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Physio Assignment 2

QuestionAnswer
What is the function of lymph nodes? Filtration of lymph. they catch harmful particle circulating, and phagocytic cells destroy the pathogen.
What is innate immunity? Immunity that a person is born with. It is nonspecific, and can be physical barriers such as skin, sebum, and mucus membranes.
What is adaptive immunity? It is acquired and acts on specific agents. When exposed to a pathogen, memory cells will recognize the pathogen, and next time you are exposed, you will have antibodies for that specific agent.
Define Tidal Volume (TV). The volume of air exhaled after a normal inhale (inspiration).
In the context of neurons, what is a refractory period? Absolute: For about 0.5 ms after threshold potential is reached, area of axon membrane resists stimulation. Relative: A few ms after absolute, membrane is repolarizing. During this period, it will only respond to extremely strong stimuli.
What is cerebrospinal fluid (CSF) and what is its function? CSF is a fluid circulating in the brain and spinal cord. It acts as a cushion from trauma, and it also monitors changes in the internal environment of the brain and spinal cord.
Which node initiates the electrical conduction of the heart? the SA node, "pacemaker"
What is the equation for cardiac output (CO)? SV (volume/beat) x HR (beat/min)= CO
What is the pathway of pulmonary circulation? 1. Deoxygenated blood moves from right atrium to right ventricle 2. Blood moves from right ventricle to pulmonary artery 3. Blood moves to lung arterioles/capillaries for gas exchange 4. Blood moves throw venules and into 4 pulmonary veins 5. Travels t
What is the pathway of systemic circulation? 1. Oxygenated moves from left atrium into left ventricle 2. Blood moves from left ventricle to ascending aorta, to arteries that flow to rest of body 3. Gas exchange occurs, then flows into veins 4. Deoxygenated blood flows through inferior and superio
Created by: user-1992593
 

 



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