Hepatic portal vein

The human heart contains a specialized conduction system through which it can create and transmit electrical impulses without any external neural input. The main components of the conduction system of the heart include the SA node, AV node, Bundle of His and the Purkinje fibers. The sinoatrial node (also known as SA node) is a natural pacemaker and is responsible for depolarization of the right and left atrium. This produces a P wave on the EKG reading which is normally 0.1 second and its normal…

The scientific term which is used to describe the temperature control in the body is called hypothalamus. Hypothalamus begins in your brain since your brain makes the choices for your body. This is very important because if you're too cold you can start shivering for long periods of time which can lead up to hypothermia. On the other hand, if you are too hot you and start to sweat a lot it can lead up to avoid disease. Here are the 3 different that your body can make in these tough situations.…

Blood pressure is defined as a measurement of the force with which blood presses against the wall of a blood vessel. Blood pressure, as popularly used, is the pressure determined indirectly, existing in the large arteries at the height of the pulse wave. When a blood pressure reading is taken, the systolic over diastolic value is determined. Systolic pressure is defined as an aspect of a blood pressure reading which indicates the maximum arterial pressure occurring during contraction of the left…

easily treatable if caught early. The definition of Pulmonary Embolism is a blockage or thrombi in one of the pulmonary arteries of your lungs (Pulmonary Embolism). Most of these thrombi originate in the veins in your lower extremities; though sometimes the thrombi can come from upper extremity veins, renal, pelvic, or right heart chambers, instead. Once in the pulmonary arteries, large thrombi sometimes lodge at the bifurcation of the main pulmonary artery and cause hemodynamic compromise…

congestion – these are characteristic of left-sided heart failure. In right-sided heart failure, hepatomegaly could occur due to the increased pressure within the hepatic vein; ascites could occur because of the pooling of blood in the inferior vena cava; and pitting edema could also occur due to increased fluid retention in the veins (from increased capillary…

“Disseminated intravascular coagulation (DIC) is a life-threatening acquired pathologic process in which the clotting system is abnormally activated, resulting in widespread clot formation in the small vessels throughout the body. The pathophysiology is excess thrombin is generated, followed by deposition of fibrin strands in the body tissues.” (Ball, 2012) “The circulating fibrin fragments later begin to interfere with platelet aggregation and other aspects of the clotting mechanism, resulting…

What side of the heart is affected by congestive heart failure (right, left, or both)? At the point when the right half of the heart starts to work less effectively, it can't pump much blood into the vessels of the lungs. Would Fluid accumulate somewhere? If so, Where? Explain your answer. Yes, Congestive heart failure (CHF) happens when the heart's pumping activity turns out to be weak to the point that liquid starts to amass in the lungs and other body tissues. This li quid development is…

Jugular Veins The most accessible veins for examination are the internal and external jugular veins in the neck. Both veins drain bilaterally from the head and neck into the superior vena cava. The external jugular vein lies superficially and is just above the clavicle. The internal jugular vein lies deeper, along the carotid artery. It is best to examine the right internal jugular vein because it follows a more direct anatomical path to the right atrium of the heart. The column of blood inside…

constant (Merriam-Webster). Optic nerve: A part of the central nervous system, the optic nerve connects the eye to the brain, carrying electrical signals formed by the retina to be interpreted as images (Medicine Net). Central retinal vein: The central retinal vein is where blood circulating in the eye is returned to the heart to be cleaned. It forms the arterioles, branches of an…

1. Anatomy of the trachea and bronchi. The trachea (Fig.1) is a cartilaginous and membranous tube, extending from the lower part of the larynx, on a level with the sixth cervical vertebra, to the upper border of the fifth thoracic vertebra, where it divides into two main bronchi, one for each lung. The trachea is nearly but not quite cylindrical, being flattened posteriorly; it measures about 11 cm. in length; its diameter, from side to side, is from 2 to 2.5 cm., being always greater in…