Nervous coordination

The resting membrane potential of a neuron is about:

• 1 +30 mV
• 2 +70 mV
• 3 -70 mV
• 4 0 mV

An impulse jumps from node to node along a myelinated axon. This is called:

• 1 Reflex
• 2 Saltatory conduction
• 3 Osmosis
• 4 Diffusion

The gap between two neurons is the:

• 1 Dendrite
• 2 Node
• 3 Synapse
• 4 Axon

Acetylcholine is a:

• 1 Hormone from the thyroid
• 2 Neurotransmitter
• 3 Vitamin
• 4 Enzyme

The part of the brain that controls heart rate and breathing is the:

• 1 Pituitary
• 2 Cerebellum
• 3 Cerebrum
• 4 Medulla oblongata

The part of a neuron that receives signals is the:

• 1 Myelin sheath
• 2 Dendrite
• 3 Axon
• 4 Synapse

The sheath around many axons that speeds impulses is made of:

• 1 Keratin
• 2 Cellulose
• 3 Myelin
• 4 Chitin

A reflex arc involves a sensory neuron, a relay neuron and a:

• 1 Motor neuron
• 2 Hormone
• 3 Muscle spindle only
• 4 Gland only