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.
4. Identify each of the following in a lymph node: afferent lymphatic vessels and efferent vessels. a. afferent lymphatic vessels b. efferent lymphatic vessels c. What is the function of the macrophages within the lymph nodes? The macrophages within the lymph nodes filter lymph and remove bacteria and cellular debris before lymph is returned to the blood. d. Identify spleen functions.
tract? Which cells are direct participants in formation, and how do they contribute to lesions in the G.I. tract wall? c. Zach’s stomach contributes to the formation of ulcers by the acids needed to breakdown food when they are excessive. Parietal cells (secrete HCI) and gastric glands (acetylcholine) are directly related to the formation of ulcers.
It's also found in the uterus and fallopian tubes. The movement of cilia move the ovum to the uterus. Glandular Epithelium are basically columnar epithelium with goblet cells. Some parts consist of such a large number of goblet cells that there are only a few normal epithelial cells left. They secrete substances
The kidney is surrounded by a capsule membrane, each of these membranes are topped by the conical adrenal gland. Both the kidneys and adrenal glands are coated in adipose tissue. Gross anatomy When the kidney is presented in a longitudinal section it displays an outer darker cortex and an inner paler medulla. The composition of the medulla is made up of cone shaped pyramids known as medullay pyramids, the tip of these cones are pointed into the area where the ureter connects the kidney. “The medulla is further divided into numerous sections called the medullary pyramids.”This region is known as the pelvis of the kidney.
The abdominal aorta supplies the abdominal walls, viscera, and ends at T4 level where it branches into right and left common iliac arteries to supply the pelvis and lower limbs. The superior vena cava vein receives systemic blood draining from all areas superior to the diaphragm except the heart wall. It unites with the right and left brachiocephalic veins and empties into the right atrium. Both brachiocephalic veins are formed by the joining of the internal jugular and subclavian veins. The inferior
It is a series of physical reactions that transform liquid blood into a gel that forms a secure patch over the damaged blood vessel. Coagulation has three main stages: Formation of factor x and prothrombinase, Prothrombin is converted to thrombin and finally Fibrinogen is converted to fibrin. The clot is formed by these stages. It is then strengthened by a process called Clot Retraction. This is here platelets in the clot contract pulling on the fibrin strands that they are attached to.
The bulk of the pancreas is a ___________ gland. 217. What type of specialized cells are present in the pancreas to secrete pancreatic juice? 218. Where does the pancreatic duct lead to?
1. What are two major functions o the lymph node. a. Body Defense b. WBC Formation c. Maturation of T Cells d. Storage of RBC’s e. Both a & B f. Both a & C 2. What is a function of the lymphatic system g. Absorb digested fats h. Produce & Mature immune cells i. Reabsorb extracellular fluid & Return it to the bloodstream j.
Module 07 Written Assignment Questions 1. Compare and contrast non-specific immunity and specific immunity. Be sure to discuss first and second lines of defense as well as cell-mediated and antibody mediated immunity. Non-specific immunity and specific immunity are responses that take place within the body when a threat is presented and needs to be fought off. Through the use of white blood cells, these two forms of immunity are able to attack harmful pathogens triggering inflammation and/or fever.