Midterm 1 Flashcards
Which of the following statements belong to Claude Bernard?
pricking of the third ventricle can increase the blood sugar
the liver and the muscle contain glycogen
pancreatic juice contains carbohydrate- splitting enzymes
the heart is the center of circulation
The liver and the muscle contain glycogen
What are the characteristics of environmental stability?
isovolaemia, isothermia, isohydria, isoionia
isoionia, isovolaemia, isometria, isotonia
isotonia, isohydria, isovolaemia, isoionia
isohydria, isothermia, isotonia, isoionia
Isotonia, isohydria, isovolaemia, isoionia
What does isotonia mean?
constant ionic composition
constant pH
constant water content of the blood plasma
constant osmotic pressure
Constant osmotic pressure
Who created the idea of "milieu interieur" ? Cl. Bernard A. L. Lavoisier W. Harvey K. Landsteiner
Cl. Bernard
What does isohydria mean?
constant osmotic pressure
constant pH
constant water content of the blood plasma
constant ionic combination
constant pH
What does isovolaemia mean?
constant osmotic pressure
constant ionic composition
constant volume
constant pH
constant volume
What does isoionia mean?
constant ionic combination
constant osmotic pressure
constant pH
constant water content of the blood plasma
constant ionic combination
How do water molecules occur in the cells?
in four molecular clusters
bound to proteins
entirely dissociated
forming irregular clusters
in four molecular clusters
Which pair below represents the two most important types of barriers?
plasma membrane, nuclear membrane
cell membrane, capillary wall
blood-brain barrier, epithelial membrane
cell membrane, epithelial membrane
cell membrane, capillary wall
What is typical of the cell membrane in terms of permeability?
it is a non-selective membrane
it works as a dialysing membrane
it is only permeable for water and selective for many other materials
it is not permeable to water
it is only permeable for water and selective for many other materials
What is a compartment?
anatomical space
part of the anatomical space
the fluid volume of an organ
a complex term is not identical with the anatomical space
a complex term is not identical with the anatomical space
What percentage of the body's mass is water? 60-65% 30-40% 80-90% 10-20%
60-65%
What percent of the blood is water? 75 % 90 % 22 % 10 %
90%
What is typical of the capillary wall in terms of permeability?
it withholds all material except colloids
it is only permeable to water
it is permeable to colloids
it only keeps out the colloids and is permeable all other material
it only keeps out the colloids and is permeable to all other materials
What kind of materials make up those parts of the membrane which determine the transport?
mostly carbohydrates
steroid compounds
lipids and complex proteins
heavy metals and calcium
lipids and complex proteins
What is typical of the facilitated diffusion?
it is a type of passive transport
it is a type of active transport
it belongs neither to the active nor the passive transport group
it can be regarded as active and passive transport
it is a type of passive transport
Which statement is true concerning material transport across membranes?
receptors are not involved
membrane channels are involved in this process
it runs exclusively with the help of carrier proteins
complex proteins are not involved
membrane channels are involved in this process
What is typical of active transport?
its biological importance is negligible
it can work only by using indirect energy sources
it can work only by using direct energy sources
facilitated diffusion is a major representative of this type of transport
it can work only by using a direct energy source
Which statement is true for extracellular space?
it is uniformly distributed between the EC and the IC space
it is not part of the total water space
it is about 65% of the total water space
it is about 35% of the total water space
it is about 35% of the total water space
What is true for the volume of interstitial space of soft tissues?
it is 120-150 ml/kg bwt
it is less than the fibrotic tissue space
its value is it is 250 ml/ kg bwt
it is less than the volume of the plasm
it is 120-150 ml/kg bwt
Which statement concerning the total water space is correct?
it is about 60 ml/kg bwt
most of it is plasma water
its major part is the intracellular space
it is uniformly distributed between the EC and the IC space
its major part is the intracellular space
How can you calculate the volume of the intravascular space?
plasma volume + transcellular space
interstitial space - transcellular space
extracellular space - (interstitial space + transcellular space)
plasma volume - red blood cell volume
extracellular space - (interstitial space - transcellular space)
What is typical for intracellular space?
it is a uniform space
it consists of one compartment
it contains two spaces
it can be regarded as uniform, though it consists of many smaller compartments
it can be regarded as uniform, though it consists of many smaller compartments
What is typical for the extracellular space?
it does not involve the interstitial space
it is not a uniform space
it is the biggest part of the transcellular space
substracting from it the transcellular space results in the interstitial space
it is not a uniform space