What is retromandibular vein?
What is retromandibular vein?
The retromandibular vein, also known as the posterior facial vein, is a deep vein of the face that is formed by the merger of the superficial temporal vein with the maxillary vein. It runs within the substance of the parotid gland, descending posterior to the ramus of the mandible.
Where is the retromandibular vein located?
parotid
The retromandibular vein is formed, usually within the parotid, by the confluence of the maxillary vein and the superficial temporal vein. It lies deep to the facial nerve and superficial to the external carotid artery.
What is the angular vein?
The angular vein is the upper most segment of the facial vein, above its junction with the superior labial vein. It is formed by the junction of the supratrochlear vein and supraorbital vein, runs obliquely downward by the side of the nose, passes under zygomaticus major and joins with the superior labial vein.
What is external jugular vein?
The external jugular vein is a superficial vein of the neck that drains blood from the parotid gland, most of the scalp, and side of the face, then back to the heart. It also assists with blood flow down from the head when other major veins, like the internal jugular vein, are compressed or blocked.
What drains in retromandibular vein?
The retromandibular vein divides into two branches: anterior: joins the (anterior) facial vein, forming the common facial vein which drains into the internal jugular vein. posterior: joins the posterior auricular vein, forming the external jugular vein.
What is the facial vein?
The facial vein (or anterior facial vein) is a relatively large vein in the human face. It commences at the side of the root of the nose and is a direct continuation of the angular vein where it also receives a small nasal branch. It lies behind the facial artery and follows a less tortuous course.
What is parotid bed?
1. The parotid bed is an irregular space located between the ramus of the mandible, the external acoustic meatus and the mastoid and styloid processes, the digastric muscles, and sternocleidomastoid muscle.
What does the angular vein do?
The angular vein collects venous blood from the nose, and the lower and upper eyelids.
Where does the angular vein drain?
The angular vein drains the anterior region of the scalp 1. It is formed by the union of the supratrochlear and supraorbital veins and becomes the facial vein 1,2,3.
What causes external jugular vein?
The blood flow from the head to the heart is measured by central venous pressure or CVP. Jugular vein distention or JVD is when the increased pressure of the superior vena cava causes the jugular vein to bulge, making it most visible on the right side of a person’s neck.
Where does external jugular vein supply?
The external jugular vein receives the greater part of the blood from the exterior of the cranium and the deep parts of the face, being formed by the junction of the posterior division of the retromandibular vein with the posterior auricular vein.
What is the main vein that drains the brain?
The internal jugular vein is a major blood vessel that drains blood from important body organs and parts, such as the brain, face, and neck.
Where is the retromandibular vein located in the face?
The retromandibular vein, also known as the posterior facial vein, is a deep vein of the face that is formed by the merger of the superficial temporal vein with the maxillary vein. It runs within the substance of the parotid gland, descending posterior to the ramus of the mandible.
How is the retromandibular gland related to the auricular vein?
Relatively often, the retromandibular gland does not establish a connection with the posterior auricular vein to form the external jugular vein. In these cases, the external jugular vein is small, while the anterior jugular vein is reciprocally enlarged.
Where are the lymph nodes located in the retromandibular vein?
Intraglandular lymph nodes are situated deep within the parotid, around the retromandibular vein and the external carotid artery. Subcapsular nodes are found in the subcapsular region of the gland, commonly in the pre-tragal region anteriorly, and the tail of parotid gland posteriorly (Fig. 46.5).
Where is the jugular vein in the ear?
vein formed by the union of the superficial temporal and maxillary veins in front of the ear; it runs posterior to the ramus of the mandible through the parotid gland, and unites with the posterior auricular vein to form the external jugular vein; it usually has a large communicating branch with the facial vein.
