Leaving Certificate BiologyNervous System 2 iQuiz

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Which of the following structures of a reflex arc can be stimulated to

start a reflex action?

Receptor

Effector Sensory neuron

Motor neuron

Which of the following structures of a reflex arc transmits impulses

toward the central nervous system?

Receptor

Motor neuron Sensory neuron

Effector

Which of the following is not a receptor?

Ears Kidney

Nose Eyes

The main conducting fibre of a nerve cell is called …

A dendrite The axon

A synapse A cell body

Which of the following structures of a reflex arc transmits impulses from the central nervous system?

Receptor Effector

Sensory neuron Motor neuron

Sense organs are connected to the spinal cord by …

A motor neuron A sensory neuron

An effector neuron A Schwann cell

Which of the following structures of a reflex arc is a muscle or a

gland?

Motor neuron Receptor

Effector Sensory neuron

The small gap between neurons is called …

Plexus Synapse

Ganglion Motor end plate

A mass of nerve cells is called …

A ganglion A nerve fibre

The dura mater A neuron

The pathway of a reflex arc involves the following structures: 1 – sense organ; 2

– spinal cord; 3 – motor neuron; 4 – muscle; 5 – sensory neurons. The correct sequence of events is …

1-5-2-4-3 1-4-3-2-5

1-5-2-3-4 1-2-3-5-4

Nerve cells or neurons that bring messages to muscles are called …

Interneurons Motor neurons

Afferent neurons Sensory neurons

Muscle coordination is controlled by the …

Spinal cord Corpus callosum

Medulla oblongata Cerebellum

The rate of breathing is controlled by the …

Cerebrum Medulla oblongata

Intercostal muscles Diaphragm

The spinal cord serves as a centre for …

Synapses Subconscious thought

Reflex actions Auxins

The control of the size of the pupil in the eye is …

A conditioned reflex A reflex action

A voluntary action A tropism

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Nervous System 2 iQuiz