Grasshopper Circulatory System Essay

Year 10 Biology IA Research Question How does consistent running up and down on the stairs at differing intensities affect the heart rate in Year 10 students? Introduction The main role of the circulatory system is the delivery of oxygen and nutrients and the removal of carbon dioxide and wastes. The circulatory system consists of the heart and the network of arteries, veins and capillaries. Carbon dioxide present in the body is carried by blood to the lungs for exhalation and oxygen is then picked up. Blood also collects food nutrients from the small intestine, which is then distributed to every cell. The heart is made up of four chambers, and acts as a double pump, with the blood flow moving in a single direction due to the presence of…

Space Bones). Because of the sharp shift in gravitational force experienced by astronauts while traveling in space, many questions plagued scientists and researchers about the human experience in space. As quoted by Valerie Neal, curator and chair of space history at the Smithsonian National Air and Space Museum, “Will they [humans] be able to swallow properly? Will they be able to see properly? Will they be able to urinate?”(Smithsonian) For NASA and other researchers, the question was: how…

FDA requires in vitro testing prior to the in vivo testing in humans or animals. The in vitro environments gives freedom to experiment and evaluate better designs and conduct certain experiments that could not be controlled as accurately within the body. 1.4.1 Mock Circulatory loops (MCL) In order to install a Medical Device inside a human body, it has to go through various testing methods to validate its purpose and design and to avoid further complications…

usually receive the proper amount of blood and oxygen needed to keep the body running. However, when the cardiovascular system fails, the tissues and organs in the body don’t receive and adequate amount of blood and oxygen it needs, this is called shock. Shock is when blood circulation decreases and eventually stops. Shock can be cardiovascular and non-cardiovascular. There are three main cardiovascular causes of shock, which are; poor pump function, blood or fluid loss from blood vessels and…

For starters anything in excessiveness is harmful to our health and so it can be of great damage to either our organs and mental health. Therefore, this is a topic of vast interest relating to the negative and positive effects that consuming alcohol has in our system. Consequently, moderate drinkers can have a reduced percentage of having type 2 diabetes while heavy drinking can lead to liver and heart damage. This topic is an interesting paradox due to the benefits and negative drawbacks that…

ventricle is contract (systole). The pressure is due to the force produced as the blood is ejected contacted with the blood vessel’s wall. On the other hand, the diastolic or bottom pressure is defined as the amount of pressure of the blood vessels when the heart is at rest (diastole). DISCUSSION A) Pulse pressure In simplest words, the pulse pressure can be explained as the amount of pressure when the systolic pressure minus diastolic pressure. The unit is in mmHg. As per theory, the pulse…

CASE STUDY 1 1. The cardiovascular system consists of the following- Blood – It is a red color fluid in the body. Heart – It is also called the control center of our body. It pumps and collects blood to and from the various parts of our body. Blood vessels – Blood vessels are path through which transport medium circulates in our body. 2. The functions of cardiovascular system are as follows- Transportation- It transports blood to all the parts of body. The blood delivers oxygen and nutrients…

Goy, David The Functions of Blood Blood plays a very important role in maintaining the normal functions of the different, tissues, organs and organ systems in the body. It serves as the primary medium for carrying and transporting important gases, minerals and nutrients needed to maintain homeostasis. Blood is composed of several components: plasma, red blood cells, white blood cells and platelets. Plasma is the fluid compartment of the blood; it carries ions, minerals, nutrients, gases,…

The abnormality is based on the absence of ganglion cells from submucosal (Meissner) and myenteric (Auerbach) nerve plexus. There is an absence of these nerve cells in the distal rectum and a variable length of contiguous bowel. These nerve cells are part of the enteric nervous system and are responsible for the peristalsis of the bowel. The aganglionary segment stretches in 70-80% of the cases no further than the rectum and the distal part of the sigmoid. In 20% of the cases, the aganglionary…

cardiovascular, respiratory, musculoskeletal and energy systems, brought about by regular exercise Cardiovascular System The cardiovascular system consists of the blood vessels and the heart. They function is to circulate the blood around the body to all the muscles. The red blood cells carry oxygen to all the muscles through the vein (carries blood to the heart). The veins have thin walls and contain blood under the low pressure. The arteries (carries blood away from the heart) have thick…