Junior Cert Science - Biology - The Sensory and Nervous Systems

The change in an environment to which a body responds is called
1. a stimulus
2. a response
3. a retina
4. a ligament
The reaction to a stimulus is called
1. a response
2. a choroid
3. a function
4. a reply
Which one of the following is not a sense organ?
1. Liver
2. Eyes
3. Ears
4. Skin
Which one of the following is NOT one of the human senses?
1. Nerve
2. Taste
3. Touch
4. Sight
Which one of the following is a sense organ?
1. Tongue
2. Sight
3. Smell
4. Touch
Where are the sense cells found in the eye?
1. Retina
2. Iris
3. Lens
4. Blind spot
The part labelled X in the diagram is called the
1. retina
2. blind spot
3. lens
4. cornea
What is the function of the iris in the human eye?
1. It controls the amount of light entering the eye.
2. It focuses light onto the retina.
3. It changes the shape of the lens.
4. It allows light enter the eye.
Where is the sclera located?
1. On the outer layer of the eye.
2. On the retina.
3. On the fovea.
4. In the vitreous humour
Name the parts labelled X and Y in the diagram
1. X = lens, Y = optic nerve
2. X = lens, Y = retina
3. X = iris, Y = optic nerve
4. X = pupil, Y = retina
The transparent front part of the eye is called the
1. cornea
2. lens
3. pupil
4. iris
The coloured part of the eye is called the
1. iris
2. retina
3. choroid
4. pupil
Light falling on this part of the eye is not seen
1. blind spot
2. lens
3. ciliary muscle
4. retina
Name the jelly-like parts of the eye labelled in the diagram
1. A = aqueous humour, B = vitreous humour
2. A = vitreous humour, B = aqueous humour
3. A = aqueous humour, B = lens
4. A = vitreous humour, B = pupil
What part of the eye focusses light onto the retina?
1. Lens
2. Pupil
3. Iris
4. Retina
Name the parts labelled X and Y in the diagram
1. X = iris, Y = optic nerve
2. X = iris, Y = fovea
3. X = optic nerve, Y = iris
4. X = pupil, Y = blind spot
The outermost transparent layer of the eye is called the
1. sclera
2. iris
3. fovea
4. pupil
The middle part of the eye containing blood vessels is called the
1. choroid
2. pupil
3. vitreous humour
4. optic nerve
The coloured part of the eye that controls the amount of light entering is called the
1. iris
2. pupil
3. lens
4. sclera
The lens focusses light onto the retina by changing its shape. What causes it to change shape?
1. Ciliary muscles
2. Fovea
3. Iris
4. Cornea
The light receptor cells in the eye are located in the
1. retina
2. blind spot
3. pupil
4. cornea
The diagram shows the human eye.
Give the function of the cornea
1. To allow light into the eye.
2. To carry nerve impulses to the brain.
3. To change the shape of the lens.
4. To detect light.
The diagram shows the human eye.
What is the function of the ciliary muscle?
1. To change the shape of the lens.
2. To allow light into the eye.
3. To carry nerve impulses to the brain.
4. To detect light.
What is the function of the iris?
1. To control the amount of light entering the eye.
2. To change the shape of the lens.
3. To focus light onto the retina.
4. To carry nerve impulses to the brain.
What is the function of the pupil?
1. To allow light enter the eye.
2. To control the amount of light entering the eye.
3. To change the shape of the lens.
4. To focus light onto the retina.
The pupil of the human eye is transparent. Why does the pupil appear to be black in most situations?
1. Because most of the light entering the eye is absorbed.
2. Because light cannot travel through the vitreous humour.
3. Because the lens does not let light pass back out.
4. Because the light does not have enough energy.
The diagram is of the human eye. Name the part labelled A.
1. Lens
2. Iris
3. Fovea
4. Blind spot
The diagram is of the human eye. What is the function of the ciliary muscle?
1. To change the shape of the lens.
2. To control the amount of light entering the eye.
3. To carry light impulses to the brain.
4. To allow light enter the eye.
The opening in the coloured part of the eye that opens or closes to adjust the amount of light entering the eye, is called the
1. iris
2. pupil
3. cornea
4. fovea
The coloured part of the eye is called the
1. iris
2. retina
3. fovea
4. pupil
Name the jelly-like substance that light passes through before striking the retina
1. Vitreous humour
2. Iris
3. Lens
4. Cornea
What part of the eye changes shape as the ciliary muscles contracts or relaxes?
1. Lens
2. Pupil
3. Iris
4. Retina
With regards to the workings of the human body, what do the initials CNS stand for?
1. Central Nervous System
2. Community National Schools
3. Christian News Service
4. Congress of Neurological Surgeons
Which one of the following does not belong to the central nervous system?
1. Skull
2. Brain
3. Spinal chord
4. Nerves
Which one of the following is part of the central nervous system?
1. Brain
2. Lung
3. Eye
4. Ear
Which one of the following is part of the central nervous system?
1. Spinal chord
2. Nose
3. Skull
4. Skin
The spinal chord is protected by
1. the vertebrae
2. rib cage
3. skull
4. cornea
Name the parts labelled A and B in the diagram.
1. A = brain, B = back bone
2. A = brain, B = rib cage
3. A = skull, B = back bone
4. A = back bone, B = vertebrae
Which one of the following is NOT a role of the central nervous system?
1. To protect the spinal chord
2. To receive information from the sense organs
3. To send a response to the muscles
4. To be responsible for memory
Select the correct statement from the following:
1. The spinal chord carries information from the sense organs to the brain.
2. Sensory nerves carry impulses from the brain.
3. The heart is part of the central nervous system.
4. Motor nerves carry signals from the sense organs to the brain.
Label parts X and Y in the diagram.
1. X = spinal chord, Y = nerve
2. X = spinal chord, Y = brain
3. X = nerve, Y = spinal chord
4. X = vertebrae, Y = spinal chord
To carry information from the brain to the muscles and glands is one of the functions of
1. the spinal chord
2. brain
3. muscles
4. vertebrae
Name the parts labelled A and B in the diagram.
1. A = cytoplasm, B = nucleus
2. A = cytoplasm, B = nerve ending
3. A = nerve ending, B = cytoplasm
4. A = nucleus, B = cytoplasm
Which one of the following is NOT a function of the brain?
1. To protect the skull.
2. To be responsible for memory.
3. To make decisions.
4. To receive information from the sense organs.
What are the parts labelled A and B in the diagram?
1. A = spinal chord, B = nerve
2. A = spinal chord, B = vertebrae
3. A = vertebrae, B = brain
4. A = brain, B = CNS
A neurone is another name for
1. a nerve cell
2. a bone in the vertebrae
3. part of the skull
4. the light sensitive part of the eye
Which one of the following carries messages away from the brain?
1. Motor neurone
2. Sensory nerve
3. Vertebrae
4. Spinal chord
Light enters the front of the eye through the
1. cornea
2. blind spot
3. retina
4. ciliary muscles

Junior Cert Science - Biology - The Sensory and Nervous Systems

Multiple Choice Quiz