fish

Question 1

Vertebral column

Answer 1

another term for spinal column

Question 2

Neural crest

Answer 2

a temporary group of cells unique to vertebrates that arise from the embryonic ectoderm cell layer, and in turn give rise to a diverse cell lineage—including melanocytes, craniofacial cartilage and bone, smooth muscle, peripheral and enteric neurons and glia.

Question 3

fin

Answer 3

a flattened appendage on various parts of the body of many aquatic vertebrates and some invertebrates, including fish and cetaceans, used for propelling, steering, and balancing

Question 4

scale

Answer 4

each of the small, thin horny or bony plates protecting the skin of fish and reptiles, typically overlapping one another.

Question 5

Operculum

Answer 5

a structure that closes or covers an aperture, in particular.

Question 6

Atrium

Answer 6

each of the two upper cavities of the heart from which blood is passed to the ventricles. The right atrium receives deoxygenated blood from the veins of the body; the left atrium receives oxygenated blood from the pulmonary vein.

Question 7

Ventricle

Answer 7

a hollow part or cavity in an organ, in particular.

Question 8

Nephron

Answer 8

each of the functional units in the kidney, consisting of a glomerulus and its associated tubule, through which the glomerular filtrate passes before emerging as urine.

Question 9

Lateral line

Answer 9

a visible line along the side of a fish consisting of a series of sense organs that detect pressure and vibration.

Question 10

Spawning

Answer 10

release or deposit eggs.

Question 11

Swim bladder

Answer 11

a gas-filled sac present in the body of many bony fishes, used to maintain and control buoyancy.