A(n)__________ Protects the Internal Organs of Ray-Finned Fishes

question 113

Multiple Choice

A(n) __________ protects the internal organs of ray-finned fishes.

• A) internal bony skeleton
• B) exoskeleton made of chitin
• C) notochord
• D) internal cartilage skeleton
• E) exoskeleton made of cartilage

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Definitions:

Ischialgia

Pain along the sciatic nerve usually caused by pressure or damage to the nerve, commonly referred to as sciatica.

Lumbodynia

Pain located in the lumbar region or lower back.

Arthralgia

Pain in a joint, often related to arthritis or other joint conditions.

Ischial

Pertaining to the ischium, which is part of the hip bone.