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Showing result 1 - 5 of 33 essays matching the above criteria.

1. 1. The functional anatomy of the crocodilian heart

   University essay from Linköpings universitet/Biologi

   Author : Jennifer Karlsson; [2023]
   Keywords : Anatomy; Cardiac right-to-left shunt; Cog-teeth-like valves; Crocodilian heart; Foramen of Panizza; Hemodynamics; Left aorta;

   Abstract : Crocodiles are ectothermic, intermittent breathing reptiles with low metabolic rates. Additionally, they are diving animals that can stay submerged for long periods, which poses special demands on their cardiovascular system. The crocodilian heart is four-chambered with completely separated ventricles, making it unique among other reptiles. READ MORE

3. 2. Comparison of direct Fick's principle and thermodilution for calculating cardiac output in patients with pulmonary arterial hypertension.Does the assessment of cardiac index and pulmonary vascular resistance differ depending on which method is chosen?

   University essay from Örebro universitet/Institutionen för hälsovetenskaper

   Author : Gabriella Persson; [2023]
   Keywords : Pulmonary arterial hypertension; cardiac output; direct Fick´s principle; thermodilution;

   Abstract : Pulmonary arterial hypertension (PAH) is an uncommon but serious disease that causes increased pressure in the pulmonary vessels and increased pulmonary vascular resistance (PVR), which in turn leads to right heart failure. At diagnosis, mean pulmonary artery pressure (mPAP) must be >20 mmHg, pulmonary artery wedge pressure (PAWP) ≤15 mmHg and PVR >2 Wood units (WU). READ MORE

4. 3. Morphological characterization of the muscular ridge in non-crocodilian reptiles

   University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

   Author : Wilma Sohlén; [2023]
   Keywords : Adaptation; Anatomy; Function; Haemodynamics; Muscular ridge; Reptiles; Shunting;

   Abstract : The cardiovascular systems in ectothermic reptiles have long been studied and its development represent a transition state between a single- and a double circulation. This literature review focus on the typical-reptilian heart and therefore distinguishes between orders within the class of Reptilia. READ MORE

5. 4. BLOOD FLOW DYNAMICS IN IDEALIZED MODEL OF LEFT ATRIUM USING FINITE ELEMENT ANALYSIS

   University essay from KTH/Skolan för teknikvetenskap (SCI)

   Author : Marwin Haddad; Yonatan Noel Efrem; [2023]
   Keywords : finite element analysis; fluid mechanics; blood flow dynamics; cardiovascular anatomy;

   Abstract : Cardiovascular diseases, including heart failure, are a global health concern, necessitating advancements in non-invasive diagnostic tools and treatments. Computational modeling offers an invaluable approach to simulate and understand the intricacies of cardiac flow dynamics. READ MORE

6. 5. Design of radio frequency energy harvesting system : for use in implantable sensors

   University essay from Linköpings universitet/Elektroniska Kretsar och System; Linköpings universitet/Tekniska fakulteten

   Author : Amir Ebrahimi; David Kihlberg; [2022]
   Keywords : RF energy harvesting; RF rectifier; efficiency; voltage sensor; voltage doubler;

   Abstract : Implantable biomedical wireless sensors provide monitoring of vital health signs such as oxygen, temperature and intraocular pressure and may help to analyse and detect diseases in humans and animals. However, one of the design challenges of implantable devices is providing a safe and reliable energy source. READ MORE