Briefly differentiate between atmospheric pressure, intrapulmonary pressure, and intrapleural pressure. Which of these is always negative in a healthy individual during normal breathing?
What will be an ideal response?
Atmospheric pressure is the pressure exerted by gases of the atmosphere. Intrapulmonary pressure is the pressure within the alveoli of the lungs. Intrapleural pressure is the pressure within the intrapleural space. Intrapleural pressure is negative relative to the other two during normal inspiration/expiration. Equalization of the intrapleural pressure with atmospheric pressure or intrapulmonary pressure immediately causes lung collapse.
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The areas of fibrous connective tissue that exist between cranial bones at birth are called
A) condyles. B) fissures. C) fontanels. D) facets. E) sulci.
Which of the following statements is true of metaphase I of meiosis I?
A) Joined homologous pair uniformly line up on the equatorial spindle with chromosome one at the top and chromosome 23 on the bottom. B) Tetrads align randomly on the spindle equator with all the maternal homologs on one side and all the paternal homologs on the opposite side. C) Homologous pairs align randomly on the spindle equator with a mix of paternal and maternal homologs destined for each of the daughter cells. D) The sister chromatids line up randomly on the spindle equator with some maternal and paternal chromatids on both sides of the equator.
The term _____________ describes the mating system where the offspring from a single litter or clutch was sired by different males
Fill in the blank with the correct word.
During a shoulder separation injury, which of the following structures is most likely to be damaged?
A) coracohumeral ligament B) sternoclavicular ligament C) acromioclavicular ligament D) coracoacromial ligament E) None of the answers are correct.