As the miniaturized Planet Express ship is traveling down Fry's ear canal, a long shot shows Fry twisting his finger back and forth. Inside the ear canal and at the same time, Fry's finger is being inserted with no rotational motion.
At the truck stop Leela scrapes a Voyager satellite off of the windshield of the ship. Voyager 1&2, launched in 1977, are currently the furthest manmade objects from Earth.
In the scene where Leela blows mini Leela into Fry's ear her aim is perfect especially if you take into consideration the distance she was at.
Opening theme promotion: IF NOT ENTERTAINING, WRITE YOUR CONGRESSMAN
The scene inside Fry's body where Zoidberg says "I've heard of that. Who says I haven't?" The gun Zoidberg is holding switches hands between cuts, then switches back again.
Leela's apartment number is shown as 1I, a reference to her having only one eye.
Before the ship pulls into the station, a blue road sign reads Square-Root (symbol) 66.
Leela's apartment building has round windows that look like cyclops eyes.
LOOK HARD: In Greasy Sue's Greasy Truck Stop, you see 3 fuel-pumps: one with regular matter, one with dark matter and one with 'wassa matter' (What's the matter).
Inside Fry's stomach, a 1982 penny is visible.
During the scene where Leela goes inside Fry's body to stop everyone from killing the parasites, Fry orders more coffee and then rubs his stomach, which is fat again.
The size of the drones are inconsistent. If Zoidberg's drone is small enough to ride a sperm cell, how could they be seen without a microscope. Also, Leela blows her own drone through a straw and Fry holds his drone when he drops it down his underpants.
The chickens in the truck spaceship are just wearing glass helmets. Where do chickens get their air?
At the beginning of Act II, the hovercar that flies over the Planet Express has the body of a 1955 Chevrolet Bel Air coupe.
Zoidberg rides in on a giant sperm. If you remember, Fry was made sterile by the Z-Ray back in "Fry & The Slurm Factory." To clarify; the worms have repaired the other parts of his body, so they must have made their way down there.
While the camera goes through Fry, you see Hermes eating popcorn out of a Jai Alai racket. A scene was deleted from the episode where Hermes said that because Fry was eating silverware, they would have to start eating food with other items. If you look closely, the parasites' city inside Fry is made of silverware.
When Leela's drone is destroying the other drones, she cuts off the Zoidberg drone's head, but then his head reappears on his body and she cuts it off again.
In the beginning at Greasy Sue's Greasy Truck Stop, the dip-stick to check the oil-level of the Planet Express ship is too long to fit at the side of the stairs, which is where it is pulled out by Leela.
The crew is wearing the special suits to control the mini-drones. Eg, if Bender moves his arm whilst wearing the suit, the mini-Bender drone will also move his arm. When the mini-drones are on Farnsworth's finger, why don't they fall off, seeing as the Farnsworth drone is moving his arms around - and presumably, the real Farnsworth is as well?
When Fry and Leela enter her apartment, the living room is completely white. But afterwards, the room is yellow.
In the wide shot of Leela cleaning off the ship's window, you see the traffic going by in the background. If you look closely, you'll see near the end the traffic fades out and changes into different cars. The 3-D graphics are on a cycle.
Sal: Yo sexy mama, let's get busy and freaky, in that order.
Fry: Hey jumbo, how would you like it if Leela said you were sexy and she wanted to make love with you?
Sal: Eh.. I've gots five minutes. She looks pretty good for a truckstop chick.
Fry: You take that back! She does not look good for truckstop chick.
Sal: Yeah, you're right. She don'ts got enough meat for a guy like me.
Fry: She does too. She's loaded with meat. She's got more meat than a cow!
Bender: Sorry you struck out, sausage link. If it's any consolation, my life is great! Babes! Bucks! I got it all!
Fry: Well, at least I learned Leela's a lost cause. I give up.
Bender: There you go! Goodnight. I gotta get up early to go parasailing with movie stars!
Fry: I got rid of the worms.
Leela: What? Why would you do that?
Fry: Leela, I had worms. I needed to know who you loved. Me or them.
Leela: Well... which of you wrote me that sonnet?
Fry: I did... I think. It was probably about 50/50. But that's how I really felt about you, I swear!
Leela: I don't know.
Fry: Please. Give me a chance to be romantic on my own. I've got a baggy of massage oil, and I'm gonna give you my super back rub, just like I used to give Amy when I was going out with her, and she always seemed- (Leela stares angrily at him) Uh-oh!
Leela: Fry? I missed you. Did you find out what you needed to find out?
Fry: I'm about to. Leela, let me play for you one for time.
Leela: You don't have to do that. I'm still seduced from before.
Fry: I was just working my way towards the medulla oblongata, control centre of the heart and lungs. And if I kill myself, you die with me.
Worm Guard: Wait a minute, man!
Fry: I hope Satan has a nice colon, 'cause that's where you're gonna be living!
Worm Mayor: You've damaged your brain, Universe, but no more than a week of binge drinking or five minutes on a cell phone.
Fry: Everyone out of my body or the brain gets it!
Worm Mayor: He's bluffing! No creature would willingly make an idiot out of itself.
Fry: Obviously you've never been in love!
Fry: Well, a wonderful girl loves me. But I need to know if it's really me she loves, or just what you worms have made of me. That's why, with all due respect, I'm asking you to leave.
Worm Mayor: Listen, you: I was born here, I raised a cloud of children here, my ancestors came over here on the sandwich.
Fry: Your Excellency, have you ever been in love?
Worm Mayor: No. I thought I was once but then I remember our species reproduces with a cloud of spores.
Worm Mayor: I am the Lord Mayor of Cologne.
Fry: You mean "colon"?
Leela: A holophonor? Only a few people in the whole universe can play that, and they're not very good at it.
Leela: I'm thinking of having a window installed.
Fry: I think the view's perfect already!
Leela: Oh, that's the corniest thing I've ever heard! Let me show you the bedroom.
Fry: Apartment 1I. The old me would have made a joke about that!
Farnsworth: Leela, you ignorant dope! Now the worms will be in Fry forever.
Leela: So? Did you ever stop to think that Fry is better off with worms?
Farnsworth: Oh, that's stupid!
Farnsworth: Leela, you're just in time to help. If we don't get rid of the worms now, they'll burrow so deep into the bowel that not even Hermes' famous jerk prunes could dislodge them!
Hermes: I call it "Caribbean Drain-o"!
Farnsworth: There it is! The pelvic splanchnic ganglion. Tickle it and get ready for the ride of your lives!
Fry: Leela... I love you.
Leela: You do?
Fry: Yes. But it's only recently that I've been able to articulate my thoughts. I love you, Leela, and I always have.
Leela: Fry, that's the sweetest, most wonderful- Wait! Recently? Like since you ate that toilet sandwich?
Fry: Yeah! I don't know why but my life really turned around that day.
Leela: What is it? Is it about Bender?
Fry: No, it's about you and me.
Leela: And Bender?
Fry: Bender's not involved.
Leela: I had a great time today. The flowers, the puddle, the way you hurt that guy. But can I aks you something?
Leela: Why did you do all that stuff?
Fry: Leela, there's something I've wanted to tell you for a long time but every time I try I get nervous and my mouth feels like it's stuffed with peanut butter, even when it's not.
Bender: Alright, let's mush some worms!
Farnsworth: If we can stimulate that nerve, the bowel will convulse, expelling the entire worm society.
Hermes: But what about the worms in the other parts of his body?
Farnsworth: Listen, this is gonna be one hell of a bowel movement. Afterwards he'll be lucky if he has any bones left!
Farnsworth: There it is! The stately capitol of Fry's bowel. A heavily-guarded fortress surrounding the pelvic splanchnic ganglion.
Zoidberg: I've heard of that! Who said I haven't?
Farnsworth: Ah, the stomach: Scenic gateway to the bowel.
Sal: Sorrys, ma'am. I've learnsed a lesson about not ogling cans that I won't soons forgets.
Leela: Fry, no! He's bulging with what could be muscles.
Amy: Look! They're jazz-ercising Fry's muscles!
Hermes: He'll be as strong and flexible as Gumby and Hercules combined!
Zoidberg: Gumbercules? I love that guy!
Bender: Abandon ship!
Farnsworth: No! Set course for that cholesterol-encrusted valve.
Zoidberg: It's good cholesterol but it spreads like bad cholesterol!
Bender: Where are we? The ass?
Farnsworth: We're in the heart. Better known as "The Love Muscle".
Zoidberg: Where the food is digested.
Zoidberg: Quick! We can escape through that nasal capillary into the sinus.
Hermes: Strange. Usually you don't know anything about human anatomy.
Zoidberg: I learned it from a decongestant commercial. "Soothing action, action, action, action..."
Farnsworth: Let's just pray nothing stimulates the delicate smell receptors. Nobody make a smell.
Farnsworth: Brace yourselves, everyone. We're entering the interior of Fry's nose.
Bender: We're at finger alert five.
Fry: Ah, the scent of a rose. Curious how an aromatic chain of hydrocarbons can evoke our deepest emotions. For you.
Leela: That's such a beautiful thought, Fry. And what's more amazing, you expressed it without spewing crumbs at me.
Hermes: What are those worms doing to Fry's brain?
Farnsworth: They're giving it a complete tune-up. A cursory glance would suggest they've doubled his thinking power.
Hermes: My God! Soon he'll be smarter than Cher!
Hermes: We gotta get someplace where he won't stick his finger!
Bender: It's hopeless! Abandon ship!
Fry: What about what?
Leela: Uh... what if we go for a walk, possibly, because it's such a lovely day, perhaps.
Farnsworth(whispering): Sh! Be very quiet. We're in the ear.
Amy(whispering): OK, Professor.
Farnsworth-Droid: Leela, your role is to distract Fry so he doesn't notice what we're up to.
Leela: Can do!
Amy-Droid: Leela, you should really try a facial scrub, for your pores.
Farnsworth: No! Fry can't know anything about the mission. If he finds out, the worms will try to defend themselves. They know everything he knows.
Bender: They know how to make ice cream soup?
Farnsworth: Here's the plan: We'll enter the ear, drip down the back of the throat and make for the bowel. There, we'll irritate the pelvic splanchnic ganglion and cause an intestinal spasm, expelling, among other things, the parasites.
Bender: I'll tell Fry to wash out, among other things, his ear.
Farnsworth: Anyhoo, your net suits will let you experience Fry's worm-infested bowels as if you were actually wriggling through them.
Zoidberg: There's no part of that sentence I didn't like.
Bender: Yo, old guy, why do we have to use those tiny micro-droids? Can't you just shrink us?
Farnsworth: Oh, my, no. That would require extremely tiny atoms, and have you priced those lately? I'm not made of money! Leave me alone!
Farnsworth: In each gastro-survival kit, you'll find a rain slicker, a disposable fun camera, and something to protect you against bacteria - a harpoon!
Leela: So the eggs in that egg salad sandwich were-
Farnsworth: Correct! Worm eggs! And the mayonnaise was probably none too fresh either.
Amy: Worms? Ew! Puke-a-tronic!
Farnsworth: Watch for any subtle irregularity in Fry's bowel.
Amy: It's gorgeous. That place used to be a big dump.
Zoidberg: Hmm. We'll need to have a look inside you with this camera.
Fry opens his mouth
Zoidberg: Guess again.
Farnsworth: Hmm. Zoidberg will have to examine your gastrointestinal tract. Come, everyone. Give Fry some privacy... If you can't see well enough through the two-way mirror, there'll be a close-up on this video screen.
Farnsworth: Fry, did you eat anything unusual recently?
Leela: What about that bathroom egg salad from the truck stop?
Fry: I've had better.
Zoidberg: Oh, the hypochondriac's back! So what is it this time?
Fry: Well, my lead pipe hurts a little.
Zoidberg: That's normal. Next patient.
Scruffy: Scruffy's gonna die the way he lived. (flips through magazine)
Bender: Who are you?
Scruffy: Scruffy. The janitor.
Bender: Well why aren't you fixing the boiler?
Scruffy: Schedule conflict.
Fry: I can't please Leela no matter what I do. I just want her to like me.
Bender: Well there's always hope. Ha ha ha ha ha!
Sal: Stands back! I'm gonna puts my moves on her. Whoas!
Fry: That jerk! No one hoots at my captain unless they're prepared to take it to the next level!
Leela: Fry, please. That's sweet but I'd rather not even dignify them with an ass-whooping!
Bender: What's that black cracker?
Fry eats it
Fry: A tomato.
Leela: Hmm, I'd better check the fluid levels. We're OK on Coke syrup.
Parasite King: Ever wonder what makes special sauce so special? (points to himself) YO!
Fry: Of all the parasites I've had over the years, these worms are among the.. hell, they are the best!
Leela: You're not going to eat a sandwich from a truck stop men's room, are you?
Fry: Eh. What's the worst thing that could happen? (takes a bite) Ugh. It's like a party in my mouth and everyone is throwing up.
Leela: (spots Sal) Oh no, it's that jerk from the truck stop. Quick, let's cross the street and try to blend in with that crowd of pimps.
Leela: I don't have words to say how wonderful you are, Fry. I haven't felt this happy since double soup Tuesday at the orphanarium.
Fry: When I'm with you, every day seems like double soup Tuesday.
Leela: Oh Fry, I love what you've become.
Alien code: In the season 3 DVD, there is a section where you can learn how to draw Fry. The background is from the truck-stop bathroom. On the wall we see Alien Code #1. When translated it says "For a moderately good time call 555-1972!"
Alien code: When Fry walks into the truck-stop bathroom, there is a ton of Alien Code #1 written on the wall. While most of it is just single letters, there is one phrase you can read on the calendar. It says: "For A Good Time Call..."
Alien code: In the opening sequence of convoy trucks going by, one of the trucks has Alien Code #1 written on it. When translated it says: "Human Milk."
Alien code: Alien Code #1 makes another appearance when Fry and Leela are walking down the block and run into Sal from the truck-stop. It says: "Watch For Falling Humans."
For this episode, storyboard artist Rodney Clouden won an Emmy award for Outstanding Individual Achievement in Animation.
Hermes comments that Fry will be as strong as Gumby and Hercules combined. Gumby is a claymation character who first appeared in 1955. Hercules was a Greek mythological figure who possessed incredible strength.
Star Trek: The Next Generation
The running gag about Bender yelling "abandon ship!" similar to what Picard yells out several times in the episode "Cause And Effect" (in which the Enterprise is caught in a time loop and explodes several times).
X Minus One
In the "Shock Troops" episode of this classic radio series, an army of parasites (or germs, they didn't elaborate) take over a man's body for colonization.
Leela's underfurnished apartment looks like a famous and much-parodied ad for Maxell tape from the 1970s.
Dr. Who: The Invisible Enemy
A Dr. Who episode in which the Doctor and his assistant Leela are cloned, and the clones are miniaturized and injected into the Doctor to defeat invading parasites.
A movie about a group of scientists and doctors minitiuarizing themselves, placed in a minituarized sub and injected into a man's body so they can perform life-saving surgery, based on a story by Isaac Asimov.
C.W. McCall: Convoy
A 1976 one hit wonder about a group of truckers forming a convoy and going across the USA defying the speed limit and the cops. Part of a short-lived public craze for CB radios. Made into a really bad movie starring Kris Kristofferson
The Holophoner The Holophoner (Fry's instrument) is based on an instrument in the Science Fiction book "The Foundation." The Visi-Sonor, played by the Mule.
Title: Parasites Lost
This title is a reference to John Milton's work "Paradise Lost."
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