Anterior of the Neck Flashcards
Transverse process of C6; lateral to cricoid cartilage; where pulsations of common carotid artery can be felt
Carotid tubercle
Nerve supply of the platysma
Cervical branch of the facial nerve
Supplies the skin over the lateral part of the occipital region & medial surface of the auricle
Lesser occipital nerve
Supplies the skin over the angle of the mandible, parotid gland, & both surfaces of the auricle
Great auricular nerve
Supplies the skin from the body of the mandible to the sternum
Transverse cutaneous nerve
External jugular vein is formed by the union of the:
Posterior auricular vein & posterior division of the retromandibular vein
Thyrohyoid is supplied by ___ via the hypoglossal nerve.
C1
ANTERIOR TRIANGLE: formed by 2 anterior bellies of the digastric muscle & upper margin of the hyoid bone
Submental triangle
Layer which encloses the neck and splits the sternocleidomastoid and trapezius muscle
Investing layer
Superior boundary of the investing layer
Hyoid bone and lower border of mandible
Layer which binds to the posteriorly located trachea and larynx
Pretracheal layer
Also known as the “dangerous layer of the neck”
Pretracheal layer
Thick layer which forms the fascial floor of the posterior triangle; forms the axillary sheath
Prevertebral layer
The common carotid artery terminates at the:
Superior border of the thyroid cartilage
The right CCA originates from the:
Brachiocephalic artery
The left CCA commences at the:
Superior mediastinum
Reflex area of the carotid; baroregulator
Carotid sinus
Located at the bifurcation of the external and internal carotid arteries; chemoreceptor
Carotid body
Twists anteriorly to pierce the floor of the mouth to supply motor fibers to the lingual muscles
Hypoglossal nerve
Emerges from the anterior surface of the medulla oblongata between the olive and the inferior cerebellar peduncle
Vagus nerve
Supplies the infrahyoid strap muscles; formed by the cervical nerves via C1 fibers leaving the hypoglossal nerve
Ansa cervicalis
The nerve supply of the submandibular gland are parasympathetic secretomotor fibers from ___ via chorda tympani and ____.
Facial nerve (VII); submandibular ganglion
The inferior thyroid artery originates from:
Thyrocervical trunk of the subclavian artery
TRUE OR FALSE: 2 superior parathyroid glands lie in the middle of the anterior border of the thyroid gland.
FALSE
Posterior border
Nerve supply of the parathyroid gland
Superior & middle cervical sympathetic ganglia
ANTERIOR TRIANGLE: contains the submandibular gland & ECA
Digastric triangle
The carotid triangle is formed by the posterior belly of the digastric muscle, superior belly of the ____, & and anterior margin of the SCM.
Omohyoid
ANTERIOR TRIANGLE: contains the thyroid & parathyroid glands
Muscular triangle
