Lymphatic System & Disease Resistance 1. Describe lymphatic system functions. The lymphatic system helps fluids circulate the body and helps defend against agents that cause disease. 2. Locate each of the following lymphatic vessels: right lymphatic duct, thoracic (left lymphatic) duct, right and left subclavian veins, and cisterna chyli.
The lymph vessels collect fluid, called lymph from the body tissues and return it to the blood, maintaining the fluid balance within the body. Lymph filters through the lymph nodes, which are packed with white blood cells known as lymphocytes. These are produced in the bone marrow, spleen and thymus, and they help to protect the body against infections. Spleen: This is the largest lymphatic organ. It is located on the left side of the body just above the kidney.
BIOS255 BIOS 255 WEEK 5 Lab 5 - Lymphatic System & Disease Resistance 1. Describe lymphatic system functions. The primary functions of the lymphatic system are to drain and return interstitial fluid to the blood to absorb and return lipids from the digestive system to the blood, and to filter fluid of pathogens, damaged cells, cellular, and cancerous cells to help protect against invasion. 2. Locate each of the following lymphatic vessels: right lymphatic duct, thoracic (left lymphatic) duct, right and left subclavian veins, and cisterna chyli.
This affected me during the bleep test because vasodilation allows more oxygenated blood to travel to the actively respiring muscle tissues. Other acute responses which occur to the musculoskeletal system during exercise include an increase in muscle pliability. If your muscles get warmer because of the contraction temperature is going to rise this makes them more pliable and reduces the risk of injury. Pliability is the stretchiness of the muscles. There is also an increase in the synovial fluid at the joint.
Unit 4222-265 Causes and spread of infection (ICO2) Understand the causes of infection 1. The differences between bacteria, viruses, fungi and parasites Bacteria belong to a group of single celled microorganisms which are classified as prokaryotes i.e. they do not have membrane bound organelles. They have no true nucleus as the DNA is not contained within a membrane or separated from the rest of the cell, but is coiled up in a region of the cytoplasm called the nucleoid and the cell is surrounded by a cell wall an outer covering that protects the bacterial cell and gives it shape. Viruses are infectious agents, often highly host-specific, consisting of genetic material surrounded by a protein coat.
These features are brought about through chemical/inflammatory mediators released from damaged tissues. The main effects of these mediators are on the blood supply, causing vasodilation (redness and heat) and increased blood vessel permeability that allow plasma proteins and immunoglobulins to pass easily into the tissues. “Pressure or nerve endings from the interstitial fluid and the effect of some inflammatory mediators such as substance P and prostaglandins that cause pain” (Dobson, 1999). In our case inflammation of a toe might be acute or chronic. Acute inflammation is a rapid response to an injurious agent that serves to deliver mediators of host defense—leukocytes and plasma proteins—to the site of injury.
This is here platelets in the clot contract pulling on the fibrin strands that they are attached to. Outcome 4 Be able to obtain capillary blood
P4: Explain the physiology of two named body systems in relation to energy metabolism in the body. Cardiovascular System This system transports materials to the liver and body cells through the bloodstream that is pumped by the heart. Blood Blood is a liquid tissue made up of; plasma, platelets, white and red blood cells and is necessary for every part of the body. The blood contains many different materials and cells and there is fluid called plasma which contains many substances dissolved in it. Plasma carries food from the stomach to cells but carries waste from the cells to the kidneys and intestine.
Parietal cells (secrete HCI) and gastric glands (acetylcholine) are directly related to the formation of ulcers. D. Why does Zach’s G.I. tract need the substance that contributes to the formation of ulcers? How is this substance secreted by cells within the gastric pits? d. Zach’s G.I.
The viscelar layer of the Bowman’s capsule and the endothelial capillary network of the glomerulus come together and form an endothelial-capsular membrane. This is where filtration of water and blood solutes occurs. Collecting ducts connect with distal tubules of nephrons in the medulla to help collecting ducts