Download CRAYFISH DISSECTION

CRAYFISH DISSECTION
INTEGUMENTARY/SKELETAL
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EXOSKELETON
CARAPACE (EXOSKELETON THAT
COVERS CEPHALOTHORAX)
MOLTING
RESPIRATORY SYSTEM
RESPIRATORY SYSTEM
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PRINCIPLE OF DIFFUSION
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GOING FROM AN AREA OF HIGH
CONCENTRATION TO LOW
CONCENTRATION
CIRCULATORY SYSTEM
CIRCULATORY SYSTEM
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FUNCTION: TO CARRY OXYGEN TO
THE TISSUES AND CARRY CELLULAR
WASTE AND CARBON DIOXIDE AWAY.
OPEN CIRCULATORY SYSTEM: NO
VEINS HERE!!!!!!!!!!!!!!!!!
CIRCULATORY SYSTEM
DIGESTIVE SYSTEM
DIGESTIVE SYSTEM
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MOUTH--------ESOPHAGUS-----CARDIAC STOMACH-------PYLORIC
STOMACH---------INTESTINE---ANUS
ENZYMES PRODUCED BY DIGESTIVE
GLAND.
ABSORBED BY DIGESTIVE GLAND
DIGESTIVE SYSTEM
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TAKE STOMACH OUT AND LOOK AT
TEETH INSIDE THE CARDIAC
STOMACH.
CALLED THE GASTRIC MILL
REPRODUCTIVE SYTEM
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MALE? LOOK FOR TESTES
UNDERNEATH THE HEART.
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BE CAREFUL THEY ARE SMALL!
FEMALE? LOOK FOR OVARIES
UNDERNEATH THE HEART.
REPRODUCTIVE SYSTEM
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DO YOU HAVE A MALE OR A FEMALE?
LOOK AT BASE OF 5TH WALKING LEG
FOR MALES.
LOOK AT BASE OF 3RD WALKING LEG
FOR FEMALES.
REPRODUCTIVE SYSTEM
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MALES TRANSFER SPERM BY
SWIMMERETS TO FEMALE’S SEMINAL
RECEPTACLE.
FIND THIS ANTERIOR TO FIRST PAIR
OF SWIMMERETS.
REPRODUCTIVE SYSTEM
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FEMALES HOLD SPERM ALL WINTER.
RELEASE EGGS AND SPERM DURING
SPRING.
EXTERNAL FERTILIZATION.
REPRODUCTIVE SYSTEM
REPRODUCTIVE SYSTEM
EXCRETORY SYSTEM
EXCRETORY SYSTEM
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GETTING RID OF EXCESS WATER
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LIVE IN HYPOTONIC ENVIRONMENT
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GETTING RID OF NITROGEN WASTE
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EXITS THROUGH PORE AT BASE OF
ANTENNAE
NERVOUS SYSTEM
NERVOUS SYSTEM
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BRAIN (GANGLIA)
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NERVE CORDS ENCIRCLE ESOPHAGUS
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VENTRAL NERVE CORD
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GANGLIA CONTROL EACH SEGMENT
MUSCULAR SYSTEM
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ADDUCTOR MUSCLES TO MOVE
MANDIBLE.
MUSCLES INSIDE CHELIPED
FLEXOR/EXTENSOR MUSCLES OF
ABDOMEN
MUSCULAR SYSTEM
PARTS YOU SHOULD KNOW
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ANTERIOR
VENTRAL
CEPHALOTHORAX
CARAPACE
CHELIPED
COMPOUND EYES
ANTENNULES
POSTERIOR
DORSAL
ABDOMEN
EXOSKELETON
ROSTRUM
ANTENNAE
WALKING LEGS
PARTS YOU SHOULD KNOW
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SWIMMERETS
UROPODS
MAXILLAE
MALE/FEMALE
SEMINAL RECEPTACLE
TESTES
HEART
TELSON
MANDIBLE
MAXILLIPEDS
GILLS
NAUPLIUS
OVARIES
OSTIA
PARTS YOU SHOULD KNOW
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ARTERIES
PYLORIC STOMACH
CARDIAC STOMACH INTESTINE
DIGESTIVE GLAND GREEN GLANDS
ADDUCTOR MUSCLES
ABDOMINAL MUSCLES
VENTRAL NERVE CORD
GASTRIC MILL