F5 Coordination

What is the function of the axon of a sensory neuron?

• To release neurotransmitter in the synaptic cleft.

• To carry impulse away from the cell body

• To speed up the conduction of impulse

• To carry impulse towards the cell body

Diagram shows an efferent/motor neuron. Which of the structure labelled A,B,C or D transmit the impulse to the muscle cell?

• A

• B

• C

• D

Diagram shows a cross section of the spinal cord. Where is the cell body of the interneurone and efferent neurone located

• dorsal root

• ventral root

• white matter

• grey matter

Which part of the nervous system is not involved in producing reflex actions?

• brain
• spinal cord
• receptors
• sensory

Which of these is not a reflex response?

• moving a hand off something hot
• sneezing
• picking up a book
• wink of eyes

Tags

NGSS.MS-LS1-8

Which of the following is the correct definition of stimulus?

• The ability of an organism to respond

• the extent of changes in the surrounding

• a change in the environment

• changes in pH

X --> Central Nervous System --> Y

What are represented by X and Y?

• X - afferent pathway

  Y - efferent pathway

• X - efferent pathway

  Y - afferent pathway

• X - effector

  Y - receptor

• X - receptor

  Y - effector

What is the role of the neurotransmitter in the nervous system

• speeds up the transmission of nerve impulses

• receives information from other neurones

• transmits impulses from the cell body to neurones

• facilitates the transmission of nerve impulses in one direction

What is the benefit of structure X?

• protects the axon

• insulate the nerve impulses

• speed up the transmission of electrical impulse

• ensure the one direction of electrical impulse

The diagram represents a simple reflex arc.

What is the sequence of nerve cells through which an impulse passes during a reflex action?

• P Q R

• Q R P

• Q P R

• R P Q