Blood capillaries converge to form venules and then veins. Lymph flows through lymph nodes. f. Describe the lymphatic system role with regard to lipids and lipid-soluble vitamins. The lymphatic vessels transport lipids and lipid-soluble vitamins A, D, E, and K absorbed by the gastrointestinal tract. 2.
Explain the relationship between the hepatic artery, hepatic vein, and hepatic portal vein. Include how these blood supplies influence the vascularization of the lobule (which is the functional unit of the liver). 6. Explain what a portal triad is. Follow the output of bilirubin (which is hemoglobin waste) through the liver lobule and portal triad.
Cardiovascular system The cardiovascular system consists of our heart (left and right ventricle, left and atrium, aorta, tricuspid valves, semi-lunar valves, vena cava, pulmonary artery and pulmonary vein), blood and blood vessels (renal artery, hepatic artery, renal vein and hepatic vein). The cardiovascular system is responsible for transporting nutrients and removing gaseous waste from the body. Digestive system The digestive system consists of the stomach, pancreas, liver, small intestine (duodenum, ileum and jejunum) and the colon (ascending colon, transverse colon, descending colon and sigmoid colon). The digestive system is used for digesting foods to a soluble form for the small intestine to absorb the minerals and vitamins and then what is left of the food is transported to the colon for water reabsorption and then excreted through the anus. Endocrine system The endocrine system is the system of glands, each of which secretes different types of hormones directly into the bloodstream to maintain homeostasis.
And Inguinal lymph nodes are located in the groin area, these also may be superficial or deep lymph nodes. The major functions of lymph nodes are to remove foreign materials which are extracted from the lymph and deposited here. They store lymphocytes, type of white blood cell and releases them when necessary. There are two types of lymphocytes, T-cell and B-cell lymphocytes. T-cells destroy foreign substances directly or indirectly by releasing various substances.
Through the flow of blood in and out of arteries, and into the veins, and through the lymph nodes and into the lymph, the body is able to eliminate the products of cellular breakdown and bacterial invasion. Two very large areas are of significance in this system - the right lymphatic duct which drains lymph fluid from the upper right quarter of the body above the diaphragm and down the midline, and the thoracic duct, a structure roughly sixteen inches long located in the mediastinum of the pleural cavity which drains the rest of the body. It is through the actions of this system including the spleen, the thymus, lymph nodes and lymph ducts that our body is able to fight infection and to ward off invasion from foreign invaders. Lymph plays an important role in the immune system and in absorbing fats from the intestines. The lymphatic vessels are present wherever there are blood vessels and transport excess fluid to the end vessels without the assistance of any "pumping" action.
This causes the anterior pituitary gland to produce and secrete a hormone (adrenocorticotropic hormone) that travels through the circulatory system. When the hormone reaches the adrenal cortex it binds to a cell-surface receptor, which signals the synthesis and release of cortisol. Answer B: A tropic hormone stimulates the synthesis and secretion of a hormone by another endocrine gland. The releasing hormone secreted by the hypothalamus stimulates the release of a hormone by the anterior pituitary, so it is a tropic hormone. The hormone secreted by the anterior pituitary stimulates the secretion of a hormone by the adrenal cortex, so it is also a tropic hormone.
Vascular Events in an Inflammatory Response |Events |Simplified description of event |Professional description of event | |1st |Germs from the nail are introduced to the skin |An object punctures the skin, bacteria enters and | | | |multiplies. Hyperemia will then cause neutrophils to line on| | | |the capillary walls. This protects from microorganisms | |2nd |Surrounding cells leak fluid that affects the blood |. Tissue that is damaged can release histamines in the body.| | |vessels | | |3rd |The fluid affecting the surrounding blood vessels causes |Histamine can cause the blood vessels to expand. This allows| | |the release of other cells into the tissue |plasma and neutrophils to move from the blood vessels into | | | |damaged tissue | |4th |As the wounded part of the body reacts to the germs, |Polymorphs move to the bacteria by the chemotaxis and | | |certain cells destroy these germs |ingested.
These electrical impulses can be recorded in an ECG (electrocardiogram) and used to detect problems with the heart. Blood * Blood consists of red blood cells, white blood cells and plasma. Red blood cells transport oxygen and carbon dioxide. White blood cells combat inflammation and infection. Plasma, the liquid part of the blood, is mostly water but it also carries antibodies and proteins.
The posterior pituitary stores and secretes oxytocin and hormone which are produced in the hypothalamus. The hypothalamus is responsible for certain metabolic processes and other activities of the autonomic nervous system responsible for maintaining homeostasis such as: hunger, appetite, temperature regulation, sleep cycles,
5. Understand the roles of endothelial injury, inflammation, lipids, and smooth muscle in the development of atherosclerosis. 6. Heart failure a. Define heart failure.