Examples of cranial
vault in the following topics:
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- The cranium protects the brain that is contained in the cranial
vault.
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- The olfactory nerve, or cranial nerve 1, is the first of 12 cranial nerves and is responsible for the sense of smell.
- The olfactory nerve, or cranial nerve I, is the first of the 12 cranial nerves.
- The olfactory nerve is the shortest of the 12 cranial nerves and only one of two cranial nerves (the other being the optic nerve) that do not join with the brainstem.
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- Cranial nerves are the nerves that emerge directly from the brain (including the brainstem).
- The cranial nerves emerge from the central nervous system above this level.
- Each cranial nerve is paired and is present on both sides.
- The cranial nerves are considered components of the peripheral nervous system.
- There are many mnemonic devices to remember the cranial nerves.
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- The trochlear nerve (the fourth cranial nerve) is a motor nerve that innervates a single muscle: the superior oblique muscle of the eye.
- The trochlear nerve is unique among the cranial nerves in several respects.
- *Other than the optic nerve (cranial nerve II), it is the only cranial nerve that decussates (crosses to the other side) before innervating its target.
- *It is the only cranial nerve that exits from the dorsal aspect of the brainstem.
- Lesions of all other cranial nuclei affect the ipsilateral side (except of course the optic nerve, cranial nerve II, which innervate both eyes).
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- The accessory nerve is designated the 11th of 12 cranial nerves and it controls the muscles of the shoulder and neck.
- The accessory nerve is the 11th of 12 cranial nerves and it controls the sternocleidomastoid and trapezius muscles of the shoulder and neck.
- Unlike the other 11 cranial nerves, the accessory nerve begins outside the skull.
- Traditional descriptions of the accessory nerve divide it into two components: a spinal component and a cranial component.
- However, more modern characterizations of the nerve regard the cranial component as separate and part of the vagus nerve.
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- The parts of a vault exert lateral thrust that require a counter resistance.
- When vaults are built underground, the ground gives all the resistance required.
- Buttresses are used to supply resistance when intersecting vaults are employed.
- The inclusion of domes represents a wider sense of the word vault.
- Explain the architectural structure and purpose of arches, vaults, and domes.
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- The oculomoter nerve (cranial nerve III) controls eye movement such as constriction of the pupil and open eyelids.
- The oculomotor nerve is the third paired cranial nerve.
- Cranial nerves IV and VI also participate in control of eye movement.
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- Each cranial nerve has a name .
- Some cranial nerves transmit only sensory information.
- Other cranial nerves transmit almost solely motor information.
- Other cranial nerves contain a mix of sensory and motor fibers.
- Explain the role of the cranial and spinal nerves in the sensory-somatic nervous system
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- The abducens nerve (cranial nerve VI) controls the lateral movement of the eye through innervation of the lateral rectus muscle.
- The abducens nerve (the sixth cranial nerve) is a somatic efferent nerve that, in humans, controls the movement of a single muscle: the lateral rectus muscle of the eye, which moves the eye horizontally .
- Schematic of cranial nerves (showing cranial nerve VI, the
abducens nerve).
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- The hypoglossal nerve is the twelfth cranial nerve (XII), leading to the muscles of the tongue.
- The hypoglossal nerve is the twelfth cranial nerve (XII) and innervates all extrinsic and intrinsic muscles of the tongue, except for the palatoglossus.
- It supplies motor fibers to all of the muscles of the tongue, with the exception of the palatoglossus muscle, which is innervated by the vagus nerve (cranial nerve X) or, according to some classifications, by fibers from the glossopharyngeal nerve (cranial nerve IX) that "hitchhike" within the vagus.