| Question | Answer |
| How many cervical segments? | 8 |
| How many thoracic segments? | 12 |
| How many lumbar segments? | 5 |
| How many sacral segments? | 5 |
| Dermatomes represent? | skin |
| Sclerotome represents? | connective tissue |
| Myotome represents? | skeletal muscle |
| What is the order of the reflex arc? | Muscle spindle
Spinal nerve
dorsal root ganglion
dorsal horn
ventral horn
ventral root
spinal nerve
muscle fiber |
| Sympathetic control of head and neck is from? | T1-T4 |
| Sympathetic control of stomach, liver and gall bladder is from? | T5-T9 |
| Sympathetic control of kidney, ureters and bladder is from? | T10-T11 |
| IML | Intermediolateral Horn |
| Sympathetic control of colon and rectum? | T8-L2 |
| What is smypathteic control of the cardiovascular? | T1-T5 |
| What is sympathetic control of the respiratory? | T2-T7 |
| What is sympathteic control of small intestine? | T9-T11 |
| What is IML consist of? | White rami communicans and sympathtetic chain |
| What is the visceral innervation? | splanchnic nerves |
| Somatic innervation is from? | Grey rami communicans and Spinal nerves |
| What is sympathtic innervation of the uterus? | T10-T11 |
| What is sympathetic innervation of the prostrate? | L1-L2 |
| Is there overlap of dermatome, mytomes and sclermotomes? | yes |
| What is the order of reflex to somatic dysfunction? | Afferent Drive -> Facilitated Spinal Cord Segments -> Abnormal Reflexes -> Somatic Dysfunction |
| What happens in disease with the input into spinal cord? | It increases.
There is more input. |
| What is the role of interneurons in spinal reflexes? | Somatic and visceral afferents send information to the interneurons and then send information to the somatic and visceral efferents. |
| What are the 4 reflexes? | Somato-somatic reflex
Somato-visceral reflex
Viscero-visceral reflex
Viscero-somatic reflex |
| Somato-somatic reflex | somatic info comes in and somatic info leaves
normal |
| Viscero-visceral reflex | Visceral info comes in and visceral info goes out.
(normal) |
| Viscero-somatic reflex | visceral info comes in but somatic reflex goes out. |
| What is an example of viscero-somatic reflex? | Referred pain |
| Somato-visceral reflex | somatic info goes in and visceral into goes out.
somatic input affects a visceral organ |
| Viscero-somatic reflex effects on somatic tissues | skin
skeletal muscle
tissue texture changes
motion changes
temperature changes |