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The external carotid artery arises from the common carotid artery just inferior to the upper border of the thyroid cartilage. [1]At its origin, this artery is closer to the skin and more medial than the internal carotid, and is situated within the carotid triangle.
Typically, the vertebral arteries originate from the subclavian arteries. Each vessel courses superiorly along each side of the neck, merging within the skull to form the single, midline basilar artery. As the supplying component of the vertebrobasilar vascular system, the vertebral arteries supply blood to the upper spinal cord, brainstem ...
The carotid sheath is a condensation of the deep cervical fascia [1]: 578 enveloping multiple vital neurovascular structures of the neck, [2] including the common and internal carotid arteries, the internal jugular vein, the vagus nerve (CN X), and ansa cervicalis. [1]: 578 [2] The carotid sheath helps protects the structures contained therein. [2]
Anterior ciliary arteries; Anterior communicating artery; Anterior ethmoidal artery; Anterior inferior cerebellar artery; Anterior spinal artery; Anterior superior alveolar artery; Anterior tympanic artery; Anterolateral central arteries; Artery of Percheron; Artery of the pterygoid canal; Ascending palatine artery; Ascending pharyngeal artery
It descends on the posterior aspect of the neck, and divides into a superficial and deep portion. The superficial portion supplies the trapezius muscle and anastomoses with the ascending branch of the transverse cervical. The deep portion anastomoses with the vertebral artery and with the a. profunda cervicalis, a branch of the costocervical trunk.
Superficial dissection of the right side of the neck, showing the carotid and subclavian arteries. At the lower part of the neck, the common carotid artery is very deeply seated, being covered by the integument, superficial fascia, the platysma muscle, deep cervical fascia, the sternocleidomastoid muscle, the sternohyoid, sternothyroid, and the ...
Passing backward, above the eighth cervical nerve and between the transverse process of the seventh cervical vertebra and the neck of the first rib, it runs up the back of the neck, between the semispinalis capitis and semispinalis cervicis, as high as the axis vertebra, supplying these and adjacent muscles, and anastomosing with the deep ...
In the neck, the artery issues branches to the digastric muscle, stylohyoid muscle, sternocleidomastoid muscle, and the parotid gland. [1]In the neck, the posterior auricular artery issues the stylomastoid artery which enters the stylomastoid foramen to provide arterial supply to the facial nerve (CN VII), tympanic cavity, mastoid air cells of the mastoid antrum, and the semicircular canals.