Mechanism of respiration
What are the Muscles of inspiration Diaphragm External intercostal muscles Sternocleidomastoid muscles Scalene muscles
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Lung volume and capacities
Define Maximum Breathing capacity it is the largest volume of air that can be moved into andout of the lungs in one minute by maximum voluntary effort. Normal: 90-170 L/min (average 100Read More…
Muscle contraction
Questions on muscle contraction what is the Roles of tropomyosin in muscle contraction Tropomyosin regulates muscle contraction by controlling the access of myosin heads to actin filaments. At rest, tropomyosin blocks theRead More…
NERVE FIBER
questions on nerve muscle physiology What are the properties of nerve fiber? ExcitabilityConductivityAll or none phenomenonSummationRefractory periodInfatiguabilityAdaptation or accommodation differentiate between myelinated and non myelinated nerve fiber? myelinated Myelin sheath present NodesRead More…
Intercellular connections
Write short note on Na-K ATPase Pump and Functions The sodium-potassium ATPase pump, also known as the Na+/K+ pump, is a membrane protein that helps to maintain the proper balance of sodiumRead More…
HOMEOSTASIS
What is HOMEOSTASIS Homeostasis is the ability of an organism to maintain a stable internal environment despite changes in the external environment. This is achieved through a complex series of physiological andRead More…
TRANSPORT
What are membrane transport proteins 1. Channels: eg.Ion Channels (Ligand gated, Voltage gated, Mechanically gated) simple diffusion2. Carriers: a. Uniporters (facilitated diffusion), b. Pumps (primary active transport), c. Symporters (se co-active transport),Read More…
Apoptosis
What is Apoptosis Apoptosis is a process of programmed cell death in which body cells die and get absorbed (phagocytosed) under genetic control. Here cell’s own gene plays an active role onRead More…
Action potential
What is action potential An action potential is a rapid sequence of changes in the voltage across a membrane. The membrane voltage, or potential, is determined at any time by the relative ratio of ions, extracellularRead More…
Physiology QA
The study of physiology is, in a sense, the study of life. It asks questions about the internal workings of organisms and how they interact with the world around them. Physiology testsRead More…