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Lansang Notes > Head and Neck 3 > Flashcards

Head and Neck 3 Flashcards

1
Q

Fascial compartment comprising the visceral organs of the neck

A

Pretracheal fascia

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2
Q

Hormones produced by the thyroid gland

A

T4, T3, and calcitonin

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3
Q

The isthmus lies at the level of the ___

A

2nd, 3rd, 4th tracheal rings

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4
Q

Fibromuscular slip that connects the pyramidal lobe to the hyoid bone

A

Levator glandulae thyroidea

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5
Q

Posteriorly, the thyroid gland is related to __ and __

A

Common carotid artery

Inferior thyroid artery

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6
Q

Embryological origin of the thyroid gland

A

Foramen Cecum

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7
Q

Arterial supply of the thyroid gland

A

Superior thyroid artery
Inferior thyroid artery
Thyroidea Ima artery

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8
Q

Origin of the superior thyroid artery

A

External carotid artery

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9
Q

Accompanies the superior thyroid artery

A

External laryngeal nerve

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10
Q

Origin of the inferior thyroid artery

A

Thyrocervical trunk

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11
Q

Accompanies the inferior thyroid artery

A

Recurrent larungeal nerve

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12
Q

Origin of the thyroidea ima artery

A

Aorta or brachiocephalic artery

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13
Q

Venous drainage of the thyroid gland

A

Superior thyroid vein–> IJV
Middle thyroid vein–> IJV
Inferior thyroid vein–> brachiocephalic vein

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14
Q

Lymphatic drainage of the thyroid gland

A

Pretracheal lymph nodes
Paratracheal lymph nodes
Prelaryngeal lymph nodes
Deep cervical nodes

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15
Q

Blood supply of the parathyroid gland

A

Superior and inferior thyroid vessels

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16
Q

Hormone secreted by parathyroid gland

A

Parathyroid hormone

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17
Q

Embryological origin of parathyroid gland

A

Endoderm of 3rd and 4th pharyngeal pouches (5th week)

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18
Q

The trachea divides at the region of the carinainto right and left primary bronchi at the level of ____

A

4th and 5th thoracic vertebra

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19
Q

Blood supply of cervical trachea

A

inferior thyroid vessels

20
Q

Lymphatic drainage of the cervical trachea

A

pretracheal and paratracheal lymph nodes

21
Q

Borders of the pharynx

A

Base of the skull to cricoid cartilage (C6) where it becomes continuous with the esophagus

22
Q

Widest portion of the pharynx

A

Opposite the hyoid bone

23
Q

Narrowest portion of the pharynx

A

At the esophageal orifice

24
Q

Contained in the posterior wall of the nasopharynx

A

Pharyngeal tonsils

25
Q

Contained in the lateral wall of the nasopharyn

A

Opening of eustachian tube

26
Q

Part of pharynx common to respiratory and alimentary tracts

A

Oropharynx

27
Q

Longest division of the pharynx

A

Laryngopharynx (Hypopharynx)

28
Q

Makes up the outer circular layer of the muscular coat of the pharynx

A

Superior constrictor
Middle constrictor
inferior constrictor

29
Q

Constitutes the inner longitudinal layer of the muscle coat of the pharynx

A

stylopharyngeys and palatopharyngeus muscles

30
Q

The lowest fibers of the inferior constrictor muscle which acts as a sphincter on lower end of pharynx which prevents entry of air into esophagus between acts of swallowing

A

Cricopharyngeus muscle

31
Q

Nerve supply of the muscle coat of pharynx

A

Pharyngeal plexus except stylopharyngeus

32
Q

Nerve supply of stylopharyngeus

A

CN IX

33
Q

Blood supply and venous drainage of upper third of esophagus

A

Inferior thyroid artery and vein

34
Q

Blood supply and venous drainage of middle third of esophagus

A

Descending thoracic aorta and azygos vein

35
Q

Blood supply and venous drainage of lower third of esophagus

A

Left gastric artery and portal vein

36
Q

Functions of the larynx

A

Guards opening of air passage

Voice production

37
Q

Membrane pierced by the superior laryngeal vessels and internal laryngeal nerves

A

Thyrohyoid membrane

38
Q

Ligament connecting the lower margin of cricoid cartilage to 1st tracheal ring

A

Cricotracheal ligament

39
Q

Parts of the cavity of larynx

A

Vestibule
Middle part of larynx
lower part of larynx

40
Q

Gap between vestibular folds

A

Rima vestibuli

41
Q

Gap between vocal folds and vocal processes of arytenoids

A

Rima glottidis

42
Q

Intrinsic muscles of the larynx: sphincters

A

Oblique arytenoid

Aryepiglottic

43
Q

Nerve supply of oblique arytenoid and aryepiglottic muscles

A

Recurrent laryngeal nerve

44
Q

Intrinsic muscles of larynx that control movement of vocal folds (mention the action of the muscles)

A 
Cricothyroid (tensor of vocal cords)
Thyroarytenoid - relaxor of vocal folds
Lateral cricoarytenoid - adductor
Transverse arytenoid - adductor
Posterior cricoarytenoid - abductor
45
Q

nerve supply of all intrinsic muscles of larynx except cricothyroid

A

Recurrent laryngeal nerve

46
Q

Nerve supply of cricothyroid

A

External laryngeal nerve

Lansang Notes (2 decks)

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