Neck Veins Anatomy

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Atlas of the anatomy of the head and neck on a ct in axial coronal and sagittal sections and 3d images.

Neck veins anatomy. It runs down the side of the neck in a vertical direction lying at first lateral to the internal carotid artery and then lateral to the common carotid and at the root of the neck unites with the subclavian vein to form the innominate vein. Neck in land vertebrates the portion of the body joining the head to the shoulders and chest. When a person is angry or severely irritated you may notice that the veins in their neck are protruding.

Some important structures contained in or passing through the neck include the seven cervical vertebrae and enclosed spinal cord the jugular veins and carotid arteries part of the esophagus the larynx and vocal cords and the sternocleidomastoid and hyoid muscles in front and the trapezius and other nuchal muscles behind. In the neck the internal jugular vein descends within the carotid sheath deep to the sternocleidomastoid muscle and lateral to the common carotid artery. The inner portions of the tooth consist of the dentin a bonelike tissue and the pulp.

Immediately prior to this the inferior end of internal jugular vein dilates to form the inferior bulb. A little above its termination is a second dilatation the inferior bulb. These veins are called jugular veins and they measure circulatory pressure.

At the base of the neck posteriorly to the sternal end of the clavicle the ijv combines with the subclavian vein to form the brachiocephalic vein. As the tooth tapers below the gumline the neck is formed. In the head superficial structures on the exterior of the skull are drained by the pair of external jugular veins which descend through the neck lateral to the vertebral veins.

The left and right vertebral veins descend through the transverse foramina of the cervical vertebrae to drain blood from the spinal cord cervical vertebrae and muscles of the neck. One of the functions of the neck is to act as a conduit for nerves and vessels between the head and the trunk. Distended neck veins occur when there are issues concerning the heart and lungs.

This blood returns to the trunk through large jugular veins. Below the neck holding the tooth into the bone is the root of the tooth. The more severe the condition the higher the veins extend from the neck.

The carotid and vertebral arteries which travel through the area carry high volumes of blood to meet the high metabolic requirements of the brain. Venous anatomy starts with a thick outer layer of connective tissue called the tunica externa or adventitia a middle layer of smooth muscle called the tunica media and an interior layer of endothelial cells called the tunica intima.

The Veins Of The Neck Human Anatomy