Anterior Triangle Of The Neck

Question 1

What triangles are found within the neck

Answer 1

Anterior and posterior triangles

Question 2

What defines the triangles

Answer 2

The sternocledomastoid (SCM)

Question 3

What are the four division of the anterior triangle

Answer 3

the sub-mental, sub-mandibular, carotid and muscular

Question 4

What is within the sub-mental division

Answer 4

Sub-mental lymph nodes and the beginning of the jugular vein

Question 5

What is within the submandibular division

Answer 5

Submandibular salivary glands, lymph nodes, facial artery and vein, carotid sheath and hypoglossal nerve

Question 6

What is within the carotid division

Answer 6

The carotid sheath, branches of the external carotid artery, internal jugular vein, hypoglossal, accessory and vagus nerves

Question 7

What forms the floor of the muscular

Answer 7

The sternohyoid and sternothyroid

Question 8

What it within the muscular

Answer 8

Thyroid gland, larynx, trachea and oesophagus

Question 9

Where is the platysma muscle found

Answer 9

In the anterior triangle

Question 10

Attachment of the platysma

Answer 10

Fascia above pectoralis major and the clavicle of the lateral neck

Question 11

Insertion of platysma

Answer 11

Mandible

Question 12

Innervation of platysma

Answer 12

Facial nerve (CN VII)

Question 13

Where is the internal jugular vein found

Answer 13

Posterior to the SCM

Question 14

What is the cervical plexus composed of

Answer 14

Anterior rami of C1-C4

Question 15

Where do the loops of the cervical plexus lie

Answer 15

anterior to levator scapulae and scalene medius

Question 16

What covers the cervical plexus

Answer 16

A layer of pre-vertebral deep cervical fascia

Question 17

What does the cervical plexus provide

Answer 17

Somatic motor and sensory innervation and sympathetic innervation

Question 18

What is between the hyoid bone and the skull/mandible

Answer 18

The suprahyoid area

Question 19

What is between the hyoid bone and the sternum/thyroid cartilage

Answer 19

The infrahyoid area

Question 20

What are the suprahyoid muscles

Answer 20

The stylohyoid, anterior and posterio bellies of digastric, geniohyoid and mylohyoid

Question 21

What is the function of the mylohyoid and digastric

Answer 21

Raise the hyoid bone/depress the mandible

Question 22

What are the posterior belly of digastric and stylohyoid innervated by

Answer 22

The facial nerve

Question 23

What is the anterior belly of digastric and the mylohyoid innervated by

Answer 23

The mandibular division of the trigeminal nerve

Question 24

What is the geniohyoid innervated by

Answer 24

C1 via the hypoglossal

Question 25

What are the infrahyoid muscles

Answer 25

omohyoid, sternohyoid, thryohyoid and sternothyroid

Question 26

What is the function of the infrahyoid muscles

Answer 26

Depress the hyoid bone/thyroid cartilage

Question 27

What innervated the infrahyoid muscles

Answer 27

Ansa cervicalis

Question 28

Which infrahyoid muscle is not innervated by the ansa cervicalis and what does innervate it

Answer 28

Thryohyoid and C1 via the hypoglossal

Question 29

Where do the left and right carotid arteries come from

Answer 29

Left - arch of aorta | Right - brachiocephallic

Question 30

What does the common carotid bifurcate to give

Answer 30

The internal and external carotids

Question 31

What does the internal carotid supply

Answer 31

The brain

Question 32

What does the external carotid supply

Answer 32

The head, face and neck

Question 33

What is within the carotid sheath

Answer 33

The common carotid, external jugular vein and vagus nerve

Question 34

What three branches of the external carotid are within the anterior triangle

Answer 34

The superior thyroid, lingual and facial

Question 35

What are other arteries within the anterior triangle

Answer 35

The inferior thyroid, vertebral, thyrocervical trunk, transverse cervical, supra scapular, internal thoracic and branches from the subclavian

Question 36

What branches does the vagus nerve give off

Answer 36

Recurrent laryngeal branches, internal and external laryngeal branches

Question 37

What is the thyroid gland

Answer 37

An endocrine structure that regulates metabolism

Question 38

What is the thyroid composed of

Answer 38

2 lobe, an isthum and a capsule

Question 39

Where does the thyroid run from/to

Answer 39

The lamina of the thyroid cartilage to the 6th tracheal ring

Question 40

Where are the parathyroid glands

Answer 40

Embedded on the surface of the thyroid gland

Question 41

What supplies the thyroid

Answer 41

Superior and inferior thyroid artery

Question 42

What drains the thyroid

Answer 42

Superior, middle and inferior thyroid veins

Question 43

Where do the left and right inferior thyroid veins drain into

Answer 43

The brachiocephalic vein

Question 44

What innervates the submandibular salivary gland

Answer 44

The facial nerve

Question 45

Where do the ducts from the submandibular salivary gland open into

Answer 45

Between the first and second incisor