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Head and Neck > Thyroid And Parathyroid Gland > Flashcards

Thyroid And Parathyroid Gland Flashcards

1
Q

Thyroid gland is located where

A

In the midline of the ant part of the neck
Extends from C5 to T1

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2
Q

Where does the thyroid gland crosses the midline of the upper part of the trachea

A

At the 2nd and 3rd tracheal rings

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3
Q

Thyroid gland lies post to what muscles

A

Sternothyroid

Sternohyoid

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4
Q

Thyroid gland surrounds what

A

Cricoid cartilage and tracheal rings

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5
Q

Thyroid gland lies inf to

A

Thyroid cartilage

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6
Q

Thyroid gland is attached to trachea by

A

Lat suspensory ligament or Berry’s ligament

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7
Q

Thyroid gland is divided into two lobes and connected by what inferomedially

A

Isthmus

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8
Q

Location of isthmus of thyroid gland

A

Above 2nd or 3rd tracheal cartilage

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9
Q

The extra pyramidal lobe of the thyroid gland arises from what lobe

A

Left lobe

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10
Q

Levator glandular thyroidae connects the pyramidal lobe to

A

Hyoid bone

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11
Q

The levator glandular thyroidae is what

A

A connective tissue band

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12
Q

Arterial supply of thyroid gland

A

Superior thyroid artery
Inferior thyroid artery

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13
Q

The thyroid I’ma artery is present in

A

Small percentage of people

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14
Q

Thyroid I’ma artery supplies

A

Isthmus
Ant thyroid gland

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15
Q

Thyroid I’ma artery arises from

A

Bracgiocephalic trunk most of the time

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16
Q

Thyroid I’ma artery can also arise from

A

Aortic arch
ECA
Subclavian
Thyrocervical trunk
ITA

17
Q

Venous drainage of thyroid gland

A

Sup, Mid, Inf thyroid vein

18
Q

Sup and mid thyroid vein drain into

A

IJV

19
Q

INF thyroid vein drains into

A

Subclavian or brachiocephalic vein

20
Q

Lymphatic drainage of thyroid gland

A

Prelaryngeal cervical

Pretracheal

Paratracheal

21
Q

Innervation of thyroid gland

A

Inf, mid and sup ganglia of sympathetic trunk

Left and right recurrent laryngeal nerves

Sup laryngeal nerve

22
Q

Sup laryngeal nerve is located where

A

At sup pole of thyroid gland

23
Q

Lt and rt recurrent laryngeal nerves are located

A

Lat part of thyroid gland close to inf thyroid artery

24
Q

Damage to recurrent laryngeal nerve can result to

A

Vocal cord paralysis

25
Q

Damage to cervical sympathetic trunk can result in

A

Horner syndrome

26
Q

Damage to sup laryngeal nerve can result in

A

Dysphonia

27
Q

Thyroidectomy

A

Surgical removal of all or part of thyroid gland

28
Q

Common site of ectopic thyroid gland

A

Base of tongue

29
Q

Goitre

A

Excessive enlargement of thyroid gland

30
Q

Location of parathyroid glands

A

Post aspect of thyroid glands

31
Q

How many parathyroid glands are there

A

4

32
Q

The 2 sup parathyroid glands are located where

A

Middle of post border of each thyroid lobe

33
Q

The two inf parathyroid glands are located where

A

Close to INF poles of thyroid glands

34
Q

Venous drainage of parathyroid gland

A

Inf, Mid, Sup thyroid veins

35
Q

Arterial supply of parathyroid gland

A

Inferior thyroid artery

Collateral supply from Sup thyroid artery and thyroid ima artery

36
Q

Innervation of PTG

A

Thyroid branches of cervical ganglia

37
Q

Lymphatic drainage of PTG

A

Pretracheal
Deep cervical

Head and Neck (12 decks)

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