Nervous System

Dendrites carry electrical nerve impulses _______ the cell body.

• towards

• away from

• around

Axons carry electrical nerve impulses _______ the cell body.

• towards

• away from

• around

There are typically more _______ in a single neuron.

• axons than dendrites

• dendrites than nuclei

• nuclei than axons

• dendrites than axons

• axons than cell bodies

"Transmit messages from 1 part of the body to the next" is the function of what?

• dendrites

• axons

• cell body

• neuons

• myelin sheath

What is the function of the myelin sheath?

• Hold DNA

• carry messages away from the cell body

• insulate the axon

• carry messages towards the neuron cell body

When neurons communicate with each other - what two parts communicate?

• Dendrite to cell body

• Axon to cell body

• Axon to dendrite

• Dendrite to axon

True / False - when neurons communicate with other neurons, they touch directly.

• True

• False

If scans of a person's brain showed degeneration of the cerebellum, which symptoms might they exhibit?

• problems with breathing and digestion

• loss of language and memory

• problems with decisions and planning

• loss of skeletal muscle movements and balance

A student was involved in a car accident that resulted in loss of visual capability and an inability to identify colors. Which lobe of the brain was probably damaged in the accident?

• Parietal lobe

• Occipital lobe

• Frontal lobe

• Temporal lobe

Susie has become paralyzed due to a bad injury to her spinal cord. Is this a result of injury to her central or peripheral nervous system?

• Central

• Peripheral