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Áåñïëàòíàÿ òåõíè÷åñêàÿ áèáëèîòåêà äëÿ ëþáèòåëåé è ïðîôåññèîíàëîâ Áåñïëàòíàÿ òåõíè÷åñêàÿ áèáëèîòåêà


Àíãëèéñêèé ÿçûê äëÿ ìåäèêîâ. Thoracic wall (êîíñïåêò ëåêöèé)

Êîíñïåêòû ëåêöèé, øïàðãàëêè

Ñïðàâî÷íèê / Êîíñïåêòû ëåêöèé, øïàðãàëêè

Êîììåíòàðèè ê ñòàòüå Êîììåíòàðèè ê ñòàòüå

Îãëàâëåíèå (ðàçâåðíóòü)

ËÅÊÖÈß ¹ 14. Thoracic wall

There are 12 thoracic vertebrae. The vertebrae have facets on their bodies to articulate with the heads of ribs; each rib articulates with the body of the numerically corresponding vertebra and the one below it. The thoracic vertebrae have faces on their transverse processes to articulate with the tubercles of the numerically corresponding ribs. Sternum: the manubrium articulates with the clavicle and the first rib. It meets the body of the sternum at the sternal angel an important clinical landmark.

The body articulates directly with ribs 2-7; it articulates interiorly with the xiphoid process at the xiphisternal junction. The xiphoid process is cartilaginous at birth and usually ossifies and unites with the body of the sternum around age 40.

Ribs and costal cartilages: there are 12 pairs of ribs, which are attached posteriorly to thoracic vertebrae.

Ribs 1-7 are termed "true ribs" and attach directly to the sternum by costal cartilages.

Ribs 8-10 are termed "false ribs" and attach to the costal cartilage of the rib above. Ribs 11 and 12 have no anterior attachments, and are therefore classified as both "floating ribs" and false ribs. The costal groove is located along the inferior border of each rib and provides protection for the intercostal nerve artery, and vein, ribs 1, 2, 10, 11, and 12 are atypical. Muscles: external intercostal muscles.

There are 11 pairs of external intercostal muscles. Their fibers run anteriorly and inferiorly in the intercostal spaces from the rib above to the rib below.

These muscles fill the intercostal spaces from the tubercles of ribs posteriorly to the costochondral junctions anteriorly; they are replaced anteriorly by external intercostal membranes. Internal intercostal muscles: there are 11 pairs of internal intercostal muscles. Their fibers run posteriorly and inferiorly in the intercostal spaces deep to the external layer.

These muscles fill the intercostal spaces anteriorly from the sternum to the angles of the ribs posteriorly; they are replaced posteriorly by internal intercostal membranes.

Innermost intercostal muscles: the deep layers of the internal intercostal muscles are the innermost intercostal muscles.

These muscles are separated from the internal intercostal muscles by intercostal nerves and vessels.

Subcostalis portion: Fibers extend from the inner surface of the angle of one rib to the rib that is inferior to it.

Fibers may cross more than one intercostal space, Transversus tho-racis portion: Fibers attach posteriorly to the sternum. Fibers cross more than one intercostal space.

Internal thoracic vessels, branches of the subclavian arteries, run anterior to these fibers. Intercostal structures

Intercostal nerves: there are 12 pairs of thoracic nerves, 11 intercostal pairs, and 1 subcostal pair.

Intercostal nerves are the ventral primary rami of thoracic spinal nerves. These nerves supply the skin and musculature of the thoracic and abdominal walls.

Intercostal arteries: there are 12 pairs of posterior and anterior arteries, 11 intercostal pairs, and 1 subcostal pair.

Anterior intercostal arteries.

Pairs 1-6 are derived from the internal thoracic arteries.

Pairs 7-9 are derived from the musculophrenic arteries.

There are no anterior intercostal arteries in the last two spaces; these spaces are supplied by branches of the pos terior intercostal arteries.

Posterior intercostal arteries: the first two pairs arise from the superior intercostal artery, a branch of the costocervical trunk of the subcla vian artery.

Nine pairs of intercostal and one pair of subcostal arter ies arise from the thoracic aorta.

Intercostal veins: Anterior branches of the intercostal veins drain to the internal thoracic and musculophrenic veins.

Posterior branches drain to the azygos system of veins.

Lymphatic drainage of intercostal spaces: anterior drainage is to the internal thoracic (parasternal) nodes.

Posterior drainage is to the paraaortic nodes of the poste rior mediastinum.

New words

thoracic - ãðóäíîé

wall - ñòåíêà

below - ïîä

sternum - ãðóäèíà

clavicle - êëþ÷èöà

xiphisternal - ãðóäèííûé

true - ïðàâäèâûé

false - ôàëüøèâûé

groove - óãëóáëåíèå

above - íàä

anteriorly - ðàíüøå

intercostal - ìåæðåáåðíûé

subcostal - ïîäêîñòíûé

portion - ÷àñòü

transversus - ïîïåðå÷íûé

musculophrenic - ìûøå÷íûé ãðóäîáðþøíîé

paraaortic - ïàðààîðòàëüíûé

mediastinum - ñðåäîñòåíèå

Çàïîìíèòå ñëåäóþùåå çàñòûâøåå ñëîâîñî÷åòàíèå.

I to watch _ TV

Åñëè ïåðåä ñóùåñòâèòåëüíûì ñòîèò âîïðîñèòåëüíîå èëè îòíîñèòåëüíîå ìåñòîèìåíèå, àðòèêëü îïóñêàåòñÿ.

E. g. What colour is your cat?

I want to know what _ book you are reading.

Çàïîëíèòå ïðîïóñêè, ãäå íåîáõîäèìî.

1. My... aunt and my... uncle are... doctors.

2. They work at... hospital.

3. They get up at seven o'clock in... morning.

4. They go to... bed at eleven o'clock.

5. I work in... morning and in. after noon.

6. I don't work in... evening. I sleep at... night.

7. When do you leave... home for... school?

8. I leave... home at... quarter past eight in... morning.

9. What does your mother do after... breakfast?

10. She goes to... work.

11. Is there... sofa in your... living-room?

12. Yes, there is... cosy little... sofa in... living-room.

13. Where is... sofa? - It is in... corner of... room to... left of... door.

14. I like to sit on this... sofa in... front of... TV-set in... evening.

15. There is... nice coffee-table near... window.

16. There are... newspapers on... coffee-table.

17. There is... tea in... glass.

18. When do you watch... TV? - I watch TV in... evening.

19. We have... large colour TV-set in our... room.

20. There is. beautiful vase on... TV-set. There are... flowers in... vase.

Answer the questions.

1. How many thoracic vertebrae are there?

2. What does each rib articulate with?

3. What does the manubrium articulates with?

4. With how many ribs does the body articulates directly?

5. How many pairs of ribs are there?

6. How are termed ribs 1-7?

7. How are termed ribs 8-10?

8. How are classified ribs 11-12?

9. How many pairs of thoracic nerves are there?

10. What does intercostal nerves supply?

Make the sentences of your own using the new words (10 sentences).

Find the definite and indefinite articles in the text.

Àâòîð: Åëåíà Áåëèêîâà

<< Íàçàä: Neck

>> Âïåðåä: Blood

Ðåêîìåíäóåì èíòåðåñíûå ñòàòüè ðàçäåëà Êîíñïåêòû ëåêöèé, øïàðãàëêè:

Ëàòèíñêèé ÿçûê äëÿ ìåäèêîâ. Êîíñïåêò ëåêöèé

Ðóññêèé ÿçûê. Èòîãîâûå òåñòû

Ôèíàíñîâûé ìåíåäæìåíò. Øïàðãàëêà

Ñìîòðèòå äðóãèå ñòàòüè ðàçäåëà Êîíñïåêòû ëåêöèé, øïàðãàëêè.

×èòàéòå è ïèøèòå ïîëåçíûå êîììåíòàðèè ê ýòîé ñòàòüå.

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Ïîñëåäíèå íîâîñòè íàóêè è òåõíèêè, íîâèíêè ýëåêòðîíèêè:

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Îñíîâîé ýòèõ ðàçðàáîòîê ñòàëè ñïëàâû ñ ýôôåêòîì ïàìÿòè ôîðìû, ïðåæäå âñåãî íèêåëü-òèòàíîâûå ñîåäèíåíèÿ, èçâåñòíûå êàê NiTinol. Îíè ïîçâîëÿþò ñîçäàâàòü øèíû, êîòîðûå íå ðâóòñÿ è íå òðåñêàþòñÿ ïðè ñèëüíîé äåôîðìàöèè, à ïîñëå ýêñòðåìàëüíûõ íàãðóçîê âîçâðàùàþòñÿ ê èñõîäíîìó ñîñòîÿíèþ. Ýòî ñâîéñòâî îñîáåííî öåííî â óñëîâèÿõ âíåçåìíûõ ìèññèé, ãäå íàäåæíîñòü êàæäîãî ýëåìåíòà òåõíèêè îïðåäåëÿåò óñïåõ âñåé ýêñïåäèöèè.

Ýêñïåðèìåíòû â èññëåäîâàòåëüñêîì öåíòðå NASA èìåíè Ãëåíà ïîêàçàëè, ÷òî òàêèå êîíñòðóêöèè âûäåðæèâàþò èçãèáû è äàâëåíèÿ, êîòîðûå óíè÷òîæèëè áû ëþáûå ðåçèíîâûå ïîêðûøêè. Øèíà Superelastic, ðàçðàáîòàííàÿ íà áàçå NiTinol, ñïîñîáíà âûäåðæèâàòü äî 10% äåôîðìàöèè è ïðè ýòîì ïîëíîñòüþ âîññòàíàâëèâàòüñÿ, òîãäà êàê òðàäèöèîííàÿ ðåçèíà âûõîäèò èç ñòðîÿ óæå ïðè 0,5%. Êðîìå òîãî, íîâûå øèíû íå íóæäàþòñÿ â âîçäóõå, ÷òî èñêëþ÷àåò ïðîêîëû è ïðîáëåìû ñ äàâëåíèåì.

Ïðèìåíåíèå èííîâàöèé íå îãðàíè÷èâàåòñÿ êîñìîñîì.  NASA îòìå÷àþò, ÷òî ñâåðõýëàñòè÷íûå øèíû ìîãóò íàéòè ìåñòî è íà Çåìëå. Îíè îáåñïå÷èâàþò ñöåïëåíèå íå õóæå, à ïîðîé äàæå ëó÷øå, ÷åì òðàäèöèîííûå ïíåâìàòèêè, ïîâûøàþò áåçîïàñíîñòü äâèæåíèÿ è ýêîíîìèþ òîïëèâà. Áëàãîäàðÿ îòñóòñòâèþ âíóòðåííåãî êàðêàñà è âîçäóõà êîíñòðóêöèÿ ñòàíîâèòñÿ ëåã÷å è ïðîùå â èíòåãðàöèè.

Ïåðâûå øàãè ê êîììåð÷åñêîìó èñïîëüçîâàíèþ óæå ñäåëàíû. SMART Tire Company çàïóñòèëà íà ïëàòôîðìå Kickstarter ïðîåêò âåëîñèïåäíûõ øèí METL, èçãîòîâëåííûõ èç íèêåëü-òèòàíîâûõ ïðóæèí, íàïîìèíàþùèõ çíàìåíèòóþ èãðóøêó-"ñëèíêè". Òàêèå ñïèðàëè îáâèâàþò âñþ øèíó, ñîçäàâàÿ ïðî÷íóþ è ãèáêóþ îñíîâó. Îäíàêî ïåðåõîä îò âåëîñèïåäíûõ ìîäåëåé ê àâòîìîáèëüíûì ïîêà îñëîæíÿåòñÿ âûñîêîé ñòîèìîñòüþ ñïëàâîâ è íåîáõîäèìîñòüþ àäàïòàöèè êîíñòðóêöèè.

Òåì íå ìåíåå, èíæåíåðû íå îñòàíàâëèâàþòñÿ. Íîâûå ìîäåëè - îò ïðóæèííûõ øèí METL äî ãëàäêèõ Superelastic - ïðîõîäÿò èñïûòàíèÿ íà êàìåíèñòîé ìåñòíîñòè, èìèòèðóþùåé ìàðñèàíñêèé ëàíäøàôò. Ðåçóëüòàòû âïå÷àòëÿþò: êîëåñà âûäåðæèâàþò äîëãèå íàãðóçêè, îñòàþòñÿ óïðóãèìè è äåìîíñòðèðóþò äîëãîâå÷íîñòü, î êîòîðîé ïðîèçâîäèòåëè ðåçèíîâûõ ïîêðûøåê ìîãóò ëèøü ìå÷òàòü.

Ãëàâíîå ïðåèìóùåñòâî ýòîé òåõíîëîãèè â åå óíèâåðñàëüíîñòè. Òàêèå øèíû ìîæíî íàñòðîèòü ïîä ðàçíûå ïîêðûòèÿ, áóäü òî ïûëü Ëóíû, îñòðûå ìàðñèàíñêèå êàìíè èëè ðàçáèòûé àñôàëüò íà çåìíûõ óëèöàõ. Îíè ñïîñîáíû âûäåðæèâàòü äåñÿòèëåòèÿ ýêñïëóàòàöèè, ïðè ýòîì îñòàâàÿñü óñòîé÷èâûìè ê èçíîñó è âíåøíèì óñëîâèÿì.

Äðóãèå èíòåðåñíûå íîâîñòè:

▪ Îðãàíè÷åñêèå ïåðåçàðÿæàåìûå áûòîâûå áàòàðåè

▪ Ìèðîâàÿ êàðòà ñ÷àñòüÿ

▪ Èñêóññòâåííûé ìîçã ñ ôóíêöèîíèðóþùåé ñèñòåìîé çàùèòû

▪ Âîçäóøíàÿ ëîâóøêà äëÿ íàñåêîìûõ

▪ Íàñòîëüíûé ìèêðîôîí Yamaha Adecia RM-TT

Ëåíòà íîâîñòåé íàóêè è òåõíèêè, íîâèíîê ýëåêòðîíèêè

 

Èíòåðåñíûå ìàòåðèàëû Áåñïëàòíîé òåõíè÷åñêîé áèáëèîòåêè:

▪ ðàçäåë ñàéòà Áûòîâàÿ ýëåêòðîíèêà. Ïîäáîðêà ñòàòåé

▪ ñòàòüÿ Âñÿêîé òâàðè ïî ïàðå. Êðûëàòîå âûðàæåíèå

▪ ñòàòüÿ Êàêîé ñïîðòñìåí-èíâàëèä âûèãðàë Îëèìïèàäó ó çäîðîâûõ àòëåòîâ? Ïîäðîáíûé îòâåò

▪ ñòàòüÿ Ðåâèçîð. Äîëæíîñòíàÿ èíñòðóêöèÿ

▪ ñòàòüÿ Äâà ðàäèîìèêðîôîíà íà 1 êì. Ýíöèêëîïåäèÿ ðàäèîýëåêòðîíèêè è ýëåêòðîòåõíèêè

▪ ñòàòüÿ Óñòðîéñòâî ïåðåêëþ÷åíèÿ ñ àâòîìàòè÷åñêèì çàðÿäíûì óñòðîéñòâîì. Ýíöèêëîïåäèÿ ðàäèîýëåêòðîíèêè è ýëåêòðîòåõíèêè

Îñòàâüòå ñâîé êîììåíòàðèé ê ýòîé ñòàòüå:

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