Lung Anatomy | Cheat Sheet

University:
Western Sydney University
Course:
MEDI 2003 | Clinical Sciences 2
Academic year:

2024
Views:

64

Pages:

4
Author:

Mariam A. A.

LUNG ANATOMY hssues J R ↓ ↓ oblique+ oblique horizontal 3 Main fox) * gas exchange * acid buse bulance * host defence * air fint passes through nose + mouth * nosterils + nasal sinuses warm, humidity & hiller air as it passes by Carina birkucation of trachea ↓ masks transition Prom uppe to love resp tracts Lungs spongy, expandable each lung occepies a hemithorax Weight *RL heavier than 22 * heavier in males than females Pleura ↓ serous membrane that envelops each ling ↑ ↓ visceral layer pavitul ↓ pavla laye adhere b ↓ the lung Gred to the inne thoracic wall suspended freely within pleural membrane ave only attached to trachea + heast by main bronchides pulmonary vessels Appearance valiahons * new boin light pink * adults mottled appearance that is reflective of the alteration of calloon - based micelics from the airwa potential space ↓ pleural cavity ↓ billed with fluid that allows layers b glide ove each other during apex extend into the thoracic inlet promide above coastal castilase + med. 113 of clavicle breathing dimpendance to breathing mechanism that would anse from Pricional forces excelled between the surfaces Medial surfaces part that faces of mediastinum ant related ant camus of Spinal nerve TI, stellale Covicothoracic sympathetics ganglion z sup. intercoastal atery of the same side Gconsists of mediastinal & vertebral surfaces the helium is on the medial siface of the lung localed between Sth½ 7th vetelbral Levels Structures@ the heilurm *main brondus * pulmonary a. *2 pul. veins * bronchial vessels * pul autonomic plesus #lymmon nodo + vessel * Connective lissre The horontul lissune has a shorter couse than the oblique fissuo davido inb upper, intermediate lowe Voronili velical ↓ more likely for things get stuch heve each lober broncli divide inb segmentul non-regmental Yaronde slightly to the R trachea L 10-12 cm casina L below junction of marilbrium steuni 2nd intercoast cauh lage → up until z=14 act purely as conduchine when z=15 gas exchange begis Acinus ↓ delines all bronchioles, alveola duch, sucks alveoli Heat ove supplied by a single terminul bronchiole overall 25 divisions 154 7 ↓ 1) wulls of cartilage 및 SM 2) submucosal + mucoxal seveling glands epi lining with ilia + goblet cells Wendocine cells next 16-18 U no cartilage 2) muscula layer progressively becomes thinne 5) single layer of ciliated cells W wey few gordet cells 5) granulated clava cells that make surfactant like cells ↓ Alveoli ↓ epi lining tyne I pneumocy les have extremly thin laye of cybplasm thin bounier for gas exchange connected & each othe by light juncions ↓ limit fluid movements ind out of alvechi not compelety our light ↓ may have holes to allow for communication between alveoli of adjong lobules Innervation *AN S+ vagus n. ↓ responsible for dilating constricting the airway for regulating bronchial secuchons derived from Tyre I prevomocypo ↓ mare numerus than tyne I but cover less of epi lining usually in boarders of alveolus contain distinctive lamellar vacules → source of surfactourt has large alveolar macophages Blood supply Pul drunk Pul. a. CR 20 sup. inf. pul. arteries intercoastal hunk's thoracic aorta bronchial a Lymphatic Drainage assist in defending the lungs