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Homeostasis 1
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Questions in this quiz (9)
1The [blank_start]regulation[blank_end] of the internal conditions of a [blank_start]cell or organism[blank_end] to maintain [blank_start]optimum[blank_end] conditions for [blank_start]function[blank_end], in response to internal or external [blank_start]changes[blank_end].
- Aregulation
- Bcell or organism
- Coptimum
- Dchanges
- Efunction
2Controlled internal conditions include:
- [blank_start]thermoregulation[blank_end]
- [blank_start]osmoregulation[blank_end]
- [blank_start]blood glucose concentration[blank_end]- Athermoregulation
- Bosmoregulation
- Cblood glucose concentration
3Receptors:
cells that [blank_start]detect changes[blank_end]
may be in the [blank_start]nervous system[blank_end] or [blank_start]hormonal control centres[blank_end]- Adetect changes
- Bnervous system
- Chormonal control centres
4Coordination centres:
areas that [blank_start]receive and process information[blank_end] from receptors
includes the [blank_start]brain[blank_end], [blank_start]spinal chord[blank_end] and [blank_start]pancreas[blank_end]- Areceive and process information
- Bbrain
- Cspinal chord
- Dpancreas
5Effectors:
[blank_start]muscles or glands[blank_end] that bring about response
respond to received stimulus
restore conditions to optimum through [blank_start]chemical or physical[blank_end] changes- Amuscles or glands
- Bchemical or physical
6The nervous system carries impulses between [blank_start]1-120[blank_end] metres per second
- A1-120
7Stimulus
|
Receptor
| ([blank_start]sensory neurones[blank_end])
Coordinator ( [blank_start]Central Nervous System[blank_end] )
| ([blank_start]motor neurones[blank_end])
Effector
( [blank_start]muscles[blank_end] may contract
[blank_start]glands[blank_end] may secrete chemicals )- Asensory neurones
- BCentral Nervous System
- Cmotor neurones
- Dmuscles
- Eglands
8The [blank_start]receptor[blank_end] sends an impulse along a [blank_start]sensory neurone[blank_end], carrying information about a change in the environment to the coordinator ([blank_start]CNS[blank_end]). Once all incoming information has been processed, the coordinator sends an impulse along the [blank_start]motor neurones[blank_end], which stimulate the [blank_start]effectors[blank_end] needed in a particular circumstance.
- Areceptor
- Bsensory neurone
- CCNS
- Dmotor neurones
- Eeffectors
9Experiments to measure reaction times:
- [blank_start]ruler drop test[blank_end] ( reaction to visual stimulus )
- hand squeeze around circle ( [blank_start]reaction to physical stimulus[blank_end] )- Aruler drop test
- Breaction to physical stimulus
Information
- Description
- Principles of homeostasis and central nervous system.
- Author
- Victoria Davis
- Language
- English
- Views
- 39
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