1. WORM PARTS

2. This flap of tissue that overhangs the mouth opening in an earthworm is called the _______________
prostomium
The bristles located on each segment along the ventral surface of your earthworm are called _________
setae

3. B-end farthest from clitellum
Which end is the posterior end of this worm?
A B A
B-end farthest from clitellum B
The opening at end B is the __________
anus

4. Tell which body part is involved in each function in an Earthworm:
Pump blood __________________
Store sperm from other worms ____________________
Store food _________________
Make mucous for reproduction _________________
Grind food _______________
Store sperm from this worm________________________
5 aortic arches
Seminal receptacles
crop
clitellum
gizzard
Seminal vesicles

5. These small white sacs (#1) were seen along side 6 larger sacs when you opened your worm. Their function is to _____________________________
store sperm received from other worms

6. male genital pores seminal vesicles The holes labeled #4 are the
_____________________. They connect inside to the sacs called _______________ that store sperm made by this worm.
male genital pores
seminal vesicles

7. These 6 large white sacs are called __________________.
seminal vesicles

8. The ______________ system deals with what’s on the outside surface of the animal.
integumentary
The _________ stores food in the
earthworm’s digestive system.
crop

9. setae prostomium esophagus typhlosole Cerebral ganglia
Tell which body part is involved in each function in an Earthworm:
Provide traction __________________
Tissue that covers mouth _____________
Connects pharynx and crop ___________
Infolding for more surface area inside intestine ________________
Where digestive enzymes break down food __________________
Where gases are exchanged ___________
Act as the brain ______________
setae
prostomium
esophagus
typhlosole
intestine
skin
Cerebral ganglia

10. A
Structure A at the anterior end of the digestive system is the ____________.
pharynx

11. A- end closest to clitellum
Which is the
anterior end of this worm?
A B
A- end closest to clitellum B

12. The seminal vesicles (large white sacs) store sperm made by this worm store eggs made by the ovary store sperm received from other worms store food before it enters the gizzard
Store sperm made by this worm

13. Structure #1 is involved in ______________ locomotion reproduction
respiration digestion
Reproduction- Makes mucous

14. This white line (#2) that runs
along under the digestive system is the _____________________
Ventral nerve cord

15. A
Structure A which is an infolding that hangs down inside the intestine to increase surface area is the ___________________
typhlosole

16. Name a part of the nervous system in an earthworm.
Cerebral ganglia OR ventral nerve cord
The typhlosole is part of the _____________ system.
digestive

17. Structure A is called the ______________
clitellum

18. These structures which arch over the top of the
esophagus are the _______________
aortic arches
The function of these structures is to carry nerve messages transfer sperm pump blood excrete nitrogen waste
Pump blood

19. Tell which body system the part belongs to in an Earthworm:
Nephridia __________________
Seminal vesicles _______________
Crop _________________
Clitellum _________________
Aortic arches _______________
Cerebral ganglia ______________
excretory
Male reproductive
digestive
reproductive
Circulatory
Nervous

20. This black line that runs along the top of the digestive system is the ___________________
Dorsal blood vessel

21. crop gizzard A= _____________ B = _____________ A Hint:
A is squishy B is hard B A
crop
A= _____________
B = _____________
gizzard

22. intestine absorb nutrients Structure A = __________
It’s function is to ____________________
absorb nutrients grind food store food excrete nitrogen waste

23. dorsal
The ___________surface is facing you in this view of the earthworm dorsal ventral
How can you tell?
Can see clitellum on this side, it doesn’t go all the way around on ventral surface

24. gizzard The function of the ______________ is to grind up the food.
In an earthworm the function of the _____________ is to excrete nitrogen waste and regulate water.
nephridia

25. The ____________ connects the pharynx with the crop.
esophagus
receptacles
Seminal ____________ store sperm collected from other worms.

26. intestine Male genital pore nephridia cuticle testis
Tell which body part is involved in each function in an Earthworm:
Absorb nutrients __________________
Opening for sperm from this worm to exit when it trades ____________________
Excrete nitrogen waste _______________
Protective coating _________________
Pull food into digestive system__________
Produce eggs____________
Produce sperm ______________
intestine
Male genital pore
nephridia
cuticle
pharynx
ovary
testis

27. Each of these blue dividers that separate the segments inside into compartments is a ____________
Septum (pl. septa)

28. The head of a tapeworm that contains hooks and suckers for attachement is called a
__________
scolex