The structures that traverse the jugular foramen are the sigmoid sinus and jugular bulb, the inferior petrosal sinus, meningeal branches of the ascending pharyngeal and occipital arteries, the glossopharyngeal, vagus, and accessory nerves with their ganglia, the tympanic branch of the glossopharyngeal nerve (Jacobson’s … What is the function of the jugular foramen?
Structure and Function The jugular foramen is a cavity formed by the petrous part of the temporal bone anteriorly and the occipital bone posteriorly. Its major function is to act as a conduit for essential structures to pass through.
What passes through the jugular foramen quizlet?
the jugular foramen along with the glossopharyngeal nerve (IX), one other nerve (XI) and vein (internal jugular vein). the jugular foramen with glossopharyngeal nerve, vagus nerve, and one vein, the internal jugular vein. the hypoglossal canal (hole near margin of foramen magnum through which cranial nerve XII passes. What is a jugular foramen in anatomy?
56432. Anatomical terminology. A jugular foramen is one of the two (left and right) large foramina (openings) in the base of the skull, located behind the carotid canal. It is formed by the temporal bone and the occipital bone.
What is the jugular bulb?
The jugular bulb (JB) is the confluence of the lateral venous sinuses situated in the jugular fossa. It drains extracranially to the internal jugular vein as it passes through the jugular foramen of the posterior cranial fossa. The precise location of this structure within the temporal bone is variable. Where does the jugular vein pass through?
jugular vein, any of several veins of the neck that drain blood from the brain, face, and neck, returning it to the heart via the superior vena cava.
Frequently Asked Questions(FAQ)
Where does the jugular vein exit the skull?
jugular foramen The internal jugular vein is a run-off of the sigmoid sinus. It arises in the posterior cranial fossa and exits the cranium through the jugular foramen, located at the base of the skull.
Which of the following does not pass through the jugular foramen?
The hypoglossal nerve does not traverse the jugular foramen; however, it joins the nerves exiting the jugular foramen just below the skull base and runs with them in the carotid sheath.
What nerve is transmitted in Stylomastoid foramen?
It is located on the inferior surface of the petrous temporal bone, between the base of the styloid process and the mastoid process of the temporal bone. It transmits the facial nerve and stylomastoid artery (branch of posterior auricular artery).
What exits the Stylomastoid foramen?
The facial nerve exits the skull from the stylomastoid foramen and passes obliquely inferiorly and laterally until it enters the parotid gland. The common facial divisions of the nerve are the temporal, zygomatic, buccal, marginal mandibular, and cervical divisions.
What typically passes through a foramen?
What passes through supraorbital foramen?
The supraorbital foramen or notch is the small opening at the central edge of the superior orbital margin in the frontal bone just below the superciliary arches that transmits the supra-orbital nerve, artery and vein.
What passes thru foramen magnum?
The spinal cord, an extension of the medulla oblongata, passes through the foramen magnum as it exits the cranial cavity.
What goes through hypoglossal canal?
Function. The hypoglossal canal transmits the hypoglossal nerve from its point of entry near the medulla oblongata to its exit from the base of the skull near the jugular foramen.
What is the hypoglossal?
The hypoglossal nerve enables tongue movement. It controls the hyoglossus, intrinsic, genioglossus and styloglossus muscles. These muscles help you speak, swallow and move substances around in your mouth.
What does a high riding jugular bulb mean?
High riding jugular bulb is defined as an extension of the most cephalad portion of the Jugular bulb superior to the floor of the internal auditory canal or it can projects above the basal turn of the cochlea [2]. It could also be a diverticulum arising from the Jugular bulb.
Can a high riding jugular bulb be fixed?
Tinnitus and hearing loss can occur in patients with a high-riding abnormal jugular bulb. Jugular vein ligation in selected patients can cure tinnitus and reverse hearing loss.
What does JVD mean?
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.
What does the jugular vein connected to?
The jugular veins are veins that take deoxygenated blood from the head back to the heart via the superior vena cava. …
| Jugular vein | |
|---|---|
| System | Circulatory system |
| Drains from | Head |
| Drains to | Superior vena cava |
| Identifiers |
Is the jugular on the left or right?
Internal and external jugular veins run along the right and left sides of your neck. They bring blood from your head to the superior vena cava, which is the largest vein in the upper body.
Is jugular a vein or artery?
The internal jugular vein is a paired jugular vein that collects blood from the brain and the superficial parts of the face and neck. …
| Internal jugular vein | |
|---|---|
| Source | Sigmoid sinus and Inferior petrosal sinus |
| Drains to | brachiocephalic vein |
| Artery | internal carotid, common carotid |
| Identifiers |
Where does the internal jugular vein start and end?
The internal jugular vein (IJV) is a paired vessel found within the carotid sheath on either side of the neck. It extends from the base of the skull to the sternal end of the clavicle.
What is magnum foramen?
The foramen magnum is the largest foramen of the skull. It is located in the most inferior portion of the cranial fossa as a part of the occipital bone. … On the foramen magnum, there are two craniometric points: the basion, the median point of the front edge of the hole, and the opisthion, posterior correspondence.
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