| A | B |
|---|
| Foreman Magnum | Large opening at the base of the skull where the spinal cord passes through |
| Peripheral Nervous System | Nerves, ganglia, cranial nerves and spinal nerves |
| Ganglia | A collection of nerve cell bodies outside the brain, spinal cord, and CNS |
| Cranial Nerves | bundles of processes from nerve cells or neurons that either innervate muscle glands, or carry impulses from sensory areas |
| How many pair of cranial nerves are there? | 12 |
| Cranial Nerves deal with | our senses |
| How many pair of spinal nerves | 31 |
| Plexus | network or group of nerves |
| Cervical Plexus | innervates or has nerve supply to the skin and muscles of the neck, shoulder, and diaphram |
| Brachial Plexus | innervates the skin and muscles of the upper extremity |
| Lumbosacral Plexus | innervates the skin and muscles of the lower extremity, abdominal wall, buttocks and genitalia |
| Peripheral Nervous System is split into | Afferent and Efferent |
| Afferent Division | (Sensory) Transmits impulses from the peripheral organs muscles/glands to the CNS |
| Efferent Division | (Motor) Transmits impulses from the CNS outward to the peripheral organs to cause an effect or action |
| Efferent System subdivides into | Somatic and Autonomic Nervous Systems |
| Somatic Nervous System | will supply motor impulses to skeletal muscle such as skin, muscle and conscious activity |
| Somatic Nervous System = | Voluntary Nervous System |
| Autonomic Nervous System | will supply motor impulses to the cardiac, smooth muscle, stomach, intestines |
| Autonomic Nervous System = | Involuntary Nervous System |
| Autonomic Nervous System subdivides into | Sympathetic and Parasympathetic |
| Sympathetic System | The fight or flight system- helps us to meet our emergency needs |
| Parasympathetic System | The resting and repose (calm) system- helps our body conserve energy |
