chap10: the nervous system Flashcards
1
Q
what is a reflex action
A
involuntary action
an immediate response to a specific stimulus without conscious control
2
Q
what is a voluntary action
A
deliberate action
under conscious control
3
Q
what is a synapse
A
the junction between 2 neurones
nerve impulses are transmitted across a synapse by chemical released by the neurons
4
Q
what is the direction of neurones
A
stimulus -> sensory neurone -> relay neurone -> motor neurone -> effector
5
Q
types on relay neurone
A
brain, spinal chord
6
Q
types on relay neurone
A
brain, spinal chord
7
Q
what is a reflex arc
A
is the shortest pathway by which nerve impulses travel from the receptor to the effector in a reflex action
