BTEC Science UNIT 5 Nerves
5
BTEC science UNIT 5 The Nervous System Objectives: all: know that nerves send electrical impulses Most: know about 2 main different nerves Some: know how reflexes are protective of the body This is work towards: UNIT 5 P7 describe two control mechanisms which enable the human body to maintain optimum health. M7 describe the differences between the actions of chemical and electrical protective mechanisms of the body. D7 explain the effects of the chemical and hormonal controls on human health. Keywords stimulus, receptor,coordinator effector response,sensory, motor, relay, synapse, spinal cord, brain Starter: Write down all the words you know that are associated with nerves or the nervous system Main activity – use keywords in your answers 1. why is it hard to catch the five pound note? (see p 147 for words)
Transcript of BTEC Science UNIT 5 Nerves
spinal chord
muscle
sensoryfibre
motorfibre
BTEC science UNIT 5
The Nervous SystemObjectives:
all: know that nerves send electrical impulsesMost: know about 2 main different nerves Some: know how reflexes are protective of the body
This is work towards: UNIT 5P7 describe two control mechanisms which enable the human body to maintain optimum health.M7 describe the differences between the actions of chemical and electrical protective mechanisms of the body.D7 explain the effects of the chemical and hormonal controls on human health.
Keywords stimulus, receptor,coordinator effector response,sensory, motor, relay, synapse, spinal cord, brain
Starter:
Write down all the words you know that are associated with nerves or the nervous system
Main activity – use keywords in your answers
1. why is it hard to catch the five pound note? (see p 147 for words)
2. Label the diagram to show what is happening ( see p 148) for a REFLEX
relay neurone
synapse
grey matter
white matter
cell body ofsensory fibreTest your reflexes:
Can you make your neighbour blink?
Can you find your knee jerk response?
Describe how a named reflex ( eg blinking/hand withdrawal protects the body)
How fast are your reactions? Work this out with the graph on p 136You must take an average of 5 results
Distances:Average:Time in seconds:
Complete this table of differences
Nervous system hormones
Plenary
What are these mixed up words to do with the nervous system?
Brian
Verne
Tromo
Syorsen
Flexer
salpinc rod
roffecte
epersons
ulsutims
crepetor
clemus
atrocodroin
Equipment
Metre sticks FiverCalculatorsDifferences between male and female brain ( lighthearted)
