midterm Flashcards
insulin
takes up blood glucose from blood
lowers bld glucose
glucagon
when their is low blood glucose levels the pancreas releases it to bring levels back to normal
hyperglycemia
high blood glucose
hypoglycemia
low blood glucose
direct calorimetry
measures energy output by measuring heat ..exact measurement
indirect calorimetry
estimates energy output using respiratory gases
respiratory exchange rate
exchange ratio between oxygen intake and co2 output
basal metabolic rate
rate expidenture at rest
VO2 drift
increase in oxygen taken in during exercise
excess post oxygen consumption
the amount of oxygen the body takes in after exercise to recover
myelin sheath
fatty coverings around axon to help nerve impulse travel faster
resting membrane potential
-70 milli difference of electrical change
graded potential
change in resting membrane potential (at a certain level the channels open)
down regulation
receptor becomes desensitized
up regulation
increased sensitivity to hormone
epinephrine/norepinephrine
fight or flight increased HR and fat mobilization
steroid hormone
structure similar to chol.
can go thru cell membrane
non steroid hormone
cant go thru cell membrane
not lipid soluble
Golgi tendon organ
measure tension and rate of tension
axon hillock
cone shaped helps with nerve impulse
muscle spindle
measure length and length of change
hyperpolization
becomes more neg.
more K
depolarization
becomes more positive
more NA
antidiuretic hormone
retains water
EPO
RBC transports oxygen to tissue and muscle
gets ride of CO2
