keyboard: Tab to an item, Enter, then Tab to a place and Enter.

Stars

3 stars: almost all right on the first try. Answers you reveal with "Show answer" count as misses.

Your goal

Is this negative or positive feedback?

Some cards do not belong in this loop. Drag or tap a card, then a slot.

Room temperature 22 °C Activity: Body responses on Relaxed speed

Core body temperatureSet point 37 °CNormal rangeRoom temperature

Thermoregulation simulator

Steady

Challenges

Time is sped up: one second on screen is about one minute in the body (two seconds in relaxed speed).

Run automatically

Positive feedback run

Labor begins

What ended this loop?

Compare

Negative feedback pushes a value back toward its set point. Most loops work this way.
Positive feedback pushes the value further in the same direction, faster and faster, until an end point stops it.

Dr. Akash Garg · See It: Anatomy & Physiology · Chapter 1, An Introduction to the Human Body (OpenStax Anatomy & Physiology 2e) · Learn it first in the Body Basics Walkthrough.
Diagrams are simplified and not to scale. Organ positions are approximate, and the temperature and labor models are teaching models with time sped up, not clinical predictions. Best scores are saved only in this browser.