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A gill lice infection will have negative effects on the gills, but no other physiological processes in the fish.   Question options:   True   False   Fish suffering from a gill lice infection likely experience reduced blood oxygen levels.   Question  options:   True   False   The amount of surface area in gill filaments suggests a primary function that has to do with temperature regulation.   Question options:   True   False

A gill lice infection will have negative effects on the gills, but no other physiological processes in the fish.   Question options:   True   False   Fish suffering from a gill lice infection likely experience reduced blood oxygen levels.   Question  options:   True   False   The amount of surface area in gill filaments suggests a primary function that has to do with temperature regulation.   Question options:   True   False

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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A gill lice infection will have negative effects on the gills, but no other physiological processes in the fish.

 

Question options:

  True
  False

 

Fish suffering from a gill lice infection likely experience reduced blood oxygen levels.

 

Question  options:

  True
  False

 

The amount of surface area in gill filaments suggests a primary function that has to do with temperature regulation.

 

Question options:

  True
  False
The gill filaments are thin, finger-like structures that are covered in tiny blood vessels called capillaries. These finger-like filaments have additional feather-like structures called secondary lamellae (Figure 2, Figure 3A). Oxygen from the water diffuses across the thin walls of the capillaries and into the fish's bloodstream, while carbon dioxide from the fish's metabolism diffuses out of the bloodstream and into the water. gill arch skeleton gill filament skeleton gill arch sss branchial arterioles peper with afferent arteriole gill filaments gill lamellae blood flow efferent arteriole Figure 2. Diagram depicting the cross-sectional anatomy of a fish gill arch, with blood vessels and gill filaments, each with secondary lamellae to maximize surface area for optimal oxygen uptake during aquatic respiration.
Transcribed Image Text:The gill filaments are thin, finger-like structures that are covered in tiny blood vessels called capillaries. These finger-like filaments have additional feather-like structures called secondary lamellae (Figure 2, Figure 3A). Oxygen from the water diffuses across the thin walls of the capillaries and into the fish's bloodstream, while carbon dioxide from the fish's metabolism diffuses out of the bloodstream and into the water. gill arch skeleton gill filament skeleton gill arch sss branchial arterioles peper with afferent arteriole gill filaments gill lamellae blood flow efferent arteriole Figure 2. Diagram depicting the cross-sectional anatomy of a fish gill arch, with blood vessels and gill filaments, each with secondary lamellae to maximize surface area for optimal oxygen uptake during aquatic respiration.
Figure 2. Diagram depicting the cross-sectional anatomy of a fish gill arch, with blood vessels and gill filaments, each with secondary lamellae to maximize surface area for optimal oxygen uptake during aquatic respiration. When gill lice attach to the filaments, they obstruct the flow of water over the gills, cause inflammation and damage to this gill tissue. This inflammation caused can also lead to a build-up of mucus in the filaments and lamellae (See Figure 3B for an image of lamellae during an infection). A B Figure 3. Comparison of gill lamellae in a healthy fish (A) versus an infected fish with inflamed lamellae (B), highlighting the detrimental effects of infection on these key structures responsible for efficient gas exchange in aquatic environments.
Transcribed Image Text:Figure 2. Diagram depicting the cross-sectional anatomy of a fish gill arch, with blood vessels and gill filaments, each with secondary lamellae to maximize surface area for optimal oxygen uptake during aquatic respiration. When gill lice attach to the filaments, they obstruct the flow of water over the gills, cause inflammation and damage to this gill tissue. This inflammation caused can also lead to a build-up of mucus in the filaments and lamellae (See Figure 3B for an image of lamellae during an infection). A B Figure 3. Comparison of gill lamellae in a healthy fish (A) versus an infected fish with inflamed lamellae (B), highlighting the detrimental effects of infection on these key structures responsible for efficient gas exchange in aquatic environments.
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