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The thyrocervical trunks are very small arteries of the neck arising from the subclavian arteries, lateral to the vertebral arteries. [1] They divide into branches: the inferior thyroid artery, suprascapular artery, and the transverse cervical artery. The thyrocervical trunks supply the thyroid gland and some scapular muscles. [1]
The inferior thyroid artery is an artery in the neck. It arises from the thyrocervical trunk and passes upward, in front of the vertebral artery and longus colli muscle . It then turns medially behind the carotid sheath and its contents, and also behind the sympathetic trunk , the middle cervical ganglion resting upon the vessel.
Anatomy figure: 25:01-03 at Human Anatomy Online, SUNY Downstate Medical Center - "Identification of the subdivsions of the anterior triangle and corresponding borders." Anatomy photo:25:19-0101 at the SUNY Downstate Medical Center - "Anterior Triangle of the Neck: The Submental Triangle"
Superficial dissection of the right side of the neck, showing the carotid and subclavian arteries. The fascia and middle thyroid veins. Hypoglossal nerve, cervical plexus, and their branches.
Thyroid cancer accounts for less than 1% of cancer cases and deaths in the UK. Around 2,700 people were diagnosed with thyroid cancer in the UK in 2011, and around 370 people died from the disease in 2012. [69] However, in South Korea, thyroid cancer was the 5th most prevalent cancer, which accounted for 7.7% of new cancer cases in 2020. [70]
The head and neck are emptied of blood by the subclavian vein and jugular vein. Right side of neck dissection showing the brachiocephalic, right common carotid artery and its branches. The brachiocephalic artery or trunk is the first and largest artery that branches to form the right common carotid artery and the right subclavian artery.
The dorsal scapular artery (or descending scapular artery [3]) is a blood vessel which supplies the levator scapulae, rhomboids, [4] and trapezius.. It most frequently arises from the subclavian artery (the second or third part), [3] but a quarter of the time it arises from the transverse cervical artery. [5]
The thyrohyoid muscle is a small skeletal muscle of the neck. Above, it attaches onto the greater cornu of the hyoid bone ; below, it attaches onto the oblique line of the thyroid cartilage . It is innervated by fibres derived from the cervical spinal nerve 1 that run with the hypoglossal nerve (CN XII) to reach this muscle.