WorksheetsNerves and homeostasis
Total questions: 16
Worksheet time: 8mins
Which type of neurone transmits a signal from a sense organ to the central nervous system?
Sensory
Relay
Motor
Nina
Which type of neurone transmits a signal from the central nervous system to an effector such as a muscle?
Sensory
Relay
Motor
Nina
What is a synapse?
A type of reflex action
A gap between two neurones
The long fibre of a nerve cell
A type of neurone
Which part of the nervous system is not involved in producing reflex actions?
Brain
Spinal cord
Receptors
Sensory neurone
What is the eye an example of?
A stimulus
A sense organ
A relay neurone
A sensory neurone
Which part of the eye controls the amount of light entering it?
The cornea
The iris
The retina
The sclera
Which two parts of the eye are involved in focusing?
The lens and the cornea
The lens and the retina
The cornea and the optic nerve
The retina and the optic nerve
What happens to the ciliary muscles when you see a distant object
They relax
They contract
They slacken
They tighten
What happens to the suspensory ligaments when you focus on a distant object
They contract
They relax
They stretch
They slacken
What happens to the lens when you focus on distant objects?
It gets bigger
It gets smaller
It gets thinner
It gets fatter
What is the approximate normal core temperature for the body?
35oC
36oC
37oC
38oC
Where is the body's thermoregulatory centre?
In the brain
In the skin
In the liver
In the mouth
How does sweat keep us cool?
Sweat is cool so it cools us down
As sweat evaporates it removes heat from the skin
It carries heat from one part of the body to another
It smells, so keeps people away from us allowing us to cool down
What is vasodilation?
Arterioles become wider, increasing the flow of blood in the skin capillaries
Arterioles become narrower, decreasing the flow of blood in the skin capillaries
Arterioles become narrower, increasing the flow of blood in the skin capillaries
Arterioles become wider, decreasing the flow of blood in the skin capillaries
What sort of feedback is involved in thermoregulation?
Negative
Positive
Neutral
Transural
What is homeostasis?
Regulation of the body's external environment
Regulation of the body's constant external environment
Regulation of the body's constant internal environment
When you have two different alleles
