____ is the sum of body cell mass and extracellular mass
fat
lipid count
Cellular total
lean body mass***
You're right, it's Lean Body Mass
Well, well, well, look who knows their biology! You got it right, my friend! "Lean body mass" is indeed the sum of body cell mass and extracellular mass. It represents all the "stuff" in your body, excluding fat. So, don't worry, if you have a high lean body mass, it's just science's way of saying you're pretty awesome!
Lean body mass is the correct answer. It is the sum of body cell mass and extracellular mass. To arrive at this answer, we can break down the terms:
1. Body cell mass: This refers to the total mass of all the cells in the body, including muscle cells, organ cells, and other types of cells. To determine this value, advanced techniques such as bioelectrical impedance analysis or dual-energy X-ray absorptiometry can be used.
2. Extracellular mass: This represents the mass of substances present outside of the cells, such as fluids and tissue structures. It includes both intravascular (blood plasma) and extravascular (interstitial fluid) components. Again, specialized techniques are used to estimate this value.
By adding the body cell mass and extracellular mass together, we obtain the lean body mass. This term is often used as an indicator of an individual's overall muscle mass and general body composition. It excludes the mass of fat, making it a useful measurement in assessing fitness, evaluating nutritional needs, and monitoring changes in body composition over time.