Introduction Flashcards
Motor neurones cause…
Movement & secretion
Name the 3 parts of the brainstem
Medulla, pons, midbrain
Sensory neurones respond to….
A stimulus
Ipsilateral
Same side
Contralateral
Opposite side
From what block of embryonic tissue do somatic structures derive?
Somites
What nerves control somatic structures?
Spinal & Cranial
Name the 4 types if axons, found in spinal somatic nerves.
Somatic afferent & efferent
Visceral afferent & efferent
What go GSA axons detect?
Discriminative touch Proprioception Pain Temp (From skin, joint, muscles)
What does the DWCML pathway convey?
Discriminative touch
Conscious Proprioception
Vibration
What does the Spinothalamic pathway convey?
Simple touch
Pain
Temp
Give an example of a motor pathway, where it’s axons originate and a movement it produces.
Corticospinal tract. Motor cortex. Discrete voluntary skilled movements, eg precise movements of fingers & toes
What is the cortex & what’s cool about its blood supply?
The outer layer of hemisphere made of grey matter. It is supplied from the outside. So loss of function linked to specific blood vessel.
What’s a gyrus & a sulcus?
Gyrus= an individual fold Sulcus= dip
Put simply, what are basal ganglia?
Nuclei