Friday, December 9, 2011
Wednesday, November 30, 2011
Human and Adult Bee Respiratory System
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As you're sitting here reading this you are either inhaling through your nose, mouth, or both. For humans our first structure of the respiratory system is the nose or mouth, which are both visible. Air then travels down the throat, also called pharynx, then passes the larynx which is our voice-box. Next air travels through the trachea to then enter the bronchial tubes which further branch into bronchioles making up the lungs. Branching in the lungs continues down to the alveolar ducts. These spongy like structures attach to capillaries where oxygen is picked up by the blood and transported throughout the body to all tissues by the circulatory system.
As you are sitting here and breathing in and out, air travels through all these structures instantaneously, and you can see the your diaphragm, which is above your stomach, expand outward as you inhale, and return back down as you exhale. Knowledge of the human respiratory system came from the Principles of Human Anatomy 10th ed. by Gerard Tortora.(Ch. 24)
http://www.mindfiesta.com/respiration
Respiration in an adult honey bee has a completely different system than both the human and fish that I have previously described. In fact a bee's respiration system has it's own name called the tracheal system. Bees have respiratory openings where oxygen enters through spirades. These openings branch numerous times, similar to human lungs, in order for oxygen to reach all organs of the body. http://animals.nationalgeographic.com/animals/bugs/honeybee/
These openings and the continual hard work of the bee to collect honey amount to the annoying buzzing sound most humans hear.
Bee's have trachea arms that widen, opening air sacs that are large but few in number. Small branches and tubes emerge from the air sacs to transport oxygen to the tissues. Oxygenation of the tissues can be sped up by contracting the air sacs which speeds up the transport of oxygen.
As you're sitting here reading this you are either inhaling through your nose, mouth, or both. For humans our first structure of the respiratory system is the nose or mouth, which are both visible. Air then travels down the throat, also called pharynx, then passes the larynx which is our voice-box. Next air travels through the trachea to then enter the bronchial tubes which further branch into bronchioles making up the lungs. Branching in the lungs continues down to the alveolar ducts. These spongy like structures attach to capillaries where oxygen is picked up by the blood and transported throughout the body to all tissues by the circulatory system.
As you are sitting here and breathing in and out, air travels through all these structures instantaneously, and you can see the your diaphragm, which is above your stomach, expand outward as you inhale, and return back down as you exhale. Knowledge of the human respiratory system came from the Principles of Human Anatomy 10th ed. by Gerard Tortora.(Ch. 24)
http://www.mindfiesta.com/respiration
Respiration in an adult honey bee has a completely different system than both the human and fish that I have previously described. In fact a bee's respiration system has it's own name called the tracheal system. Bees have respiratory openings where oxygen enters through spirades. These openings branch numerous times, similar to human lungs, in order for oxygen to reach all organs of the body. http://animals.nationalgeographic.com/animals/bugs/honeybee/
These openings and the continual hard work of the bee to collect honey amount to the annoying buzzing sound most humans hear.
Bee's have trachea arms that widen, opening air sacs that are large but few in number. Small branches and tubes emerge from the air sacs to transport oxygen to the tissues. Oxygenation of the tissues can be sped up by contracting the air sacs which speeds up the transport of oxygen.
The Miracle of the Honeybee. The Bee’s Flawless Anatomy. Harun Yahya.
Tuesday, November 29, 2011
Fish Respiratory Structure and Function
The respiratory system of fish begins with the intake of oxygen through the gills. The gills are located on the sides of the head. Gill filaments are feathery structures that make up the gills. They provide a large surface area for gas exchange.The filaments are arranged in rows in the gill arches. Each filament contains lamellae.
Lamellae are discs that contain capillaries. Capillaries, similar in humans, are the site of exchange of oxygen into the blood stream. In fish the blood enters and leaves the gills through these small blood vessels.
Most bony fish have a special covering that protects the gills called the operculum. As water carrying dissolved oxygen enters the mouth of the fish, the animal moves it's jaw and operculum in order to pump water through the gills.
http://www.earthlife.net/fish/gills.html
As water passes over the gill filaments blood inside the capillaries picks up the dissolved oxygen. Blood flows opposite the flow of water over the filaments increasing the opportunity for absorption. At this point the circulatory system transports the oxygen to all the tissues within the fish.
Lamellae are discs that contain capillaries. Capillaries, similar in humans, are the site of exchange of oxygen into the blood stream. In fish the blood enters and leaves the gills through these small blood vessels.
http://www.earthlife.net/fish/gills.html
As water passes over the gill filaments blood inside the capillaries picks up the dissolved oxygen. Blood flows opposite the flow of water over the filaments increasing the opportunity for absorption. At this point the circulatory system transports the oxygen to all the tissues within the fish.
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