Identify main vessels in a whole-body anatomical image
Transfer the named routes to an unchanged published illustration.
Section 9.3 · Blood vessels
Core and Extended; Biology 0610, 2026–2028. Use the stated specimen features and evidence. Diagrams are schematic. Written practice is self-checked
Before you begin
- Recall the heart, lung and renal connection maps.
Work on paper. Try each question before revealing help, and explain why your method works.
Quick readiness check
What does a. mean in this image?
What you will learn
- Read a complex image selectively
- Use orientation and the full-size view
Read the named vessel routes
Unchanged front-view anatomical illustration. Focus on aorta, vena cava, pulmonary artery/vein and renal artery/vein; other labelled vessels are outside this identification task.
Enlarge image for inspection
Scroll across the enlarged image to inspect labels and cell features. The whole source image is retained. Use the identification key after trying the questions.
Check the identification key
a. means artery; v. means vein. Aorta arches above the heart and continues downwards; superior and inferior vena cava return body blood. Pulmonary a. and v. identifies the lung pair: pulmonary artery right ventricle → lungs, pulmonary vein lungs → left atrium. Renal a. and v. identifies the kidney pair: renal artery from aorta to kidney, renal vein from kidney towards vena cava. The paired labels identify regions; distinguish individual vessel routes by their heart-directed or heart-away connections. Colours are conventions; use direction, not colour, to define artery or vein.
Read a complex image selectively
The supplied illustration by Mariana Ruiz Villarreal, with later updates by Jmarchn, is an anatomical drawing rather than a photograph of a dissection. It names many vessels beyond this requirement. Begin with aorta and superior/inferior vena cava around the heart, pulmonary artery and vein around the lungs, and renal artery and vein at the kidneys.
The key uses a. for artery and v. for vein. Some labels name a pair with one leader line, including pulmonary a. and v. and renal a. and v. Follow the routes as a pair, then use away-from-heart or towards-heart direction to distinguish the artery from the vein. A leader to a region does not itself measure blood flow.
Use orientation and the full-size view
The aorta arches above the heart and continues as the descending aorta. The large vena-cava routes return blood to the right side. The paired renal branches run to and from the kidneys in the abdomen. Anatomical right appears on the viewer’s left in this front view; do not rename a vessel from its page-side alone.
Open the full-size image to read small labels and attempt the tasks before expanding the key. The liver portal label is visible, but this lesson does not use that whole-body view to establish every hepatic artery detail. A separate liver illustration supplies those Extended identifications. This is recognition practice, not diagnosis or a required recall of every label on the image.
Pause and explain
Which required vessels are named at the kidneys?
Worked example
Find “renal a. and v.” in the image and expand it. What organ and two routes does it identify?
Show the worked solution
- Locate the branches beside the abdominal kidneys.
- Expand a. and v. and distinguish supply from return.
Answer Renal artery supplies a kidney; renal vein returns its blood towards the vena cava.
Try a topic test
Choose Easy, Normal or Difficult. Save your answers and open worked review after finishing.
Test this topic →From guided practice to a new situation
Write your answer and reasoning first. Use a hint only if you are stuck. The model solution is for self-checking; your written work is not automatically marked.
Locate and name the large systemic supply and the upper/lower systemic returns in the image.
Give me a hint
Read the arch and the vena-cava labels.
Compare my reasoning
- The supply is aorta, including its descending continuation.
- The returns are superior and inferior vena cava.
Aorta supplies the body; superior and inferior vena cava return blood to the heart.
Look for these in your work
- Identify aorta
- Identify both labelled vena-cava routes
Expand “pulmonary a. and v.” and state both heart connections.
Give me a hint
Use the lung circuit rather than colour alone.
Compare my reasoning
- Pulmonary artery runs right ventricle → lungs.
- Pulmonary vein returns lungs → left atrium.
Pulmonary artery: right ventricle → lungs. Pulmonary vein: lungs → left atrium.
Look for these in your work
- Expand both names
- State both connections
A learner uses the paired renal leader to claim a measured equal flow speed in both vessels. What can the image establish?
Give me a hint
A label is identification evidence, not a speed measurement.
Compare my reasoning
- It identifies a renal artery/vein pair near the kidney.
- It provides no timed flow measurement.
It supports vessel identification and the supply/return route, but cannot establish equal numerical speeds.
Look for these in your work
- Retain identification evidence
- State the measurement limit
Common mistakes
- Treating an anatomical drawing as a photomicrograph.
- Trying to memorise every label rather than the required vessels.
What can you explain now?
Which required vessels are named at the kidneys?
Compare with the explanation
Renal artery and renal vein
The paired renal label identifies both.
After trying it yourself, choose your next review. This is your self-assessment.
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Make it stick
Close the key and locate the aorta, vena cava, pulmonary pair and renal pair.
If you needed the solution, close it and solve the problem again from a blank page. A correct answer is stronger when you can explain the reason for each step.