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Crayfish
parts practice
Name this pincher claw
cheliped
Give a function.
Catch food, defense
Image by Riedell/Vanderwal © 2005
The arrows are pointing at the
_________________
Green glands
Image by Riedell/Vanderwal © 2005
Give a function. Excrete nitrogen waste;
osmoregulation
Give the body system.
excretory
Image by Riedell/Vanderwal © 2005
The arrows are pointing at the
maxillipeds
_________________
Give a function.
Touch, taste, manipulate food
The arrows are pointing at the
Walking legs
_______________
Name the body segment these are attached to.
thorax
Image by Riedell/Vanderwal © 2005
Image by Riedell/Vanderwal © 2005
#1
#2
Name #1 antennules
Give a function.
Sense touch, taste,
& equilibrium
Image by Riedell/Vanderwal © 2005
The arrows are pointing at the
intestine
_________________
Give a function.
Finish digestion, absorb nutrients, collect/remove
digestive waste
Name the body system. digestive
Image by Riedell/Vanderwal © 2005
This thin white line is the
Ventral nerve cord
_________________
Give the body system.
nervous
The probe is pointing at the
maxilla
_________________
Give a function.
Manipulate
food
Last pair
(bailers)
move water
over gills
http://www.flushing.k12.mi.us/srhigh/tippettl/biology/cray/index.html
Which of these crayfish is a male?
female
male
Image by Riedell/Vanderwal © 2005
Name these dark ovals
Adductor muscles
Give a body system
muscular
Image by Riedell/Vanderwal © 2005
Name this exit opening
anus
Image by Riedell/Vanderwal © 2005
Name the body system(s) that use this as an
exit. Digestive only
Name this section of the body
abdomen
TRUE or FALSE
False
Image by Riedell/Vanderwal © 2005
This is a tagma.
Image by Riedell/Vanderwal © 2005
Name this piece of exoskelton that covers the main
body in a crayfish
carapace
Name the polysaccharide that makes it “flexible”
chitin
Image by Riedell/Vanderwal © 2005
The teeth seen here inside the stomach are
Gastric mill
called the _______________
Image by Riedell/Vanderwal © 2005
#1
#2
Name #2 antenna
Give a function.
Sense touch & taste,
Image by Riedell/Vanderwal © 2005
Name this small white
spot.
Cerebral ganglia
Give a function
Acts as the brain
Name the body system
nervous
Image by Riedell/Vanderwal © 2005
Name these tail sections.
uropods
Which of these crayfish is a female?
female
male
Image by Riedell/Vanderwal © 2005
Image by Riedell/Vanderwal © 2005
#4
Name the body region
cephalothorax
Image by Riedell/Vanderwal © 2005
#4
Which of these is a tagma?
#4
or
#5
#4- made by joining head + thorax
#5
The pink arrow is pointing at the
Digestive gland
_________________
Give a function.
Make bile
Finish
digestion
Absorb
nutrients
http://www.flushing.k12.mi.us/srhigh/tippettl/biology/cray/index.html
Image by Riedell/Vanderwal © 2005
Name this tail section
telson
USE your direction
words to answer
This crayfish
is showing you its
ventral
_______________
surface.
Image by Riedell/Vanderwal © 2005
USE your direction words to answer
Image by Riedell/Vanderwal © 2005
This crayfish is showing you its
dorsal
_______________
surface.
USE your direction words to answer
Image by Riedell/Vanderwal © 2005
#15. The arrow is pointing to the
anterior
crayfish’s _______________
end.
Image by Riedell/Vanderwal © 2005
This space that surrounds the organs
coelom
is called the ____________.
Image by Riedell/Vanderwal © 2005
The piece that sticks out between the
eyes is the ______________.
rostrum
http://www.flushing.k12.mi.us/srhigh/tippettl/biology/cray/index.html
Ventral nerve cord
This thin white line = ___________________
Give the body system
nervous
http://www.flushing.k12.mi.us/srhigh/tippettl/biology/cray/index.html
Name this part gonad
Give a body system reproductive
The probe is pointing at the
mandible
_________________
Give a function.
http://www.flushing.k12.mi.us/srhigh/tippettl/biology/cray/index.html
Manipulate
food
touch
taste
http://www.flushing.k12.mi.us/srhigh/tippettl/biology/cray/index.html
Cardiac stomach
Yellow arrow = __________________
Pyloric stomach
Pink arrow = ___________________
http://www.flushing.k12.mi.us/srhigh/tippettl/biology/cray/index.html
Name these feathery appendages
swimmerets
Give a function
Transfer sperm (males), carry eggs/embryos
(females), create water currents over eggs
Image by Riedell/Vanderwal © 2005
Name it
heart
Give the function
Pump hemolymph
(blood)
The openings in the structure above are
ostia
called _____________
Give the body system. circulatory