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Anatomy 2 > Respiratory- Nasal Cavity/Larynx > Flashcards

Respiratory- Nasal Cavity/Larynx Flashcards

1
Q

Nasal Cavity Blood Supply:

Septum

A

Sphenopalatine artery
Ethmoidal arteries (anterior / posterior)
Grater palatine artery
Superior labial (facial artery)

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2
Q

Nasal Cavity Blood Supply:

Lateral Wall

A

Sphenopalatine artery
Ethmoidal arteries (anterior / posterior)
Grater palatine artery
Lateral nasal (facial artery)

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3
Q

Kiesselbach’s area

A

Anastomotic area in the septum

Epistaxis associated with trauma

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4
Q

Special sensory (Smell)

A

Olfactory nerve (epithelium of roof and superior nasal concha)

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5
Q

General sensory

A

V1 -Anterior ethmoidal

V2 Infraorbital nerve,Grater palatine nerve, Nasopalatine nerve

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6
Q

Paranasal air sinuses general sensory

A

V1- Frontal / Ethmoidal / Sphenoidal sinuses

V2- Maxillary sinus

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7
Q

AUTONOMIC NERVE SUPPLY

A

Greater petrossal nerve (Intermedius / Facial)

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8
Q

Parasympathetic fibers (preganglionic)+Deep petrossal nerve

A

Nerve of pterygoid canal

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9
Q

Nerve of pterygoid canal

A

Pterygopalatine ganglion

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10
Q

Postganglionic fibers

A

Palatine nerves (nasopalatine / greater / lesser palatine)
Pharyngeal
Orbital

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11
Q

Palatine nerves (nasopalatine / greater / lesser palatine)

A

Nasal / palatine

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12
Q

Pharyngeal nerve supplies

A

Pharyngeal

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13
Q

Orbital nerves supplies

A

Sphenoidal / Ethmoidal

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14
Q

Parasympathetic nerve supply

A

Secretomotor for Mucous glands (nasal, palatine, pharyngeal, sphenoidal, ethmoidal)

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15
Q

Sympathetic fibers

A

Vasoconstrictor

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16
Q

LARYNX

A

Behind the infrahyoid muscles and fasciae

Connected to hyoid bone by Thyrohyoid membrane

17
Q

Larynx Topographical relationships

A

Anterior to the pharynx
Between the neurovascular bundle of the neck
Surface projection-Below the hyoid bone

18
Q

CARTILAGES of Larynx

A

Hyaline-Thyroid Cricoid Most of arytenoids

Elastic-Epiglottis Corniculate Cuneiform Apex of arytenoids

19
Q

Rima glottidis

A

Intercartilaginous part- Between arytenoid cartilages

Intermembranous part- Between vocal folds

20
Q

Fibro-elastic membrane

A

Within the cartilage encasement

Sandwiched between Mucous membrane and Laryngeal muscles

Upper part Quadrangular membrane:
Free inferior border-Vestibular ligament
Superior border- Aryepiglotic ligament

Inferior part-Conus elasticus
Lateral cricothyroid ligaments

21
Q

Cricothyroid joints

A

Rotation of cricoid cartilage around a transverse axis

Changes in tension of vocal folds and ligaments

22
Q

Cricoarytenoid joints

A

Arytenoid cartilages rotate around a vertical axis

Vocal process swing:
Laterally Width of rima glottidis inreases
Medially Width of rima glottidis decreases

23
Q

Cricothyroid muscles

A

Stretch and tense the vocal folds and ligaments

The degree of tension determines the sound pitch (frequency)

24
Q

Thyroarytenoids

A

Main relaxers

Relaxation by shortening vocal folds and ligaments. Vocalis also involved in relaxation.

25
Q

Posterior cricoarytenoid muscles

A

Only abductors of vocal folds

Arytenoid cartilages Rotate medially
Vocal processes Swing laterally

Forced inspiration

Pull arytenoids backward- Tense vocal folds

26
Q

Lateral cricoarytenoid muscles

A

Main adductors of vocal folds

Arytenoid cartilages Rotate laterally
Vocal processes Swing medially

Whispering- Intercartilaginous part of rima glottidis remain opened

27
Q

Transverse arytenoid

A

Pull the arytenoid cartilages together

Preparatory to Phonation

28
Q

Oblique arytenoids and Aryepiglottics

A

Sphincteric action-Prevents entrance of foreign bodies into laryngeal cavity

29
Q

Thyroepiglottic

A

Widen the laryngeal inlet

Anatomy 2 (8 decks)

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