Physiology Assignment
Physiology Assignment
After searching for a couple of days and still being unsure of what I was going to write about I turned and was watching my fish in my fish tank and realized that was what I would do it on. Then I realized that I spend many hour throughout the week watching my fish swim around, it is almost therapeutic. I found that the anatomy and physiology of a fish is very unique so that they can exist in the different underwater environments. In this paper we will cover their circulatory system, how fish sense their environment, and how they swim.
The circulatory system of a fish is just like a humans in being closed, however the way the fishes blood flow is much simpler than ours. The blood travels from the heart, to the gills, through the body of the fish and back again. Although gills act thee same as human lungs the way the oxygen is different. The gills of the fish take in dissolved oxygen from the water.
Unlike a human a fish senses their environment, some fish smell the environment they are in through what are called nares. Fish can also sense if there are electrical fields as well as their environment by using a structure called a lateral line.
Fish also have what is called a swim bladder. The swim bladder inflates and deflates to help get a neutral buoyancy when they are in different depths of water. Not all fish have this swim bladder in fact if you look at your tank and you see the bottom feeders that always seem to stay down there, they do not have the swim bladder. The swim bladder also helps with making sound, wither they are calling a mate or warning. To help them get around their environment they use their fins.
After searching for a couple of days and still being unsure of what I was going to write about I turned and was watching my fish in my fish tank and realized that was what I would do it on. Then I realized that I spend many hour throughout the week watching my fish swim around, it is almost therapeutic. I found that the
After searching for a couple of days and still being unsure of what I was going to write about I turned and was watching my fish in my fish tank and realized that was what I would do it on. Then I realized that I spend many hour throughout the week watching my fish swim around, it is almost therapeutic. I found that the anatomy and physiology of a fish is very unique so that they can exist in the different underwater environments. In this paper we will cover their circulatory system, how fish sense their environment, and how they swim.
The circulatory system of a fish is just like a humans in being closed, however the way the fishes blood flow is much simpler than ours. The blood travels from the heart, to the gills, through the body of the fish and back again. Although gills act thee same as human lungs the way the oxygen is different. The gills of the fish take in dissolved oxygen from the water.
Unlike a human a fish senses their environment, some fish smell the environment they are in through what are called nares. Fish can also sense if there are electrical fields as well as their environment by using a structure called a lateral line.
Fish also have what is called a swim bladder. The swim bladder inflates and deflates to help get a neutral buoyancy when they are in different depths of water. Not all fish have this swim bladder in fact if you look at your tank and you see the bottom feeders that always seem to stay down there, they do not have the swim bladder. The swim bladder also helps with making sound, wither they are calling a mate or warning. To help them get around their environment they use their fins.
After searching for a couple of days and still being unsure of what I was going to write about I turned and was watching my fish in my fish tank and realized that was what I would do it on. Then I realized that I spend many hour throughout the week watching my fish swim around, it is almost therapeutic. I found that the
References: Helfman et al. 2009. The diversity of fishes: Biology, evolution and ecology. Wiley-Blackwell, London. 736pp.