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Lungs
Week 3
| Question | Answer |
|---|---|
| How many lobes does left and right have? | Left 2; Rt 3 |
| Name the type of fissure that the lungs have? | Oblique and transverse/horitzontal fissure |
| What is a tongue-like projection in the lungs? | lingula |
| Lung surface that faces the rib cage? | costal |
| Lung surface that is on the bottom, which rests on diaphragm ? | diaphragmatic |
| Lung surface that extend above clavicle and into 1st rib ? | cervical |
| Lung surface that extends to the n?eck | Coupla |
| Lung surface on left lung that face the heart? | Medialstinum |
| How can you tell the arteries, from the veins and the bronchi? | The bronchi are hard because of cartilage, arteries are thick-walled and veins are thin walled. |
| Grooves on the left lung caused by? | Arch of aorta and cardiac impression |
| Groove on the RT lung caused by? | the inferior vena cava, the azygous vein and the esophagus. Also has a (less prominent) cardiac impression. |
| blood leaves from lungs (oxygenated blood to the heart to be distributed) | Pulmonary Vein |
| blood goes into lungs (deoxygenated blood)? | Pulmonary Artery |
| If pulmonary arteries bring deox blood, the tissue need oxygen and nutrients, so what need a small artery ? | Bronchiole artery,(which is a branch of the aorta) |
| TYpe of lining covers the lung? | visceral |
| What do tertiary bronchi supply? | Tertiary bronchi supply the bronchopulmonary segments |
| If you swallowed a nickel down the larynx, where would it most probably end up? | In the right primary bronchi right before it splits into secondary bronchi |
| What type of epithelium lines bronchi? | Simple epithelium facilitates diffusion. |
| Each lobe has a secondary bronchi which has how many branches to tertiary bronchi | 10 each |
| Bronchus -> | Bronchioles |
| Innervation to the lungs all motor innervation to lungs is ? | GVE ( sympathetic and parasymathetic(vagus nerve innervates) |
| What does the parasympathetic innervation do to the bronchial muscles, blood vessels, and mucosal glands? | Constrict blood vessels (vasoconstriction), constrict bronchioles. increase glandular secretion |
| Where are the preganglionic and postganglionic sympathetic nerve cell bodies found? | Lateral horn of the spinal cord (preganglionic cell body). Lateral chain ganglion (post ganglionic cell body). |
| What nerve is carrying parasympathetic fibers? | Vagus nerve. |
| What does the sympathetic innervation do to the bronchial muscles, blood vessels, and mucosal glands? | dialates the blood vessels, and bronchial muscles and will decrease secretion VASODIALTION |
| What nerve is carrying the sympathetic fibers? | pulmonary plexus |
| histamine release by mast cellsWhat binds to smooth muscle of bronchiole tree and cause contraction? | histamine |
| Sympathetic nervous system causes ? | bronchiodialtion |
| run along with the respirator tubes (not part of sympathetics)-run with the vagus nerve-have cough reflex-response to irritants that might get into respiratory track | GVA |
| What blood vessel supplies oxygenated blood to the visceral pleura? | Bronchiole artery (same as bronchiole tree) |
| In an allergic reation histamine is released by ? | Mast cells |
| What is inhibitory to the smooth muscle, so cause it to relax, and causes glands on brochiole tree not to secrete | bronchiodilation |
| -recognize that over surface of diaphragm, over heart | parietal pleura |
| space between lungs and wall | parietal cavity |
| space between the two pleura? | is visceral cavity |
| covering of the lungs? | visceral pleura |
| Lateral plate mesoderm splits into: | -somatic lateral plate mesoderm-associated with ectoderm-splanchic mesoderm- associated with endoderm (lines it) |
| When embryo folds laterally | bring amniotic cavity to surround-ectoderm forms outer body wall forms epidermis-surrounds entire embryo |
Created by:
skumar5
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