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Anatomy 204 > Thyroid and Parathyroid Glands > Flashcards

Thyroid and Parathyroid Glands Flashcards

1
Q

Layers of the deep fascia or deep cervical fascia of the neck?

A

“Investing layer
“Pretracheal layer
“Prevertebral layer

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2
Q

Thyroid gland is a ______-shaped, ______ gland

A

Butterfly-shaped
Endocrine

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3
Q

It has ___ lobes; ____ & _____ lobes which we connected to each other by a narrow ____, which overlies the ___,___,___ tracheal rings.

A

Two
Right and Left
Isthmus
2nd,3rd,4th

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4
Q

Thyroid gland is surrounded by a fascial sheath derived from the _____ of the deep cervical fascia.

A

Pre-tracheal layer

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5
Q

Each lobe of the thyroid gland is ____- shaped with it’s apex each reaching up to the ____ of the thyroid cartilage. It’s base lies at the level of ____ or ____ tracheal rings.

A

Pear-shaped
Oblique line
4th or 5th

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6
Q

Inside the pretracheal fascial capsule, there’s another capsule. So the thyroid gland is surrounded by ___ membranes.

A

Two

This second capsule is the CAPSULE OF THE THYROID GLAND.

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7
Q

The 3rd small _____ lobe is ___ present which projects from the ___ border of the _____ slightly to the ____ of the middle like.

A

Pyramidal
Often
Upper
Isthmus
Left

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8
Q

The pyramidal lobe is connected to the _____ bone by a ____/ muscular band called ____. This represents the fibrosed and obliterated remnant of the ______ .

A

Hyoid
Fibrous
Levator Glandulae Thyroidae
obliterated
Thyroglossal duct

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9
Q

Concerning the relations of the thyroid gland:
Anterolaterally:
(Hint: 4 S muscles)

A

Sternothyroid
Sternohyoid
Superior belly of omohyoid muscle
Sternocleidomastoid

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10
Q

Concerning the relations of the thyroid gland:
Posteriorly:

A

Carotid sheath and it’s contents

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11
Q

Concerning the relations of the thyroid gland:
Medially; Above:
Below:

A

Above: Pharynx and Larynx
Below: Trachea and Esophagus

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12
Q

Recurrent laryngeal nerve is between ______ and ____

A

Cricrothyroid muscle
External laryngeal nerve

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13
Q

The rounder posterior border of the thyroid gland is related to:

A

“Superior and Inferior Parathyroid glands
“Anastomoses between the superior and inferior thyroid arteries

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14
Q

Arterial Supply to the thyroid gland is by:

A

Superior thyroid artery
Thyroidea Imae Artery
Inferior thyroid artery

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15
Q

Superior thyroid artery is a branch from ______. It descends from the upper pole of the lobe with the ____. It runs along the upper border of the isthmus to anastomose with ____

A

External Carotid Artery
External Laryngeal Nerve
Inferior thyroid artery

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16
Q

Thyroidae Imae Artery if present arises from the ___ or _____. It ascends in front of the trachea to reach the ____.

A

Aortic arch or brachiocephalic artery.
Isthmus

17
Q

Inferior thyroid artery is from the ______ of the ____ part of the subclavian artery. It ascends behind the gland to the level of the _____ . Then it curves medially beneath the ____. Then it reaches the posterior aspect of the gland and descends downwards.
NB: The recurrent laryngeal Nerve crosses either behind or in front of it.

A

Thyrocervical trunk
1st
Cricoid cartilage
Carotid sheath

18
Q

Veins of Thyroid gland:

A

Superior thyroid gland»» Internal Jugular Vein
Middle thyroid gland»> Internal Jugular Vein
Inferior thyroid gland»> Left brachiocephalic vein

19
Q

Lymph node of the Thyroid gland:

A

Deep cervical lymph nodes
Pre-tracheal lymph nodes

20
Q

Parathyroid glands are ___ small ___ bodies about ___ long. They lie within the ____ of the gland between the two membranes. The two superior parathyroid glands have a ____ position at the ____ of the posterior border of thyroid. The two inferior parathyroid glands are at the level of the ____ pole of the thyroid.

A

Four,
ovoid,
6mm
Fascial capsule
Constant, middle
Inferior

21
Q

They lie within the thyroid tissue or sometimes outside the fascial capsule.
True/False

A

True

22
Q

The superior and inferior parathyroid glands are supplied by ____ and _____.

A

Superior and inferior thyroid arteries

23
Q

Their veins are drained to the ____, ____ and _____.

A

Superior, middle and inferior thyroid veins.

24
Q

Their lymph nodes are:

A

Deep cervical lymph nodes
Pre-tracheal lymph nodes

25
Q

Nerve Supply of Parathyroid glands:

A

Superior and middle cervical sympathetic ganglia.

Anatomy 204 (5 decks)

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