Cellular Metabolism Flashcards
the process in which, normally, the body cells break down molecules of glucose to produce energy
Cellular metabolism
the breakdown of molecules such as glucose through a series of reactions that produce energy within the cells in presence of oxygen
aerobic metabolism
the breakdown of glucose into pyruvic acid in the cells
glycolysis
breakdown of molecules in the cells without the presence of oxygen
anaerobic metabolism
pertains to disease
Patho
study of living systems
Physiology
the fraction of inspired oxygen (pt. breathing spontaneously on own)
FiO2
fraction of delivered oxygen (by a ventilation device to pt. who is unable to breath on own)
FDO2
bag valve mask flowing at 15lpm approx. how much oxygen is delivered
95-98% oxygen
open & not obstructed by any substance
Patent Airway
covers the opening of the larynx (glottis opening)
Epiglottis
houses the vocal cords
Larynx
vocal cords spasm & close together
Laryngeal spasm
the flap of cartilaginous that covers the opening of the larynx
Epiglottis
a jaw-thrust or chin-lift maneuver is designed to life the what?
Epiglottis clear of the glottis opening
what two things are necessary for normal cell function?
Oxygen and Glucose
Glucose broken down in the presence of oxygen produces a large amount of energy (ATP)
Aerobic metabolism
Glucose broken down without the presence of oxygen produces pyruvic acid that converts lactic acid and only a small amount of energy (ATP)
Anaerobic metabolism
The by-products of anaerobic metabolism are:
lactic acid and a small amount of ATP
The by products of aerobic metabolism are:
- heat
- carbon dioxide
- water
Sodium (Na+) is found where?
outside the cell
Potassium (K+) is found where?
inside the cell
The first stage of cell metabolism is
anaerobic
without oxygen, pyruvic acid is converted to?
lactic acid
What happens in the presence of extensive anaerobic metabolism?
cells die, which can lead to organ failure & death
the delivery of oxygen, glucose, & other substances to the cells & the elimination of waste products from the cells
Perfusion
Ambient air contains how much nitrogen?
Oxygen?
79% nitrogen
21% oxygen