Veins are blood vessels that return blood from the outer parts of the body back to the heart. Veins have different sizes that depends on their location and function. The veins that are deeper and closer to the center of the body are called deep veins. Varicose veins are veins that have become bulging‚ widened and twisted. They usually look blue or dark purple. Some other symptons of varicose vains include: aching‚ heavy and uncomfortable legs‚ swollen feet and ankles‚ muscle cramping and swelling
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-dz assignment Diagram Micrograph Structure (noun) Function (verb) Relationship between S/F Nucleus - Nucleus composed of chromatin‚ nucleoplasm‚ a nucleolus‚ and a nuclear envelope - Has large pores (nuclear pores/nuclear envelope) - Nuclear envelope has a double membrane - Diameter of 5 micrometers - spherical shape - controls all cell activity by directing which enzymes are made for specific functions - stores the genetic material of the cell (DNA) - directs
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Organelle | Found In | Structure | Function | Cell Membrane (plasma membrane) | Both | A phospholipid bilayer that contains proteins. Lipids face each other while the phosphates face away from each other. Most proteins stay with the outer layer of phospholipids. | Protective barrier. Transports required materials and wastes in and out of the cell. Cell communication. | Nucleus | Both | Dense sphere inside the cell. Surrounded by a nuclear envelope with nuclear pores that allow for material transportation
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The song‚ “In My Veins” has a strong connection between the lyrics and my past. Verse 1 mentions‚ “People say goodbye‚ in their own special ways” I did once have a precious friend that was my best friend for years‚ but then communications between us didn’t work out as well as I thought and we began to go our separate ways. Instead of the fight being told in person‚ it was told over a social media DM inbox. It did hurt over the days I thought about it‚ who would’ve thought‚ the person you thought
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Pd. 6 Coronary Artery Disease Coronary heart disease (CHD)‚ also called coronary artery disease‚ is a condition in which plaque builds up inside the coronary arteries. These arteries supply oxygen-rich blood to your heart muscle. This plaque is made up of fat‚ cholesterol‚ calcium‚ and other substances found in the blood. When plaque builds up in the arteries‚ the condition is called atherosclerosis‚ the buildup of plaque occurs over many years. Over time‚ the plaque hardens which causes your coronary
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and to do so‚ numerous FDA workers needed to research tobacco and its components. Kessler and the FDA needed evidence to prove that tobacco was drug that altered the structure and function of the body so that they can establish their jurisdiction. When the FDA and Kessler discovered that the tobacco companies knowingly controlled how much nicotine was in cigarettes‚ they had documented evidence to present to the public with its findings. In addition‚ the FDA argued that cigarettes could be classified
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ESSAY ‘The structure and importance of the plasma membrane found within and around all cells’ The plasma membrane surrounds all eukaryotic and prokaryotic cells. Eukaryotic cells have membrane bounded organelles whereas prokaryotic cells do not. The plasma membrane forms the boundary between the cell cytoplasm and the environment. Its function are to allow different environments to be established inside and outside the cell. It also controls the movement of substances into and out of the cell.
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Coronary artery disease (CAD) is a progressive disease that causes narrowing or occlusion of the coronary arteries‚ causing a decreased blood supply to the myocardial layer of the heart‚ and prevents the arteries from dilating. As a result the tissue is deprived of oxygen necessary to thrive‚ which in turn can lead to myocardial ischemia‚ leading to several types of infarctions. Depending on the area of the ischemia‚ there can be several complications. For example‚ a ST segment elevation myocardial
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Court System Structure‚ Function and Jurisdiction Performance Assessment Task 4 Kelly Schoepke Introduction to Criminal Justice Phil Schmidt November 6‚ 2009 Over the years the U.S. court system has evolved into an intricately balanced legal process (Siegel‚ 354). The founding fathers of the nation considered an independent federal judiciary essential to ensure fairness and equal justice for all citizens of the United States. The American judicial system is made up of two separate court
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gets to a plants cell by diffusion. Both stems and roots contain xylem vessels and phloem tubes. In a stem these are grouped into vascular bundles arranged in a ring. In a root these are arranged in the centre forming a structure called the stele. Xylem tissue has the dual functions of support and transport. It contains several different types of cells these are vessel elements‚ traceids‚ fibres and parenchyma cells. In contrast to this phloem tissue is living and comprises of sieve tubes‚ phloem
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