Lung diseases are often classified as obstructive or restrictive. How are the two diseases differentiated?  In other words, what is the difference between the two types of disease?

Which condition occurs when the lower extremity becomes painful, swollen and pale due to arterial spasms secondary to to extensive acute iliofemoral thrombosis?

Using the illustration below, match the upper extremity and central veins with the MOST appropriate location.

The thymus gland begins to atrophy immediately after birth.

Red marrow is found within

Which area does not contain MALT?

  Eccentricity = [answer1] Type of conic: [answer2] Equation of directrix: [answer3]

Before S phase in interphase, chromosomes have how many chromatids on each?

7.  Electical wire is wound around a pulley that has radius, r .  Find the radius of the pulley that rotates

There are numerous of neuromuscular diseases that will cause respiratory failure and eventually death.  These neuromuscular diseases are not respiratory diseases but they do affect the respiratory system. Explain in details how these neuromuscular diseases can lead to respiratory failure?