General Concepts 3 min read
Systemic and Pulmonary Circulation
Key Terms alveoli: Air sacs in the lungs that provide the surface for gas exchange between the air and capillaries.…
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General Concepts 3 min read
Heart Valves
The heart has four valves – one for each chamber of the heart. The valves keep blood moving through the…
General Concepts 7 min read
Cardiac Cycle
The period of time that begins with contraction of the atria and ends with ventricular relaxation is known as the cardiac…
General Concepts 6 min read
What to know about cardiac muscle tissue
Cardiac muscle tissue, or myocardium, is a specialized type of muscle tissue that forms the heart. This muscle tissue, which…
General Concepts 3 min read
The Conducting System of the Heart
The cardiac conduction system is a collection of nodes and specialised conduction cells that initiate and co-ordinate contraction of the heart muscle.…
General Concepts 3 min read
Heart Anatomy
Your heart is located between your lungs in the middle of your chest, behind and slightly to the left of…
General Concepts 2 min read
Anatomy of the Heart and Cardiovascular System
The heart and circulatory system make up your cardiovascular system. The heart and circulatory system make up your cardiovascular system. Your…
General Concepts 4 min read
Homeostasis: positive/ negative feedback mechanisms
Homeostasis The biological definition of homeostasis is “the tendency of an organism or cell to regulate its internal environment and…
General Concepts 7 min read
Homeostasis
Introduction What’s the temperature in the room where you’re sitting right now? My guess would be that it’s not exactly 98.6\,^\circ\text…
General Concepts 3 min read
Depolarization Repolarization of the Cell Membrane
Nerve cells at rest have an electrical charge across their membranes: the outside of the cell is positively charged and the inside…
General Concepts 2 min read
Cell Theory
Cell Theory was proposed by the German scientists, Theodor Schwann, Matthias Schleiden, and Rudolf Virchow. The cell theory states that:…
General Concepts 3 min read
Cell Structure
The cell structure comprises of certain components with specific functions essential to carry out life’s processes. These components include- cell…
