Which cranial nerves are located on the brain stem?

Which cranial nerves are located on the brain stem?

The olfactory nerve (CN I) and optic nerve (CN II) originate from the cerebrum. Cranial nerves III – XII arise from the brain stem (Figure 1).

What are the parts of the brain stem?

The brainstem (middle of brain) connects the cerebrum with the spinal cord. The brainstem includes the midbrain, the pons and the medulla. Midbrain. The midbrain (or mesencephalon) is a very complex structure with a range of different neuron clusters (nuclei and colliculi), neural pathways and other structures.

Where is the brain stem located and what is its function?

Brainstem, area at the base of the brain that lies between the deep structures of the cerebral hemispheres and the cervical spinal cord and that serves a critical role in regulating certain involuntary actions of the body, including heartbeat and breathing.

What is the function of the cranial nerve?

Cranial nerves are responsible for the control of a number of functions in the body. Some of these functions include directing sense and motor impulses, equilibrium control, eye movement and vision, hearing, respiration, swallowing, smelling, facial sensation, and tasting.

What are the cranial nerves 1 12?

Brief Overview of Cranial Nerves.

What are the cranial nerve names?

The names of the cranial nerves (CN) are: CN I – olfactory, CN II – optic, CN III – oculomotor, CN IV – trochlear, CN V – trigeminal, CN VI – abducens, CN VII – facial, CN VIII – vestibulocochlear, CN IX – glossopharyngeal, CN X – vagus, CN XI – accessory, and CN XII – hypoglossal. Link: Introduction to Neuroanatomy.

What is a cranial nerve?

cranial nerve. one of 10 (in ANAMNIOTES) or 12 (in AMNIOTES) peripheral nerves that emerge from the vertebrate brain as distinct from the spinal cord, passing through holes in the skull to innervate structures in the head, neck and upper body.