ion movement into and out of a neuron is driven by electrochemical forces
ion movement into and out of a neuron is driven by electrochemical forces
if the equilibrium potential is more positive than the membrane potential, the combined electrochemical force is in the direction of the chemical force.
if the membrane potential is more negative than the equilibrium potential, the electrical force is larger and the electrochemical force is in the direction of the electrical driving force.
sodium channels contribute to the resting membrane potential of a neuron
essential amino acids that must be obtained in the diet of humans
histidine
methionine
tryptophan
valves of the heart
labels:
A) tricuspid
B) pulmonary
C) aortic
D) mitral
the heart is made up of cardiomyocyte cells (contractile muscle)
the heart is made up of pacemaker cells (not contractile, generate electrical impulse)
people with the blood group type O negative are
universal donors for blood transfusions
people with the blood group type AB positive are
universal receivers
arterial blood pressure:
minimum pressure is called the diastolic pressure
maximum pressure is called the systolic pressure
the pulse pressure equals the systolic pressure minus the diastolic pressure
according to Boyle's law:
if a volume of a gas is increased, the pressure will decrease
