6: Anatomy of the thyroid gland Flashcards Preview

Endocrine Week 1 2017/18 > 6: Anatomy of the thyroid gland > Flashcards

Flashcards in 6: Anatomy of the thyroid gland Deck (63)
Loading flashcards...
1

Which parts of the respiratory tract is the thyroid gland closely associated with?

Larynx

Trachea

2

Which general part of the body is the thyroid gland found in?

Neck

3

What are the three parts of the thyroid gland found in all people?

Isthmus

Left and right lateral lobes

4

What are the three cartilages found in the anterior neck?

Thyroid cartilage

Cricoid cartilage

Trachea

5

The isthmus lies anterior to which tracheal "rings"?

2nd and 3rd

6

An enlarged thyroid will move ___ then ___ during swallowing.

(inferiorly , superiorly)

superiorly then inferiorly

7

What is an abnormal swelling of the thyroid gland called?

Goitre

8

Which cartilage is found in the posterior larynx?

Arytenoid cartilages

9

Where exactly are the parathyroid glands found?

Posterior surface of lateral lobes

10

What is a common variant structure of the thyroid gland?

Where is it found?

Which bone may it connect to?

Pyramidal lobe

Anterior surface of larynx, midline extending upwards from isthmus to thyroid cartilage

Hyoid bone

 

11

Where generally does the thyroid gland originate during embryological development?

Tongue

12

During development, the thyroid gland is found between the __ 2/3rds and __ 1/3rd of tongue.

What is this junction called?

What hole is found in the junction?

anterior 2/3rds, posterior 1/3rd

terminal sulcus

foramen caecum

13

During development, the thyroid gland migrates inferiorly through what?

Thyroglossal duct

14

What can form if remnants of thyroid tissue remain in the thyroglossal duct?

Pyramidal lobe

Nodules

15

Just as in the upper and lower limbs, the neck has ___ containing different structures.

compartments

16

What superficial muscles are found in the outer layer of neck skin?

Platysma

17

Platysma are muscles of ___ ___ and are therefore innervated by CN __.

facial expression

CN VII - facial nerve

18

Apart from the platysma muscles, what are two other muscles of facial expression?

Frontalis

Orbicularis oculi

Orbicularis oris

there are literally millions

19

The neck has four fascial compartments - what are they called?

Investing fascia

Prevertebral fascia

Carotid sheathes

Pretracheal fascia

20

The investing fascia is most superficial and surrounds all the other fascial compartments of the neck.

Which two pairs of muscles are found in the investing fascia?

Trapezius

Sternocleidomastoid

21

What is found in the prevertebral fascia?

Postural neck muscles

Cervical vertebrae

22

Which structures are found in the carotid sheathes?

Vagus nerves

Common then Internal carotid arteries

Internal jugular veins

Deep cervical lymph nodes

23

What five structures are found within the pretracheal fascia?

Trachea

Oesophagus

Thyroid

Strap muscles

Recurrent laryngeal nerves (branches of the vagus nerve)

24

Which nerve supplies the muscles of the investing fascia (trapezius and sternocleidomastoid)?

CN XI - spinal accessory nerve

25

The SCM has two heads - what are they called?

Sternal head

Clavicular head

26

Which part of the sternum does the SCM attach to?

Manubrium

27

The clavicular head of the SCM attaches to the (medial / lateral) end of the clavicle.

medial

28

What is the superior attachment of the SCM?

Mastoid process of the temporal bone

29

What does the trapezius attach to inferiorly?

Spine of scapula

Lateral end of clavicle

30

What are the three jugular veins found in the neck?

External

Internal

Anterior