Body systems worksheet - Free Printable

Let’s solve this step by step.

We need to sort each organ into the correct body system it belongs to. There are five systems shown:

1. Nervous System
2. Respiratory System
3. Digestive System
4. Skeletal System
5. Circulatory System

We’ll go through each organ one by one and assign it to the right system.

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Step 1: List all organs from the image

From the word bank, here are all the organs listed:

- Pancreas
- Tibia
- Heart
- Vertebral Column
- Spinal Cord
- Stomach
- Bronchi
- Nerves
- Femur
- Nasal Cavity
- Lungs
- Liver
- Humerus
- Intestines
- Brain
- Skull
- Trachea
- Veins
- Anus
- Esophagus
- Pharynx
- Larynx
- Ribs
- Arteries

Total: 24 organs

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Step 2: Sort them by system

Let’s group them logically.

✔ Nervous System – controls thoughts, movement, senses
→ Brain
→ Spinal Cord
→ Nerves

(That’s 3)

✔ Respiratory System – helps you breathe
→ Nasal Cavity
→ Pharynx (throat area for air)
→ Larynx (voice box)
→ Trachea (windpipe)
→ Bronchi (branches to lungs)
→ Lungs

(That’s 6)

✔ Digestive System – breaks down food
→ Mouth? Not listed. But we have:
→ Esophagus (food tube)
→ Stomach
→ Liver (makes bile)
→ Pancreas (digestive enzymes)
→ Intestines (small and large)
→ Anus (exit point)

Wait — is liver part of digestive? Yes, it produces bile that helps digest fat.
Pancreas also makes digestive juices. So yes.

So:
→ Esophagus
→ Stomach
→ Liver
→ Pancreas
→ Intestines
→ Anus

(That’s 6)

✔ Skeletal System – bones that support your body
→ Skull
→ Vertebral Column (spine)
→ Ribs
→ Humerus (upper arm bone)
→ Tibia (shin bone)
→ Femur (thigh bone)

(That’s 6)

✔ Circulatory System – moves blood around
→ Heart
→ Arteries (carry blood away from heart)
→ Veins (carry blood back to heart)

(That’s 3)

Now let’s count total assigned:

Nervous: 3
Respiratory: 6
Digestive: 6
Skeletal: 6
Circulatory: 3
Total = 24 → matches!

Perfect.

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Final Answer:

Nervous System:
Brain, Spinal Cord, Nerves

Respiratory System:
Nasal Cavity, Pharynx, Larynx, Trachea, Bronchi, Lungs

Digestive System:
Esophagus, Stomach, Liver, Pancreas, Intestines, Anus

Skeletal System:
Skull, Vertebral Column, Ribs, Humerus, Tibia, Femur

Circulatory System:
Heart, Arteries, Veins