Functions of Internal Body Organs worksheet - Free Printable

Let’s match each function to the correct organ based on what we know about how the human body works.

We have 10 functions and 7 organs shown (brain, esophagus/throat area, skeleton/ribs, heart, lungs, stomach). Some organs may be used more than once if they fit multiple functions — but looking at the list, it seems each number should match one organ from the image. Let’s go step by step.

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Function 1: Protects other body parts
→ This is likely the skeleton (ribs) because bones protect internal organs like the heart and lungs.

Function 2: Receives food after it has been swallowed
→ After swallowing, food goes down the esophagus (shown as the tube in the neck/chest area). So this matches the second image (throat/esophagus region).

Function 3: Gives your body support and shape
→ Again, that’s the skeleton (ribs/bones). Bones give structure to the body.

Wait — now we have two functions for skeleton? That’s okay if the worksheet allows reuse, but let’s check all first.

Actually, looking again — maybe “protects” and “gives support” both go to skeleton. But let’s see if any other organ fits better.

No — only skeleton does both. So perhaps the worksheet expects us to assign each function to an organ even if some organs are reused? Or maybe I miscounted.

Wait — there are 10 functions and only 7 images. So some organs must be used more than once.

But let’s look carefully:

Images from top to bottom:
1. Brain
2. Esophagus / throat area (with shoulders)
3. Ribs / skeleton
4. Heart
5. Lungs
6. Stomach

That’s 6 organs? Wait — actually, counting the images on the right:

Top to bottom:
- Brain → 1
- Throat/esophagus with collarbones → 2
- Rib cage → 3
- Heart → 4
- Lungs → 5
- Stomach → 6

Only 6 organs? But 10 functions. Hmm.

Wait — maybe the “throat/esophagus” image represents the digestive tract entry, and “stomach” is separate. Still, we need to assign each function to one of these.

Perhaps some functions refer to systems, not single organs? But the instruction says “each organ”, so probably each function maps to one of the pictured organs.

Let me reassign logically:

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Function 1: Protects other body parts → Ribs/Skeleton (protects heart, lungs)

Function 2: Receives food after it has been swallowed → Esophagus (the tube that carries food to stomach)

Function 3: Gives your body support and shape → Skeleton/Ribs (again — same organ)

But maybe the worksheet intends for us to use each organ only once? Then we have a problem.

Wait — perhaps “gives support and shape” could also relate to muscles? But no muscle image is shown. Only ribs/skeleton.

Alternatively, maybe “protects” is skin? But no skin image.

Looking back — the second image shows upper torso with esophagus AND shoulder bones/clavicle — maybe that includes part of skeletal system too? But still, ribs are clearly labeled as separate.

I think we have to accept that some organs will be used twice.

But let’s try to map uniquely where possible.

Another approach: Let’s list what each organ does:

- Brain: control center, receives info from senses
- Esophagus: receives food after swallowing
- Skeleton (ribs): protects organs, gives support/shape
- Heart: pumps blood
- Lungs: take air in, provide oxygen
- Stomach: breaks down food with juices

Now match:

1. Protects other body parts → Skeleton
2. Receives food after swallowed → Esophagus
3. Gives support and shape → Skeleton (again)
4. Provides body with oxygen → Lungs
5. Receives information from senses → Brain
6. Takes air into the body → Lungs (again)
7. Breaks down food with digestive juices → Stomach
8. Pumps blood to all parts → Heart
9. Control center of body → Brain (again)
10. Makes other body parts move → ???

Uh oh — #10: “Makes other body parts move” — that’s muscles! But no muscle image is shown.

Wait — maybe the second image (throat/shoulders) includes muscles? It shows red tissue around the esophagus — possibly representing muscles?

In many diagrams, the esophagus is surrounded by muscle layers that help push food down. Also, skeletal muscles attach to bones to make movement.

But the image labeled as “receives food after swallowed” is likely just the esophagus pathway.

Alternatively, perhaps “makes other body parts move” refers to the brain sending signals? But that’s indirect.

Or maybe the heart makes blood move? But that’s pumping, already covered.

This is tricky.

Wait — let’s look at standard elementary science:

Typically:

- Brain: control center, receives sensory info
- Heart: pumps blood
- Lungs: breathe in/out, get oxygen
- Stomach: digests food
- Skeleton: support, protection
- Muscles: movement — but not pictured

Since muscles aren’t pictured, maybe the worksheet expects us to use “brain” for making body parts move? Because brain sends signals to muscles.

But that’s stretching.

Alternatively, perhaps the second image (which shows upper body with esophagus and surrounding tissue) is meant to represent “muscles” as well? In some simplified diagrams, the red areas indicate muscle.

Looking at the second image: it shows a frontal view of upper chest with a white tube (esophagus) and pink/red tissue around it — which could represent muscles of the throat/chest.

So maybe:

Image 2 = Esophagus + surrounding muscles?

Then:

Function 10: Makes other body parts move → could be assigned to that image if we interpret the red tissue as muscles.

But the label for image 2 is probably “esophagus” since function 2 is “receives food after swallowed”.

Hmm.

Perhaps the intended mapping is:

Let’s assign each function to the best-fit organ, even if repeated.

Final logical matching:

1. Protects other body parts → Skeleton (ribs)
2. Receives food after swallowed → Esophagus
3. Gives support and shape → Skeleton (ribs)
4. Provides oxygen → Lungs
5. Receives info from senses → Brain
6. Takes air into body → Lungs
7. Breaks down food with juices → Stomach
8. Pumps blood → Heart
9. Control center → Brain
10. Makes body parts move → Muscles — but not pictured. Closest might be Brain (since it controls movement), or perhaps the esophagus/muscle image if we assume it includes muscles.

Given that, and since brain already has two functions (#5 and #9), maybe #10 also goes to brain? But that’s three for brain.

Alternatively, in some curricula, they say “muscles make you move”, and if no muscle image, perhaps they expect students to realize it’s missing — but that can’t be.

Wait — let’s count the images again from the original description:

User said: "right side has illustrations" — and listed:

- brain
- then a figure showing upper body with esophagus (probably)
- rib cage
- heart
- lungs
- stomach

That’s 6 images.

But 10 functions.

Unless... perhaps the “upper body with esophagus” is meant to represent TWO things: the esophagus AND the muscles around it? Unlikely.

Another idea: Maybe “makes other body parts move” refers to the heart moving blood? But that’s already #8.

Or lungs moving air? No.

I recall that in some basic worksheets, they pair:

- Brain: control, senses
- Heart: pump
- Lungs: breathe
- Stomach: digest
- Bones: support/protection
- Muscles: move — but if no muscle image, perhaps they omitted it, or perhaps the second image includes muscles.

Looking at the second image description: “a figure showing upper body with esophagus” — in many such diagrams, the red color indicates muscle tissue. For example, the pharynx and esophagus have muscular walls.

So perhaps image 2 represents both the esophagus (for function 2) and muscles (for function 10).

But we can't assign one image to two functions unless specified.

The instruction is: “Identify the function/s of each organ.” — implying each organ may have multiple functions, but here it's listed as 10 separate functions to match to organs.

Perhaps the expected answer is to write the organ name next to each number.

And since there are only 6 organs, some will be used multiple times.

Let’s do that:

Organ list with their typical functions:

- Brain:
- Receives information from senses (#5)
- Is the control center (#9)
- Makes other body parts move? Indirectly yes, via nerves — so maybe #10

- Esophagus:
- Receives food after swallowed (#2)

- Skeleton (ribs):
- Protects other body parts (#1)
- Gives support and shape (#3)

- Heart:
- Pumps blood (#8)

- Lungs:
- Provides oxygen (#4)
- Takes air into body (#6)

- Stomach:
- Breaks down food with juices (#7)

Then #10: Makes other body parts move — if we allow brain to cover it, then brain has three functions.

If not, then perhaps the worksheet has a mistake, or we missed an organ.

Another possibility: The second image (upper body with esophagus) might be intended to represent "muscles" for movement, and the esophagus function is covered elsewhere? But function 2 specifically says "receives food after swallowed", which is definitely esophagus.

Perhaps in this context, "makes other body parts move" is attributed to the skeletal system because bones leverage with muscles? But still, muscles are the actuators.

I think for educational purposes at this level, they might accept:

#10 → Brain (because brain tells muscles to move)

Or perhaps they consider the heart as making blood move, but that's redundant with #8.

Let’s search for standard answers for such worksheets.

Upon recalling common elementary science:

Typical matching:

- Brain: control center, receives senses
- Heart: pumps blood
- Lungs: breathing, oxygen
- Stomach: digestion
- Bones: support, protection
- Muscles: movement

Since muscles aren't pictured, and the only remaining function is #10, and brain is already used for #5 and #9, perhaps the intended answer for #10 is "muscles", but since not pictured, maybe it's an error.

But wait — the user provided the image, and in the image, is there a muscle representation?

From the initial description: the second image is "a figure showing upper body with esophagus" — and in many such cliparts, the red areas are muscles.

For example, the esophagus is a muscular tube, and the surrounding tissue might be depicted as muscle.

So perhaps image 2 is meant to be "esophagus and associated muscles", so it can serve for both #2 and #10.

But typically, in matching exercises, each item is matched to one organ, and organs can be reused.

So let's finalize with:

1. Skeleton
2. Esophagus
3. Skeleton
4. Lungs
5. Brain
6. Lungs
7. Stomach
8. Heart
9. Brain
10. Brain (assuming brain controls movement)

Or for #10, if we want to avoid overusing brain, perhaps "muscles" but since not pictured, maybe the worksheet expects "skeleton" because bones enable movement with muscles? But that's weak.

Another thought: In some contexts, "makes other body parts move" could refer to the heart moving blood, but that's already #8.

I think the most reasonable assignment is:

- #1: Skeleton
- #2: Esophagus
- #3: Skeleton
- #4: Lungs
- #5: Brain
- #6: Lungs
- #7: Stomach
- #8: Heart
- #9: Brain
- #10: Brain (as the controller of voluntary movement)

Some sources do attribute "movement" to the nervous system/brain in simplified models.

To confirm, let's think about what a student would learn:

- Your brain tells your muscles to move, so indirectly, brain makes body parts move.

Yes, that's acceptable for grade school level.

So final mapping:

1. Skeleton
2. Esophagus
3. Skeleton
4. Lungs
5. Brain
6. Lungs
7. Stomach
8. Heart
9. Brain
10. Brain

But let's write the organ names as per the images:

The images are:

- Brain → "Brain"
- Upper body with esophagus → let's call it "Esophagus" (though it includes more, the primary function shown is food passage)
- Rib cage → "Skeleton" or "Bones"
- Heart → "Heart"
- Lungs → "Lungs"
- Stomach → "Stomach"

For consistency, we'll use:

- Brain
- Esophagus
- Skeleton
- Heart
- Lungs
- Stomach

So:

1. Skeleton
2. Esophagus
3. Skeleton
4. Lungs
5. Brain
6. Lungs
7. Stomach
8. Heart
9. Brain
10. Brain

Yes.

Now, to present the answer clearly.

Final Answer:
1. Skeleton
2. Esophagus
3. Skeleton
4. Lungs
5. Brain
6. Lungs
7. Stomach
8. Heart
9. Brain
10. Brain