Essays on Carotid

Poly-trauma and Blast Exposure

Poly-trauma is a condition in which the body organ systems and physical regions develop injuries (Faist & Heberer, 2006). Injuries that define poly-trauma can be life threatening to victims. These injuries risk the victims psychosocial, psychological cognitive, and patients functional ability. Poly-trauma and blast exposure are commonly found together. When defense personnel and veterans are exposed to more powerful military explosions, they are more often than not likely to experience poly-traumatic injuries. Such exposure can cause penetration of blast injuries to the body and to the brain. Exposure to Military explosions may as well cause severe hemorrhage that comes from ...

Where are the normal pacemaker and the backup pacemaker of the heart located?

Answer: The normal pacemaker of the heart is known as Sino- atrial (SA node) which is located in the right atrium of the heart, whereas, the backup pacemaker of the heart is known as Atrio- ventricular and it is situated in the centre of the heart along the right atrim (AV node) (Rhodes, 2008).

Why does this patient have a bradycardia?

Answer: The patient has bradycardia as a result of occlusion in the right coronary artery (Serrano Jr et al., 1999). Infarction in the right coronary artery is known to give rise to bradycardia.

What parts of the heart have the fastest and slowest conduction velocities?

Answer: The Purkinje fibres have the fastest conduction velocities whereas the AV ...

1. Biot’s respiration named after Camille Biot is an abnormal ataxic breathing pattern, where rapid series of shallow respiration are followed by a period of apnea. In order to known how AMP kinase, knock down leads to Biot respiration in mice; it is necessary to known how AMP kinase affects respiratory rate. AMP kinase is a metabolic sensor and is activated in response to stretching of the lung alveolar cells and other stressors. During respiration, the lung goes through cycles of expansion and contraction (Budinger et al., 2008). When the alveolar cells stretch during expansion, the 5′ AMP-activated ...

Abstract

The literature defines hypertension as a medical condition experienced when the systolic blood pressure (BP) is equal or greater than 140 mm Hg or when the diastolic blood pressure is equal or greater than 90 mm Hg. Additionally, it offers a description of systematic, cellular, as well as molecular causes of hypertension. High blood pressure within the arteries is referred to as systemic hypertension (SH). The primary role of the systemic arteries is the transportation of oxygenated blood from the heart to the tissues of the body. The constriction of the arterioles (small arteries) is responsible for the high ...

Introduction

Heart valve surgery is used for the repairing or replacement of valves of the heart that are diseased. The patients receive general anesthesia in this type of surgery whereby the surgeon makes a large surgical incision in the breastbone. The incision is meant to enable the surgeon to reach the aorta and the heart (Kato Paragraph 2). The relevance of stroke to the procedure of open-chest valve surgery is that it is one of the risks associated with cardiac surgery. Other risks include death, failure of the kidneys, cardiac arrest, irregular beats of the heart, and post-pericardiotomy syndrome (Kato ...