Lab Practical #4: What to Know
A. Cranial Nerves
Nerves |
Primary
Function |
Origin |
Pass
through |
Destination |
| Olfactory | Special sensory (olfaction) | Chemoreceptors of olfactory epithelium | cribiform plate | olfactory bulbs |
| Optic | Special sensory (vision) | Photoreceptors of retina | optic canals | diencephalon |
| Oculomotor | Motor: eye movements | mesencephalon | - | muscles of eye |
| Trochlear | motor: eye movements | mesencephalon | - | muscle of eye |
| Abducens | motor: eye movements | pons | - | muscle of eye |
| Trigeminal | mixed: general sensory from face, motor to face |
sensory: face motor: pons |
- | sensory: pons motor: face |
| Facial | mixed: sensory, motor to face | sensory: face motor: pons |
- | sensory: pons motor: face |
| Vestibulocochlear | special sensory (audition and equilibrium) | mechanoreceptors of inner ear | internal acoustic canals | pons & medulla |
| Glossopharyngeal | mixed: general sensory from throat motor to throat |
sensory: throat motor: medulla |
- | sensory: medulla motor: swallowing muscles |
| Vagus | mixed: general sensory from ears & viscera motor to throat & viscera |
sensory: ears & viscera motor: medulla |
- | sensory: medulla motor: throat & viscera |
| Accessory | motor | spinal cord & medulla | - | throat, neck & back |
| Hypoglossal | motor (tongue) | medulla | - | tongue muscles |
B. Spinal Nerve Plexuses- Be able to identify cervical, brachial, lumbar, sacral plexuses on a diagram
C. Brain Anatomy- Be able to identify on a diagram: cerebrum (cortex, white matter, basal nuclei in general- do not need to name specific basal nuclei), cerebellum, thalamus, epithalamus, hypothalamus, pituitary gland, mesencephalon, pons, medulla oblongata