The Neck

Question 1

what are the limits of the neck

Answer 1

superior limit = mandible/ base of skull

inferior limit = thoracic inlet

Question 2

what divides the neck into its anterior and posterior portions

Answer 2

sternocleidomastoid muscle

Question 3

what are the boundaries of the anterior triangle of the neck

Answer 3

sternocleidomastoid
midline
mandible

Question 4

what are the boundaries of the posterior triangle of the neck

Answer 4

sternocleidomastoid
trapezius
middle third of clavicle

Question 5

where are the attachment points of the sternocleidomastoid

Answer 5

proximal = mastoid process (bony bit behind ear) 
distal = sternum and clavicle

Question 6

what muscles are in the anterior triangle of the neck

Answer 6

mylohyoid - floor of the mouth
anterior belly of digastric
infrahyoids (strap muscles) - 4

Question 7

thyroid vs cricoid cartilage

Answer 7

both within anterior triangle of neck
thyroid = largest laryngeal cartilage
cricoid = just below thyroid cartilage, only full ring of tracheal cartilage

Question 8

hyoid bone

Answer 8

situated at root of tongue
not joined to any other bones
anterior triangle

Question 9

isthmus

Answer 9

thyroid tissue connecting the left and right lobes of the thyroid gland

Question 10

what glands are found in the anterior triangle of the neck

Answer 10

thyroid
parathyroid
submandibular

Question 11

what nerve supplies the sternocleidomastoid and trapezius muscle

Answer 11

accessory nerve CN XI

runs through posterior triangle