4 CIRCULATORY SYSTEM The circulatory system contains several very different components‚ including the heart‚ a hollow muscular pump that stands at the operational center of the system that pumps liquid blood throughout the body through three types of flexible tubes‚ the blood vessels (Fig. 4.1). The arteries channel blood from the heart to all parts of the body needing service. Once there‚ the blood passes through narrow arteries and enters the capillaries‚ which are the narrowest blood vessels
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Circulatory System of Frogs vs. Circulatory System of Humans The circulatory system of a human compared to that of a frog is different due to the number of chambers each contains. A frog’s heart has three chambers (two atria‚ and a single ventricle)‚ whereas a human’s has four (two atria‚ and two ventricles). The atrium of a frog receives deoxygenated blood from the blood vessels that drain the various organs of the body. The left atrium receives oxygenated blood from the lungs and skin. Both
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composed of complicated and intricate systems that work together to keep us alive and able to move and process the things we find to be simple such as breathing or blinking. There are 11 systems in our body‚ each in charge of something different and supplying support to the other. Those 11 systems are the‚ nervous‚ skeletal‚ muscular‚ circulatory‚ respiratory‚ digestive‚ endocrine‚ reproductive‚ excretory‚ integumentary and immune systems. I will address every system in the human body as well as provide
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Circulatory Systems link exchange surfaces with cells throughout the body Diffusion is too slow of an exchange system for large organisms Gastrovascular Cavities Fluid bathes both the inner and outer layers This facilitates exchange between both layers easily‚ as a sort of bridge Evolutionary Variation of Circulatory System Diffusion distance was too great of a problem Three components: Fluid Interconnecting vessels Heart Open and Closed Circulatory Systems Arthropods and most molluscs
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The circulator system of spiders * Spiders are arthropods and they have an open circulatory system. * The open circulatory system is a system in which the organs are directly bathed with nutrients and oxygen. The blood flow is not restricted as much as a closed circulatory system. * The spider’s heart is a simple heart‚ a tube surrounded by muscle with a one-way valve at each end. * It is located in the abdomen a short distance within the middle line of the dorsal body-wall‚ and
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closed circulatory system of some mollusks and all higher invertebrates and the vertebrates is a much more efficient system. Here blood is pumped through a closed system of arteries‚ veins‚ and capillaries. Capillaries surround the organs‚ making sure that all cells have an equal opportunity for nourishment and removal of their waste products. However‚ even closed circulatory systems differ as we move further up the evolutionary tree. One of the simplest types of closed circulatory systems is found
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Exercise 8: Chemical and Physical Processes of Digestion: Activity 1: Assessing Starch Digestion by Salivary Amylase Lab Report Pre-lab Quiz Results You scored 100% by answering 6 out of 6 questions correctly. 1. The substrate for amylase is You correctly answered: e. starch and carbohydrate. 2. Which of the following is true of enzymes? You correctly answered: c. Their activity can be affected by temperature and pH. 3. The reagent IKI tests for the presence of You correctly answered: a. starch.
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Name: ___________________________ Date: ________________________ Student Exploration: Circulatory System Vocabulary: artery‚ atrium‚ blood vessel‚ capillary‚ circulatory system‚ heart‚ platelet‚ pulmonary artery‚ pulmonary vein‚ red blood cell‚ urea‚ ventricle‚ vein‚ white blood cell Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. Why do you need blood? __Blood carries oxygenon and nutrients around you body.___________________________________________________
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Biology Mammals Grazing Herbivore: Herbivores digestive systems can consist of one of two types of insides‚ it can be a foregut fermenter where the Foregut Fermeters has two parts (a tubiform and a sacciform fore stomach) containing lots of microbes. The stomach is bigger than that of a hindgut fermenter considering its usually a bigger animal‚ the stomach has an extra chamber to help devour glucose from the cellulose (the herbivores diet is largely cellulose and is broken down by the microbes)
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When we exercise circulatory system‚ respiratory system and muscles are affected. Short term effects are immediate and long term refers to our adaptation to exercise. After an intense exercise we are still breathing heavily‚ that is due to our internal respiration taking in more oxygen or cellular respiration (where the cells converts the food into energy or releases the molecules of Carbon‚ Hydrogen‚ Oxygen and Nitrogen which make up our food and are stored to higher cells known as ATP or Adenosine
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