LL- Nervous System

Multiple Choice

A student practiced a ruler-drop test 10 times to see if their reaction time improved. The graph below shows the data from their trials.
What is being changed or tracked on the x-axis?

• Reaction Time

• Mood of Particpants

• Age of Participants

• Time for ruler to fall

Multiple Choice

Neurons can be "myelinated" (have a fatty insulation) or "unmyelinated." This graph compares how fast an electrical signal travels in both types.
If a disease like Multiple Sclerosis (MS) were to damage the myelin sheath of a neuron, how would you expect its bar on this graph to change?

• The line unmyelinated neuron for would significantly decrease in height.

• The line myelinated neuron for would significantly decrease in height.

• The line unmyelinated neuron for would significantly increase in height.

• The line myelinated neuron for would significantly increase in height.

Multiple Choice

The nervous system uses "Action Potentials" (electrical signals) to send messages. This graph shows how a sensory neuron in your skin responds to different levels of pressure. Look at the height (amplitude) of the spikes. Does a stronger stimulus create a "bigger" electrical signal, or just "more frequent" signals? Use the graph to justify your answer.

• No, a stronger stimulus does not create a larger signal.

• No. The signals stay the same size and frequency, but each individual electrical pulse stays 'on'.

• Yes. Because a heavy squeeze has more physical energy.

• Yes. A stronger stimulus makes the electrical signal travel much faster down the axon

Multiple Choice

The red part of the picture shows the ________ which is part of the nervous system.

• brain
• spinal cord
• peripheral nerves
• neurons

Multiple Choice

The Sympathetic and Parasympathetic nervous systems are part of the :

• Autonomic nervous system

• Somatic Nervous System

• Central nervous system

• Limbic System

Categorize

Options (7)

Somatic

Autonomic

Brain

Spinal Cord

Body's Control Center

5 Senses

Many Nerves

Which of the following are a part of the central nervous system vs the peripheral?

Central

Peripheral

Reorder

So how do these neurons work if someone taps you on the shoulder . . .

• Receptors in the skin sense touch or other stimuli.

• Sensory neurons transmit the touch message.

• Information is sorted and interpreted in the brain. A response in determined by interneurons.

• Motor neurons transmit a response message to the shoulder muscles.

• The shoulder muscles are activated, causing the head to turn.

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

Which part of the neuron receives signals from other neurons?

• Axon

• Cell Body

• Dendrites

• Synapse

Multiple Choice

The part of the brain that controls controls balance and condination.

• Cerebellum

• Brain Stem

• Cerebrum

• Spinal cord

Multiple Choice

The part of the brain that controls controls memory, intelligence, muscles.

• Cerebellum

• Brain Stem

• Cerebrum

• Spinal cord

Multiple Choice

The part of the brain that controls controls involuntary activities such as heart rate and breathing

• Cerebellum

• Brain Stem

• Cerebrum

• Spinal cord

Multiple Choice

The top layer of the skin is called the _________________.

• dermis
• oil gland
• nerve
• epidermis

Multiple Choice

A major function of skin is protection from:

• Abrasion
• UV light 
• Entry of microorganisms
• All of the above 

Multiple Choice

The integumentary system is made up of the...

• Skin, Muscle, and Bone
• Hair, Nails, and Lashes
• Nails, Hair, and Skin
• 3 layers of tissue