cell mechanics
These fibrous proteins stabilize the nucleus and play an important role in mechanical signal transmission for a cell.
What are intermediate filaments?
After the AV valves close, contraction of the ventricle can be seen on the ECG by which waveform?
What is the QRS complex?
The characteristic distance over which gas exchange between alveoli and capillary occurs is represented by this variable
What is Lchar?
This equation is used for steady flow of a Newtonian fluid through a cylindrical vessel.
What is Hagen-P?
(T/F) In spring-dashpot models, the spring represents the cytoplasm while the dashpot represents the ECM
What is a FALSE statement?
(spring --> cytoskeleton [any of the 3 filaments] and dashpot --> cytoplasm)
Proteins that connect the extracellular matrix to the cytoplasm of a cell are called what?
What are integrins?
These three steps summarize the cardiac cycle.
(according to him even tho we learned 5 steps in bio 232)
What are atrial contraction, ventricular contraction, and ventricular relaxation?
(we can discuss what happens in each if we want)
The p hat equation, p^, tell us what?
What is how close the blood gas value has gotten to alveolar gas?
This RBC complex forms at low shear in blood flow.
What is a Rouleaux?
(T/F) At high shear rates, RBCs are oriented along the streamline.
What is a TRUE statement?
This test for cellular mechanical properties involves "tapping" a cell with a tapered probe and calculating the force applied by the cell.
What is an atomic force microscope?
del(y) in the p^ equation stands for what?
What is the thickness of the barrier/the capillary?
If fluid is non-Newtonian, this adjustment is made to the HP equation.
What is adding QHP * F(weird greek letter) where
F(weird greek letter) = the whole thing and
weird greek letter = the other thing?
(T/F) As the viscosity of a fluid increases, the shear stress decreases.
What is a FALSE statement?
Magnetic Bead Micrometers use multiple beads to get a strain field throughout the cell surface. However, this type of cell mechanical testing only uses ONE bead and a laser.
What is Optical Trapping?
In class we derived the equation Co^2 = sqrt(Et/rho*D) (it won't let me put in photos without paying $20).
What does this calculate?
What is elastic/wave speed through arterial pulse propagation?
The equation to the find the volume of H2O exhaled is this
What is Vdry exhaled * ( Ph2o / P dry)?
This can be determined for a fluid when tauy > 0 when shear rate is 0/s
(aka, on a Casson graph, the curve doesn't start at 0,0)
What is a non-Newt fluid?
(T/F) Lung tissue becomes stiffer the more it is stretched
What is a TRUE statement?
Although load is constant on a cell, we observe a logarithmic displacement of the cell surface because of what property?
What is viscoelastic property/viscoelasticity?
What should we do when we see a problem asking about transmitted/reflected stuff?
(if this make sense)
The temperature differences between BTP and STP are this
What is 37C and 0C?
Where, in a vessel, do RBCs experience the highest shear stress?
(i might worded this weird but it's super easy)
What is RBCs near the wall of the vessel/wall shear stress?
(T/F) A large Lchar value means gas exchange between capillary and alveoli happens over a short distance
What is a FALSE statement?