Lungs, Biology

LUNGS (PULMONES) -

539_lungs.png

  1. Present in pleural cavity. Covered by double layered pleura.
  2. Outer parietal pleura and inner visceral pleura.
  3. Both are continuous, slip on each other.
  4. Between them pleural fluid may present in infection so pleurisy is caused.
  5. Lungs are pinkish in colour. Later on turn brown.
  6. Soft, spongy, elastic, made up of involuntary muscles (but does not have own power to contract or relex).
  7. Their contraction or relaxation depends on thoracic cavity or pleural cavity. Lungs are conical in shape.
  8. Each lung has broad concave base on the lower side (due to convex diaphragm).
  9. Lungs are 2 in number. Left lung has 2 lobes left superior & left inferior demarcated by oblique fissure.
  10. Right lung has 3 lobes right superior right middle and right inferior demarcated by transverse and oblique fissure.
  11. Left one smaller than right one, having cardiac notch to adjust heart. Weight of each lung is about 450 gm.
Posted Date: 10/1/2012 8:55:06 AM | Location : United States







Related Discussions:- Lungs, Assignment Help, Ask Question on Lungs, Get Answer, Expert's Help, Lungs Discussions

Write discussion on Lungs
Your posts are moderated
Related Questions
Does pH affect the enzyme activity? The concentration of hydrogen ions in solution affects the enzyme activity. Every enzyme has maximal efficiency under an optimum pH. As p

Cell wall is the structure produced by some of the cells outside their cell membrane; variously composed of the chitin, peptidoglycan, or cellulose.

Define Body Composition - Geriatric Nutrition? After 30 years of age 1-2% decline in lean body mass annually is observed. The total body water, bone mass and lean body mass

Valacyclovir (Valtrex) - Valacyclovir is an L-valyl ester of acyclovir that is metabolized to acyclovir after oral administration, resultingin higher serum concentrations than

Oxidation Some enzymes which have the sulfhydryl (-SH)  group in  the catalytic site are very sensitive to oxidation. Due  to oxidation of  the  -SH  group  by  aerial  oxygen

Q. Causes of gastro oesophageal reflux disease? GERD may develop due to any of the following reasons: • decreased muscle tone or abnormal relaxation of the LES, • reduced st

Q. Why can the bryophytes be considered the "amphibians of the plant world"? Like adult amphibians, the bryophytes live in the terrestrial environment but they depend on water

Dissociation and double dissociations Neuropsychologists typically try to design studies that provide evidence of the differential performance of brain damaged and control subj

I have a test online it is timed 30 minutes on Anatomy and Physiology I need an expert who is an expert in this subject to take it for me

what is the meaning of heterotropic mode of nutrition. with examples.