GROSS ANATOMY
CRANIAL NERVES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Cranial Nerve VIII
|
|
|
Cranial Nerve IX
|
|
|
Cranial Nerve X
|
|
|
Cranial Nerve XI
|
Detailed explanation-1: -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.
Detailed explanation-2: -Intradurally, the glossopharyngeal, vagus, and accessory nerves leave the intracranial compartment through the jugular foramen. These nerves leave the medulla and upper cervical spinal cord and transverse the lateral cerebellomedullary cistern before entering the jugular foramen (Figure 6).
Detailed explanation-3: -Cranial nerves supply sensory and motor information to structures of the head and neck, controlling the activity of this region. Only the vagus nerve extends beyond the neck, to innervate thoracic and abdominal viscera.