List of top Biomechanics Questions

At a given frequency, the storage modulus \( G' \) and loss modulus \( G'' \) of four biomaterials are shown in the table below. Which of the following option(s) is/are CORRECT?

A Newtonian fluid of viscosity \( \mu \) is undergoing laminar flow in a tube of radius \( R \). For a constant pressure drop per unit length along the tube, which of the following statement(s) is/are CORRECT?
Note: \( r \) represents the radial position; assume no slip condition at the boundaries.

Which one of the following hormones is NOT secreted by the adrenal gland in humans?

Cerebrospinal fluid in humans is present in the _______space.

The shape of an elastic rod of length \( l \) is represented by the position vector \( \vec{r}(s) \) corresponding to the arc length \( s \). If the bending energy of the rod is \[ E = K \int_0^l \left( \frac{\partial^2 \vec{r}}{\partial s^2} \right)^2 \, ds, \] what is the dimension of \( K \) in terms of mass \( M \), length \( L \), and time \( T \)?

Let \( R_1, R_2 \) and \( R_3 \) be the Reynolds numbers corresponding to the following three cases, respectively:
Case 1: A 1 \(\mu\)m long bacterium swimming in water
Case 2: A 10 cm long fish swimming in water
Case 3: A 10 m long whale swimming in water
If each of them covers a distance equal to their respective body length in one second, which one of the following is CORRECT?

Given the following statements, which one of the options is correct?
Statement (i): Histology is the study of histones
Statement (ii): Cytology is the study of tissues

For pulsatile blood flow through an artery of internal diameter 20 mm, wall thickness 1 mm, and Young’s Modulus 1 MPa, what is the wave speed in metres per second? (rounded off to one decimal place). Assume the density of blood to be 1050 kg/m\(^3\).

For a tissue with Young’s modulus 4 kPa and shear modulus 1.5 kPa, what is the value of the Poisson’s ratio?