fish parts (internal)

Question 1

heart

Answer 1

this organ pumps blood throughout the body delivering oxygen and digested nutrients to the cells of various organs.

it transports waste products from the cells to the kidneys and liver for elimination.

Question 2

liver

Answer 2

produces bile a solution which emulsifies or breaks down fast in the intestine

Question 3

pyloric caeca

Answer 3

is thought that through the secretion of enzymes it assists in breaking down the food further and absorbs needed nutrients (this organ is still not understood well)

Question 4

gonads

Answer 4

Gonads are the sex organs. Males have paired testes that produce sperm, and females have paired ovaries that produce eggs. In most cases, fertilization of the eggs is performed externally, called spawning

Question 5

swim bladder

Answer 5

helps to control the fish’s buoyancy.

There are two types of swim bladders, the physostomous and physoclistous.

physostomous swim bladder are usually found in shallow water,

physoclistous swim bladder is completely closed off from the swim bladder. These fish are able to control gas exchange or the amount of gas in their swim bladder through the capillaries that are found where the membrane of the swim bladder is very thin.

Question 6

stomach

Answer 6

is where food is digested and nutrients absorbed.

By examining stomach contents, one can leam a great deal about fish feeding habits -> this can help with baiting

Question 7

kidneys

Answer 7

Kidneys are organs that filter liquid waste from the blood.

regulating water and salt concentrations within the fish’s body.

Question 8

circulatory system

Answer 8

system that delivers blood and oxygen to the body via the heart

Question 9

digestive system

Answer 9

breaks down and processes proteins carbohydrates and fats

Question 10

gills

Answer 10

organ used to get oxygen from the water and get rid of co2

Question 11

gill rakers

Answer 11

filter feed tiny prey along the front edge of the gill arch

Question 12

nervous system

Answer 12

organs recieving and interpreting stimuli for nares eyes lateral line muscels and other tissues

Question 13

reproductive system

Answer 13

organs and tissues involved in reproduction inculding eggs sperm and gonads

Question 14

respiratory system

Answer 14

organs and tissues involved in the oxygen and co2 gas exchange including the gills gill rakers and gill filaments

Question 15

urinary system

Answer 15

the kidneys remove nitrogen (ammonia) from the blood and regulate water balance in the blood and tissues