The Organization of the Neck III Flashcards Preview

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Flashcards in The Organization of the Neck III Deck (16):
1

the thyroid & parathyroid glands:
thyroid gland:

two large lobes of the thyroid gland lie anterolateral to the ___ & ___

the ___ unites them across the front of the ___ immediately below the ___

trachea
larynx

isthmus
trachea
larynx

2

the thyroid & parathyroid glands:
thyroid gland:

sometimes a pointed process, the ___, points upward from the isthmus, usually close to the anterior midline

this may attach by connective tissue to the ___ cartilage or may even extend up to attach to the ___ bone

on the posterior surface, the lobes of the thyroid are attached by dense connective tissue to the ___ cartilage & several of the upper ___

pyramidal lobe

thyroid
hyoid

cricoid
tracheal rings

3

the thyroid & parathyroid glands:
blood supply of the thyroid gland:
superior thyroid artery:

first (anterior/posterior) branch of the ___ artery

after giving off the ___ artery, passes downward running superficial & parallel to the ___ nerve

it reaches the superior pole of the thyroid gland & divides into ___ & ___ branches

anterior
external carotid

superior laryngeal
external laryngeal

anterior
posterior

4

the thyroid & parathyroid glands:
blood supply of the thyroid gland:
superior thyroid artery:

anterior branch - supplies the ___ & ___ surfaces of the gland & anastomses w/ its counterpart from the other side

posterior branch - passes to the posterior side & may anastomose w/ branches of the ___ artery

anterior
superior

inferior thyroid

5

the thyroid & parathyroid glands:
blood supply of the thyroid gland:
inferior thyroid artery:

branch of the ___

runs upward & medially behind the ___ to reach the posterior aspect of the gland

gives off a number of branches including the ___ & ___, which accompanies the ___ nerve to the larynx

thyrocervical trunk

carotid sheath

ascending cervical
inferior laryngeal
recurrent laryngeal

6

the thyroid & parathyroid glands:
blood supply of the thyroid gland:
inferior thyroid artery:

as the inferior thyroid artery passes medially behind the thyroid gland, it becomes closely related to the ___ nerve

since ligature of the thyroid arteries precedes partial or total excision of the gland, this nerve stands in danger of being ___

recurrent laryngeal

accidentally severed or included in a ligature

7

the thyroid & parathyroid glands:
blood supply of the thyroid gland:
inferior thyroid artery:

supplies mainly the (anterior/posterior), (superior/inferior) aspect of the gland

also sends branches to the ___ glands

posterior
inferior

parathyroid

8

the thyroid & parathyroid glands:
blood supply of the thyroid gland:
thyroid ima artery:

presents in approximately ___ % of the population

arises from the ___ or the ___

ascends on the anterior surface of the ___ to supply the thyroid gland

possible presence of this artery must be considered when performing procedures in the ___ of the neck

2-12%

brachiocephalic trunk
arch of the aorta

trachea

midline

9

the thyroid & parathyroid glands:
blood supply of the thyroid gland:
thyroid veins:

superior - accompanies the ___ artery & drains into the ___ vein

middle - drains into the ___ vein

inferior - drains to the ___ veins (sometimes unite into one channel which drains into the ___ vein)

superior thyroid
internal jugular

internal jugular

brachiocephalic
left brachiocephalic

10

the thyroid & parathyroid glands:
blood supply of the thyroid gland:
parathyroid glands:

two pairs of small, ovoid structures on the (superficial/deep) surface of the (medial/lateral) lobes of the thyroid gland

designated ___ & ___ parathyroid glands

number & position of the glands are highly ___

blood supply is mainly from the ___ arteries

deep
lateral

superior
inferior

variable

inferior thyroid

11

introduction to veins of the head & neck:
facial vein:

formed at the medial angle of the ___ by the union of the ___ & ___ veins

as it crosses the mandible, it is joined by the (anterior/posterior) division of the ___ vein forming the ___ vein, which drains into the ___ vein

eye
supraorbital
supratrochlear

anterior
retromandibular
common facial
internal jugular

12

introduction to veins of the head & neck:
superficial temporal vein:

forms on the side of the ___ & follows the ___ artery & ___ nerve

it enters the ___ gland & joins the ___ vein to form the ___ vein

scalp
superficial temporal
auriculotemporal

parotid
maxillary
retromandibular

13

introduction to veins of the head & neck:
maxillary vein:

forms within the ___ fossa from the ___ plexus

infratemporal
pterygoid venous

14

introduction to veins of the head & neck:
retromandibular vein:

formed by the union of the ___ & ___ veins within the substance of the ___ gland

after leaving the inferior pole of the ___ gland, it divides into ___ & ___ divisions

the ___ division joins the ___ vein forming the ___ vein, which drains into the ___ vein

superficial temporal
maxillary
parotid

parotid
anterior
posterior

anterior
facial
common facial
internal jugular

15

introduction to veins of the head & neck:
external jugular vein:

formed behind the angle of the ___ by the union of the ___ vein & the posterior division of the ___ vein

it descends across the ___ muscle & empties into the ___ vein behind the ___

mandible
posterior auricular
retromandibular

sternocleidomastoid
subclavian
clavicle

16

introduction to veins of the head & neck:
anterior jugular vein:

descends in front of the ___ close to the midline

just above the sternum, it is joined to the ___ vein by the ___

it normally empties into the ___ vein deep to the ___ muscle

neck

opposite
jugular arch

external jugular
sternocleidomastoid

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