Body planes and cavities
Fri, Feb 5, 2027 · Week 3 · Human Anatomy & Physiology (Human Body Systems)
Today's goal: Identify the body planes and major cavities and the organs each contains.
This is a worked anatomy reference key. Use the supplied labels for your own diagram; no new data are required. The distinct location model is supplied in E3 on the lesson page.
Planes (labeled on the figure):
- Sagittal plane: divides the body into left and right.
- Frontal (coronal) plane: divides the body into anterior (front) and posterior (back).
- Transverse plane: divides the body into superior (top) and inferior (bottom).
Cavities (labeled with one organ each):
- Dorsal cavity: cranial cavity holds the brain; spinal cavity holds the spinal cord.
- Ventral cavity: thoracic cavity holds the heart and lungs; abdominopelvic cavity holds the stomach, intestines, and bladder.
Worked reference lines, not a student completion claim:
- Separate left from right: sagittal plane.
- Separate front from back: frontal (coronal) plane.
- Separate top from bottom: transverse plane.
| Cavity | Subdivision | Example organ |
|---|---|---|
| Dorsal | Cranial | Brain |
| Dorsal | Spinal | Spinal cord |
| Ventral | Thoracic | Heart, lungs |
| Ventral | Abdominopelvic | Stomach, intestines |
This model shows the level of evidence and organization needed to complete: A reference model for one dated planes-and-cavities diagram; your own diagram, photo, official matching and submission remain separate actual work.
- Use the supplied plane and cavity definitions before drawing.
- Label the three planes, both major cavities and their subdivisions; place an example organ in each major cavity.
- Check the same diagram, add its date and three which-plane lines, then photograph it. Keep actual upload and official matching pending until verified.
Use the supplied anatomy reference for your own diagram. No new measurements, patient findings or extra investigation are required. The worked model does not complete your diagram, photo, official matching or submission.
Also due today: Complete your own dated notebook diagram and photograph it. Use your confirmed section assignment; actual upload, receipt and official matching stay pending if unavailable.
Turn in: Labeled body-planes and body-cavities diagram with at least one organ placed in each major cavity.
Go to Schoology to turn this in.
Submit one PDF. Schoology attaches your name to your upload; on the page itself, write your period and code. Name the file: FirstName LastName - Assignment Title - YYYY-MM-DD.pdf.
Open Schoology PDF upload helpIf you cannot get in, see Mr. Mendoza. Do not skip the work.
Claim ceiling: Label planes by the portions they separate and place organs in the cavity your figure shows. A labeled diagram cannot show a real patient's organs, a mass, or which scan to order.
One exam-style question that uses exactly what you practiced today. Try it before you reveal the answer, then read why each choice is right or wrong.
Tap an answer to see the full explanation. Nothing is recorded or graded.
It builds this reusable test skill: Naming the plane that divides the body into left and right.
- Name the concept or data pattern being tested.
- Cross out choices that violate that rule or the evidence.
- Justify the best remaining choice before checking the answer.