Font size
WorksheetsGrade 8 Topic 1 half way through
Total questions: 25
Worksheet time: 22mins
Endocrine glands secrete _
Hormones
Neurotransmitters
A wide range of chemical substances
What is the main function of the endocrine system?
It creates chemicals, or hormones, that are sent around the body to maintain homeostasis.
It creates electrical messages that are sent around the body to maintain homeostasis.
It maintains the correct level of oxygen in the body to maintain homeostasis.
It releases waste from the body to maintain homeostasis.
The "master gland" is known as the __________________.
thyroid gland.
adrenal gland.
pancreas.
pituitary gland.
What is a nerve cell?
axon
neuron
dendrite
myelin
Which 2 are parts of the central nervous system?
brain
nose
spinal cord
left big toe
What type of neuron is A?
Sensory
Inter
Motor
What type of neuron is B?
Sensory
Inter
Motor
What type of neuron is C?
Sensory
Inter
Motor
Which is the correct order of neurons in a reflex arc?
Sensory neuron, motor neuron, relay neuron
Relay neuron, sensory neuron, motor neuron
Sensory neuron, relay neuron, motor neuron
What is the final component of a reflex arc?
Effector
Receptor
Afferent Pathway
Which number represents the stimulus?
1
2
3
4
The skin senses for which of the following?
Temperature
Pressure
Pain
Touch
The skin can sense all of these
The largest organ in our body is the
skin
lungs
arteries
brain
All parts of the sensory system use ________ to receive information about the world around us.
cone cells
receptors
hair
chemoreceptors
The nerves associated with smell are referred to as the:
olfactory receptor cells
smell cells
gustatory receptor cells
umami cells
Several athletes have been banned from their sport for using the drug nandrolone. This drug
helps the body to build up muscle tissue.
What sort of drug is nandrolone?
anabolic steroid
antibiotic
depressant
neurotransmitter
A hallucinogen is
A drug that distorts a persons perception of reality
A drug that gives you lots of energy
A drug that is performance enhancing and will help athletes perform better
A legal drug that you can buy over the counter
What changes occur to cool the body down?
Vasoconstriction, increase sweating and hairs lie flat
Vasodilation, increase sweating and hairs lie flat
Vasodilation, reduced sweating and hair stand up
Vasoconstriction, increase sweating and hairs lie flat
Vasodilation means:
Blood vessels allow more blood to flow through them
Blood vessels allow less blood to flow through them
Blood vessels swell up
Homeostatic cooling mechanisms include:
Piloerection and vasoconstriction
Sweating and piloerection
Sweating and vasodilation
If the environment gets cold, we will often shiver in order to:
Keep body temperature the same as the external temperature
Decrease body temperature
Increase body temperature
Why do blood vessels dilate?
To keep the blood close to the heart
To allow for heat to be transported to the skin for evaporation
