- Видео 103
- Просмотров 165 458
Medical Sciences with Dr. Kanani
Добавлен 15 янв 2023
I am Dr. Shahnaz Kanani, with more than 15-year experience of teaching a variety of medical sciences, including Anatomy and Physiology, Pharmacology, Pathology, Embryology, Histology, Periodontology, Dental Materials, Dental Anatomy, and Nutrition. The key to learning medical sciences is simplicity. To learn a complex concept, first we need to break down it down into small simple pieces, then put the pieces together one-by-one to build the big picture.
ACE Inhibitor and Hypertension (A Simple Explanation)
In this video, I will briefly explain how the use of ACE Inhibitor results in decreasing the secretion of angiotensin II and aldosterone hormones, and I provide a short review on how a deceased secretion of these hormones affects factors such as urine volume, blood volume, or systemic vascular resistance, and therefore, leads to a deceased blood pressure.
Просмотров: 82
Видео
Extraocular Muscles and Strabismus
Просмотров 5710 месяцев назад
In this video, I explain the extraocular muscles (four recti and two oblique muscles), the main actions of these muscles, and the cranial nerves (oculomotor, trochlear, abducens) stimulating these muscles resulting in eye movement. I briefly explain the role of levator palpebrae superioris in opening eye and orbicularis oris in closing eye. Also, I explain strabismus, some of its main causes an...
Human Eye Anatomy
Просмотров 8910 месяцев назад
In this video, I explain the 3 main layers (tunics) that form human eyeball: fibrous layer (sclera and cornea), vascular layer (choroid, ciliary body, iris), inner layer (retina), and the major functions of each anatomical structure including the main structures involved in light refraction (focusing the light), the anatomy of the lens and how its curvature and thickness change due to the contr...
Cholesterol (Good, Bad, Ratio), Lipoproteins (Chylomicron, VLDL, LDL, HDL)
Просмотров 16411 месяцев назад
In this video, I explain the sources of cholesterol (through diet and synthesized by some body cells), and the method of transporting cholesterol as one of the components of the major lipoproteins (chylomicron, very low-density lipoprotein/VLDL, low-density lipoprotein/LDL, and high-density lipoprotein/HDL). Then, I explain the formation of each one of these lipoproteins, the delivery system fo...
Concentrated Urine Production and the Impacts of Caffeine and Alcohol
Просмотров 117Год назад
In this video, I explain the steps to produce a concentrated urine, provide examples of situations in which the kidneys must produce this type of urine, describe the solutes, hormone, and sections of the renal tubule involved in the process, and the type of nephrons that have a significant role in concentrating the urine. Then, I explain the caffeine found in coffee, tea, soda inhibits which st...
Atherosclerosis and LDL Cholesterol (Bad Cholesterol)
Просмотров 684Год назад
In this video, I will explain the steps that lead to the formation of atherosclerosis plaque in the wall of arteries, including the oxidation of LDL entered in the artery wall and formation of oxidized LDL cholesterol (harmful cholesterol), phagocytosis of LDL cholesterol by macrophages and formation of foam cells, and ultimately bursting/lysis of foam cells and formation of atherosclerosis pla...
Gas Exchange in Lungs
Просмотров 137Год назад
In this video, I will explain how the deoxygenated blood inside the pulmonary capillaries of the lungs convert into the oxygenated blood, and the diffusion of oxygen and carbon dioxide between the pulmonary alveoli and the pulmonary capillaries. To explain this process, I will use three examples of deoxyhemoglobin (carbaminohemoglobin/deoxyhemoglobin that carries carbon dioxide, deoxyhemoglobin...
How Tissues Get Oxygen (Internal Respiration)
Просмотров 108Год назад
In this video, I will differentiate oxyhemoglobin from deoxyhemoglobin, and explain the factors that affect the attraction/affinity of hemoglobin for oxygen molecule, and the reason that hemoglobin is willing to release oxygen to the tissue cells when blood flows through the systemic capillaries. Throughout the process of internal/tissue respiration, I will explain the role of carbon dioxide, h...
How We Breathe (Breathing and Brain)
Просмотров 288Год назад
In this video, I will explain the steps to take in order to inhale and exhale normally and quietly vs. forcefully and labored. I will explain the sections of the brain referred to as respiratory center in medulla oblongata (medullary respiratory center: dorsal respiratory group and ventral respiratory group) and in pons (pontine respiratory group), and how these neurons communicate with each ot...
Human Body Cavities
Просмотров 620Год назад
In this video, I will explain the anatomical structures that form the major body cavities including cranial cavity, vertebral (spinal) cavity, orbital cavities, nasal cavities, oral cavity, tympanic cavities, thoracic cavity (pleural cavities, pericardial cavity, mediastinum), and abdominopelvic cavity (abdominal cavity and pelvic cavity). Also, I will list some of the important organs located ...
Maximal Heart Rate and Exercise Recommendations
Просмотров 102Год назад
In this video, I will explain some of the effects of aerobic physical activities, the recommended amount of aerobic exercise per week for adults following the public guideline and provide examples of moderate intensity aerobic exercises and vigorous intensity aerobic exercises. Also, I will explain the formula to calculate the estimated maximum heart rate and clarify the healthy range of heart ...
Brain (An Overview of the Major Parts)
Просмотров 156Год назад
In this video, I will explain the major parts of the brain, which include cerebrum, cerebellum, brainstem (midbrain, pons, medulla oblongata), and diencephalon (thalamus, hypothalamus, epithalamus), the role of longitudinal fissure, transverse cerebral fissure, central sulcus, falx cerebri, tentorium cerebelli. I will discuss the five lobes (frontal, parietal, temporal, occipital, insula) in ea...
Erythropoietin and Natural Blood Doping
Просмотров 465Год назад
In this video, I will explain the secretion and impact of erythropoietin hormone on the production of red blood cells, the hematocrit level in males vs. females, and reasons for a higher hematocrit level in adult males. Following explanation of some stimuli for an increased secretion of erythropoietin, I will explain the positive aspects of natural blood doping, and the importance of monitoring...
Erythropoiesis (RBC Production)
Просмотров 100Год назад
In this video, I will provide an overview on the process of erythropoiesis, the location in which this process starts (red bone marrow), and a few of the cells formed throughout this process (proerythroblast, reticulocyte, erythrocyte). I review some of the important functions of erythrocytes/RBCs including the percentages of oxygen and carbon dioxide transported by this cells. At the end, I wi...
Absorption of Amino Acids, Dipeptides, and Tripeptides
Просмотров 1,2 тыс.Год назад
In this video, I will explain the transport processes (primary active transport, secondary active transport, facilitated diffusion), and the molecules (amino acid transporter, amino acid pump, sodium ion pump, sodium ion symporter, hydrogen ion symporter) in the apical and/or basal surface of the absorptive cells lining the small intestine involved in the absorption of amino acids, dipeptides, ...
Vertebral Bones, Intervertebral Discs, and Pelvic Girdle
Просмотров 594Год назад
Vertebral Bones, Intervertebral Discs, and Pelvic Girdle
Autorhythmic Fibers of the Heart (The Conduction System)
Просмотров 528Год назад
Autorhythmic Fibers of the Heart (The Conduction System)
Skull External View (Anterior, Lateral, Posterior)
Просмотров 447Год назад
Skull External View (Anterior, Lateral, Posterior)
Cranial Base (Bones and Anatomical Structures)
Просмотров 202Год назад
Cranial Base (Bones and Anatomical Structures)