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Ursula Santamaria

Physiology Stack 2: Weeks 7-13

QuestionAnswer
What is 'action potential' and what is another name for it/ also known as? The membrane potential of a neuron that is conducting an impulse; Also known as a "nerve impulse". (Chapter 19)
What are 2 main functions of Cerebral Spinal Fluid (CSF)? 1. Provide a supportive, protective cushion and 2. Reservoir of circulating fluid, monitored by the brain to detect changes in the internal environment. (Chp. 20)
True or False? Autonomic Sensory Receptor is found in internal organs and mediate our subconscious visceral senses (ie: pH, chemical concentrations, temperature, pressure, etc.) True. (Chp. 23 General Senses)
Which part of the heart is considered the "pacemaker"? A.) SA node, B.) AV node, C.)Bundle of His or D.) Purkinje fibers A.) SA node: Initiates each heartbeat and sets its pace (Chp. 28 the Heart)
What are the 2 main functions of lymph nodes? 1. Defense Functions- Filtration and phagocytosis and 2. Hematopoiesis (Chp. 31 Lymphatic System)
What is Total Lung Capacity (TLC)? The sum of all 4 lung volumes - the total amount of air the lung can hold (Chp. 36 Ventilation)
True or False? Deglutition is the process of swallowing and it requires rapid and coordinated movements. True. (Chp. 40 Digestion and Absorption)
What is the Bohr effect? Increased PCO2 decreases the affinity between oxygen and hemoglobin. (Chp.37 Gas Exchange and Transport)
What is adaptive immunity and what are the roles of B and T cells? Adaptive Immunity is specific immunity. B cells: -mediated (humoral) antibody immunity; T cells: cell-mediated (cellular) immunity (Chp. 33 Adaptive Immunity)
The wall of the heart is made up of which 3 distinct layers? 1. Epicardium (outer layer) 2. Myocardium (thick inner layer) and 3. Endocardium (thin inner layer) (Chp.28 Heart)
Created by: Urstruly39
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