Circulatory system

Arterial system of frog Blood vessels, which carry oxygenated blood away from heart to different part of the body, are called arteries. They constitute a system called arterial system. Truncus arterious gives two branches right aortic trunk and left aortic trunk. Each aortic trunk again divides into three branches- a) Carotid arch: it divides into – Lingual artery – it supplies blood to tongue and hyoid. Common carotid – it supplies blood to buccal cavity and brain. it consists swelling at the…

1. List the functions of the cardiovascular system. What are the different types of blood vessels? Which vessels carry blood towards the heart? Which carry blood away from the heart? Where does gas exchange occur? The functions of the cardiovascular system are: pumping blood to body tissues and organs; maintaining homeostasis; and transport gases, waste, and hormones. The different types of blood vessels are: arteries, capillaries, and veins. The vessels that carry blood towards the heart are…

Respiration is a process, which conducts the circulation of air between the lungs and the external environment. Two main mechanisms involved in the respiration process is the act of inspiration and expiration. Inspiration involves the inhaling of oxygen into the lungs. Expiration involves the exhalation of carbon dioxide into the external environment. Respiration is important to human body because it is a major contributor to speech. As mentioned in the paragraph above, a variety of muscles…

Compare and contrast Structure: The main objective of the cardiovascular system is to transport materials around the body with blood serving as its transport medium. Blood is contained and transported in hollow tubes known as blood vessels. The body has three main types: Arteries, capillaries and Veins. All arteries (with the exception of pulmonary and umbilical arteries) transport Oxygenated blood away from the heart to the rest of the body. They branch off into smaller structures named…

In the brain, there are respiratory centers that are the central control of ventilation. They are located within the brainstem and their job is to adjust ventilation when they receive signals of changes in the chemical composition. Changes in the arterial partial pressure of carbon dioxide or oxygen and changes in blood pH have a major effect on ventilation. For example, when the arterial partial pressure of carbon dioxide and blood pH are altered, it sends a message to the respiratory control…

Our bodies maintain many complex systems in order to have a consistent internal environment to achieve homeostasis. The lungs which are part of the respiratory system play a crucial role in homeostasis by controlling our breathing. The lungs provide the appropriate interface for gas exchange to occur, this includes the delivery of oxygen to the blood and the removal of carbon dioxide carried in the blood to the alveoli which is then expired out of the body. The removal of carbon dioxide also…

between the blood flow and the pressure is expressed with the boundary conditions, angular frequency, and wave velocity. Once a satisfactory mathematical model has been obtained, the designer should construct a prototype and then test the open-loop system. If absolute stability of the open loop is guaranteed, the designer closes the…

an electrical action from the brain and spinal cord to trigger a desired motion by the nervous system into prime movers fibres and the response is that of a contraction of certain desired muscle, its fibres and the skeletal muscles altogether. The stimulus is an action of the nervous system and the response is another action from the muscular system. It emphasizes the co-ordination of two different system in the body such that the minimum stimulus needed to produce a response will always respond…

Worksheet 1: Biological Hierarchy; and Organising the Natural World 1. Define what is meant by the “biological hierarchy”. Biological hierarchy is the structured organisation of all biological entities. It can be shown in pyramid form with the most simple element at the base being atoms and at the pinnacle is the ecosphere, the most complex. 2. What is an “emergent property?” An emergent property is when a new property develops on the next step in the biological hierarchy as the levels…

There are two main types of gas exchanges in the respiratory system. Alveolar gas exchange or external respiration and the systemic gas exchange which is also considered to be internal respiration. The Alveolar Gas exchange is the inhalation of Oxygen and the exhalation of Carbon Dioxide into the pulmonary artery. The pressure gradients affect how oxygen can diffuse down across the respiratory membrane from the alveolar air into the blood, or carbon dioxide diffusing from the capillary into…