B10 Flashcards
1
Q
what is the balancing act of homeostasis?
A
this regulates the internal condition of a cell or organism to ensure the conditions are optimum for functioning
2
Q
what causes homeostasis?
A
a response to internal and external changes, recognised by receptors
3
Q
state the order of the nervous system
A
stimulus - receptor - coordinator - effector
4
Q
what is a sensory neurone?
A
a neurone that carries impulses (messages) from the sensory organs to the central nervous system
5
Q
what is a motor neurone?
A
carries impulses from the central nervous system to the effector organs
6
Q
what is a nerve?
A
a bundle of hundreds/thousands of neurones
