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ANATOMY 2 > nasal cavity, larynx, bronchi > Flashcards

nasal cavity, larynx, bronchi Flashcards

1
Q

what does superior nasal meatus contain?

A
  • openings of sphenoid sinus and post ethmoidal cells
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2
Q

what does middle nasal meatus contain?

A
  • contains openings of frontal sinus, maxillary sinus, ant and middle ethmoidal cells
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3
Q

what does inf nasal meatus contain?

A
  • has opening of nasolacrimal duct
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4
Q

blood supplu of nasal cavity?

A
  • ant and post ethmoidal a.< opthalmic a.
  • descending palatine a< maxillary a
  • sphenopalatine a. < maxillary a.
  • facial a.
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5
Q

nerve supply of nasal cavity?

A
  • ant ethmoidal n.
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6
Q

blood supply of larynx?

A
  • sup laryngeal a.< sup thyroid a < external carotid a.

- inf laryngeal a.< inferior thyroid a. < subclavian

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7
Q

venous drainage of larynx?

A
  • sup laryngeal vein–> internal jugular v.

- inf laryngeal vein –> thyroid plexus–> left brachiocephalic

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8
Q

innervation of larynx?

A
  • superior laryngeal n.

- recurrent laryngeal n.

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9
Q

the cartilages making up the larynx?

A
  • thyroid cartilage
  • cricoid cartilage
  • arythenoid cartilage ( elastic cartilage)
  • epiglottic cartilage ( elastic cartilage)
  • cornicualte cartilage
  • cuneiform cartilage
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10
Q

extrinsic membranes of larynx?

A
  • thyrohyoid membrane (median and lat thyrohyoid lig)
  • cricothyroid lig
  • cricotracheal lig
  • hyo-epiglottic lig
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11
Q

intrinsic membranes of larynx?

A
  • quadrangular lig ( aryepiglottic fold–> arythenoid + corniculate cartilages. Inf free edge form vertibular lig.
  • cricothyroid membrane:
  • ## from arch and lamina of cricoid cartilage–> arythenoid cartilage. sup edge forms vocal lig.
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12
Q

joints of larynx?

A
  • cricothyroid joint

- cricoarythenoid joint

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13
Q

cricothyroid joint?

A
  • hinge
  • transverse axis
  • b/w cricoid articular surface and inf horn of thyroid
  • ventro/dorsal swaying
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14
Q

cricoarythenoid joint?

A
  • pivot
  • vertical axis
  • b/w arytheoid articular srfc on cricoid and cricoid articular srfc on arythenoid
  • shift and rotation, fundamental for abduction and adduction of vocal lig.
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15
Q

cricothyroid muscle origin, insertion and function?

A
  • from cricoid cartilage (ventral) –> caudal margin of thyroid cartilage
  • thightening the vocal folds
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16
Q

lateral cricoarythenoid origin, insertion and function?

A
  • from lateral margin of cricoid cartilage–> muscular process of arythenoid.
  • narrows rima glottides. ( cartilaginous part)
17
Q

thyroarythenoid origin, insertion and function`?

A
  • from internal side of thyroid cartilage–> vocal process of arythenoid.
  • constrict rima glottides
18
Q

posterior cricoarythenoid origin, insertion and function?

A
  • post cricoid cartilage –> muscular process of arythenoid

- widens rima glottides

19
Q

oblique arytenoid origin, insertion and function?

A
  • obliquely connect both arythenoid on dorsal sides

- narrows rima glottides

20
Q

transverse oblique origin, insertion and function?

A
  • transversely connevt the arythenoid cartilages on dorals side
  • narrows rima glottides ( membranous part)
21
Q

aryeppiglottic origin, insertion and function?

A
  • fasicles of oblique arythenoid extending to lateral margin of the epiglottic cartilage.
  • forms aryepiclottic fold
  • lowering the epiglottis–> narrowing entrance to larynx.
22
Q

vocalis origin, insertion and function?

A
  • post thyroid cartilage–> vocal process of arythenoid

- relaxes the vocal cords

23
Q

thyroepiglottis origin, insertion and functio?

A
  • inner srfc of thyroid cartilage–> epiglottis

- depresses the base of epiglottis and constrict the entrance into larynx?

24
Q

innervation of the muscles of larynx?

A
  • All muscles are innervated by reccurent laryngeal n. except for cricothyroid which is innervated by superior laryngeal n.
25
Q

how many tracheal cartilages do wehave?

A
  • 15-20
26
Q

where does trachea bifurcates?

A
  • T4
27
Q

what are the ligaments called b/w trachea?

A
  • called annular lig
28
Q

arterial supply of trachea?

A
  • tracheal a.< inf thyroid a.

- bronchial a. < descending aorta

29
Q

venous drainage of trachea?

A
  • tracheal veins–>
30
Q

innervation of trachea?!

A
  • reccurent laryngeal n.

- vagus

31
Q

Kisselbach plexus?

A
  • ant ethmoidal
  • post ethmoidal
  • greater palatine
  • sphenopalatine
  • septal branch of sup labial

ANATOMY 2 (12 decks)

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