Search results
Results from the WOW.Com Content Network
The foramen magnum (Latin: great hole) is a large, oval-shaped opening in the occipital bone of the skull. It is one of the several oval or circular openings (foramina) in the base of the skull . The spinal cord , an extension of the medulla oblongata , passes through the foramen magnum as it exits the cranial cavity .
552. FMA. 52735. Anatomical terms of bone. [edit on Wikidata] The occipital bone (/ ˌɒkˈsɪpɪtəl /) is a cranial dermal bone and the main bone of the occiput (back and lower part of the skull). It is trapezoidal in shape and curved on itself like a shallow dish. The occipital bone overlies the occipital lobes of the cerebrum.
The Posterior cranial fossa is colored in blue, yellow, and red. The posterior cranial fossa is the part of the cranial cavity located between the foramen magnum, and tentorium cerebelli. It is formed by the sphenoid bones, temporal bones, and occipital bone. It lodges the cerebellum, and parts of the brainstem.
e. The hypoglossal nerve, also known as the twelfth cranial nerve, cranial nerve XII, or simply CN XII, is a cranial nerve that innervates all the extrinsic and intrinsic muscles of the tongue except for the palatoglossus, which is innervated by the vagus nerve. [a] CN XII is a nerve with a sole motor function.
Medulla oblongata Medulla-animated as it protrudes from the foramen magnum of the skull-base, after which it gives rise to the spinal cord. The medulla can be thought of as being in two parts: an upper open part or superior part where the dorsal surface of the medulla is formed by the fourth ventricle.
In human anatomy, the neurocranium, also known as the braincase, brainpan, or brain-pan, [ 1 ][ 2 ] is the upper and back part of the skull, which forms a protective case around the brain. [ 3 ] In the human skull, the neurocranium includes the calvaria or skullcap. The remainder of the skull is the facial skeleton.
The formed nerve enters the skull through the foramen magnum, the large opening at the skull's base. [1] The nerve travels along the inner wall of the skull towards the jugular foramen. [1] Leaving the skull, the nerve travels through the jugular foramen with the glossopharyngeal and vagus nerves. [8]
50781. Anatomical terminology. [edit on Wikidata] The occipital sinus is the smallest of the dural venous sinuses. It is usually unpaired, and is sometimes altogether absent. It is situated in the attached margin of the falx cerebelli. It commences near the foramen magnum, and ends by draining into the confluence of sinuses.