Dissection pictures

Photos from Bev's dissection workshop - Richmond, February 2012

Salmon Dissection pictures 2012

Thaw 24h at room temperature in the bag	Show respect for the fish that died for your learning
Wipe clean	Touch and observe
Prepare plates for dissected parts	Review external characteristics
Identify gills	Accessing the gills
	Cut along dotted line and around the C-curve
Cut through bone at the top	Cut away from the skin
Remove gills	Feathery touch
The gills	Gently slice upward from the vent
Internal anatomy becoming external	First peek inside
Internal anatomy intact	Male or Female?
Removing the egg sacs (pinch and pull)	Approximately 2 500 eggs
It's not caviar...	Connections with human anatomy
Identifying the liver	Probing the gall bladder underneath the liver
Gently cut membranes to remove liver	The liver
Gill and liver	The mouth - start of the digestive system
Insert spoon handle down mouth to find the stomach	The stomach
The pyloric caeca	Separating the stomach
Detaching intestines at the vent	Squeezing out fish poo - how interesting!
Removing stomach by the mouth	The spleen
The digestive system	Diagram from the teaching resource
Looking for the heart near the gills	Heart with the ventral aorta protruding
Inflating a punctured swim bladder	Partially inflated swim bladder
Separating the swim bladder from the body	Pinch and pull away swim bladder
Fully removed swim bladder	Spread swim bladder flat
Make a clean cut at VENT END of swim bladder	Insert straw into cut end of swim bladder
Inflating swim bladder	Remember to blow not suck!
Looking for the puncture	If punctured, twist and tie below the hole
Twist tying the swim bladder	Demonstrating buoyancy
Buoyant swim bladder	Kidney : cut along the side through the bones
Lifting out the kidney	Displaying the kidney
Wipe clean to show the skeletal system	Flexible ribs... why?
Displaying the empty body	Why don't fish walk?
How big is a fish eye in comparison to ours?	Reach under the gill for eye socket
Presto!	Eye socket
What's different about a fish eye?	Size comparison
How big is the brain compared to the eye?	First, remove the head
Stand the head upright	Hold the nose and slice thinly at angle
Making a second slice	Making a third slice
The third slice reveals the brain	Gently probe with knife
Carefully scrape it out	Brain cavity
Cartilage from head slice	Brain vs eye
Comparing similarities and differences between fish & humans	Bev displays the finished dissection trays