Questions and Answers
What is the function of the liver in sharks?
What are gill rakers?
Structures that prevent large food particles from entering the gills.
What shape is the stomach of a shark?
'J' shaped.
What is rugae in the context of shark anatomy?
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What is the function of the pyloric sphincter?
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What does the esophagus do?
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What is the duodenum?
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What is the purpose of the spiral valve intestine?
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What does the spleen do?
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What is the function of the gall bladder?
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What is the cloaca?
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What role does the pancreas play?
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What do the kidneys do in sharks?
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What is the function of the rectal gland?
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What is the advantage of a cartilage skeleton in sharks?
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What does the ovary produce?
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What do testes produce?
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What does the brain control in sharks?
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What is the pharynx in shark anatomy?
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What is the structure of the heart in sharks?
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What is the function of the dorsal aorta?
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Study Notes
Shark Internal Anatomy
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Liver: Large organ that stores oils and fats, aiding in buoyancy and energy storage.
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Gill Rakers: Structures that filter out large food particles, protecting the gills.
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Stomach: "J" shaped organ responsible for digestion processes.
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Rugae: Internal folds within the stomach allowing for expansion during digestion.
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Pyloric Sphincter: Valve regulating the passage of food from the stomach to the intestine.
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Esophagus: Tube that connects the throat to the stomach, transporting food.
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Duodenum: "U" shaped section of the stomach that receives bile from the gallbladder for digestion.
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Spiral Valve Intestine: Coiled section of the intestine that enhances surface area for nutrient absorption.
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Spleen: Triangular organ that produces, breaks down, and stores red blood cells.
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Gall Bladder: Storage for bile, aiding in the digestion of fats.
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Cloaca: Common chamber for the digestive, urinary, and reproductive tracts.
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Pancreas: Organ that produces digestive enzymes essential for breaking down food.
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Kidneys: Long structures that filter salts from urine, helping maintain saline levels in the shark's body.
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Rectal Gland: Finger-shaped gland responsible for excreting excess salt from the blood.
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Cartilage Skeleton: Framework of strong yet lightweight cartilage, promoting agility and buoyancy as sharks lack a swim bladder.
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Ovary: Reproductive organ that produces eggs.
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Testes: Male reproductive organ that generates sperm.
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Brain: Central control unit for bodily functions, including sight, smell, and muscle coordination.
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Pharynx: The throat of the shark where the gills are located, opening to the pharynx.
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Heart: Two-chambered organ that pumps blood to the gills for oxygenation.
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Dorsal Aorta: Major artery responsible for transporting oxygenated blood throughout the shark's body.
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Description
Explore the fascinating world of shark anatomy with these flashcards focused on internal organs. Learn about key structures such as the liver, gill rakers, stomach, and rugae, and understand their functions in helping sharks thrive in their aquatic environment.