Nervous System Review

Nervous System Review

Multiple Choice

What is the function of the nervous system.

• provide nutrients for the body.
• send and recieve messages
• circulate oxygen to sells
• remove carbon dioxide from blood

Multiple Choice

Two major branches of the nervous system

• central and peripheral
• peripheral and motor
• motor and sensory
• central and motor

Multiple Select

Which of the following are part of the central nervous system?

• brain

• spinal cord

• nerves

• skin

Nervous System Organization

• CNS-central nervous system

• brain and spinal cord

• PNS-peripheral nervous system

• nerves

Multiple Choice

Your body temperature rises as you walk around outside in Bangladesh on a hot afternoon. The sensors in your skin detect the rise in your surface temperature so you start to sweat.

• Positive Feedback

• Negative Feedback

Multiple Choice

A feedback loop best fits which characteristic of life?

• Cells

• Organization

• Homeostasis

• Adaptation

Multiple Choice

What is the point of a feedback loop?

• To provide the body with more energy

• To provide the body with more food

• To make sure the conditions in the body are always changing

• To make sure the conditions in the body remain stable

Multiple Choice

A student is studying for an exam they are tired so they drink an energy drink to stay awake. They cannot sleep because of the caffeine, so they are tired the day of the exam so they drink another energy drink and cannot sleep again. This is an example of

• positive feedback

• negative feesback

• neutral feedback

• College

Feedback loops

• positive- continues until stimulus is removed

• negative- negates the stimulus to restore balance

Multiple Choice

The lobe responsible for vision

• Frontal Lobe
• Temporal Lobe
• Parietal Lobe
• Occipital Lobe

Multiple Choice

The lobe responsible for making plans and evaluating consequences

• Frontal Lobe
• Temporal Lobe
• Parietal Lobe
• Occipital Lobe

Multiple Choice

Which lobe is in green?

• Frontal

• Occipital

• Parietal

• Temporal

Brain Regions

• frontal-decision making, emotional control, impulse control

• Parietal- language, perception

• Motor Cortex- sensory control

• Occipital- visual

• Temporal- hearing

• brain stem- life functions

• cerebellum- mini brain

Multiple Choice

The split-brain procedure involves the cutting of this structure which separates the left and right hemispheres of the brain

• Cerebral Cortex

• Cerebellum

• Corpus Callosum

• Caudate Nucleus

Corpus Callosum

Connects and transmit signals between right and left hemisphere

Multiple Choice

Which of the following is TRUE of reflexes?

• They do not involve thought
• They can be simple or complex
• They help maintain homeostasis
• All options are true

reflexes

automated response that does not reach the brain

Multiple Choice

The part of the neuron that receives messages from adjacent neurons

• axon

• axon terminal

• dendrite

• neuron

Multiple Choice

The long, fiber like part of a neuron which the cell sends information to receiving neurons

• axon 
• dendrite
• axon terminal
• gene

Multiple Choice

The part of the neuron that integrates or sums up all the incoming impulses from the dendritic spines and can initiate the opening of the Na⁺ (firing the neuron)

• nucleus

• axon terminal

• axon hillocks

• neurotransmitter

Neuron

• Dendrite- receives chemical messages from other nerve cells

• Axon Hillocks- threshold of signal transduction (neuron firing)

• Axon- carries the electrical signal

• Axon terminal- where the electrical impulse results in the release of a neurotransmitter

Multiple Choice

Gaps between Schwann cells that increase the speed of the transmission of the signal down the neuron are called

• axon terminals

• dendrites

• myelin

• nodes of Ranvier

Multiple Choice

This insulating material forms a layer, around the axon of a neuron.  It enables electrical signals to travel down the axon at higher speeds.

• neuron
• myelin sheath
• dendrite
• neurotransmitter

Schwann Cells

special cells that produce a myelin sheath that increases the speed of the electric impulse down the axon

Multiple Choice

What is this integral protein referred as?

• Na⁺ channel

• K⁺ channel

• sodium potassium pump

• salty

Multiple Choice

What voltage gated integral protein only transports Na⁺ along the concentration gradient?

• Sodium channel

• Sodium Potassium pump

• sodium pump

Multiple Choice

What voltage gated integral protein only transports K⁺ along the concentration gradient?

• Potassium channel

• Sodium Potassium pump

• Potassium pump

• potassium membrane

Axon Membrane Integral Proteins and Signal Transduction

• Sodium Potassium Pump (Na⁺ K⁺)- maintains resting membrane potential

• Na⁺ channel- depolarization of the membrane and signal

• K⁺ channel- reestablishes the resting potential by releasing potassium out of the cell

Multiple Choice

When a neuron is depolarized, what are the first channels to open?

• Sodium
• Potassium
• Calcium
• ACTH

Multiple Choice

At what stages do Sodium/Potassium Channels open?

• Repolarization/ Repolarization
• Depolarization/ Hyperpolarization
• Hyperpolarization/ Repolarization
• Depolarization/ Repolarization

Multiple Choice

When a neuron is resting, the inside of the axon has a ____________ charge.

• positive
• negative

Multiple Choice

When a neuron is not engaged in an impulse.

• Resting potential
• Action potential
• Neural potential
• Synaptic potential

Signal Transduction

• -70 mv resting membrane potential

• Na⁺ channel opens positive ions enter the cell

• the Na⁺ channel closes

• K⁺ channel opens positive ions leave the cell (slight hyperpolarization)

• return to resting membrane potential

Multiple Select

check all that apply

• signal propagation (traveling) along an axon

• the consecutive opening and closing of ion channels along an axon

• the reversal of a signal along the axon

• the malfunctioning of the sodium potassium pump

Signal propagation (movement along the axon)

• domino effect

• the integral proteins open and close along the axon until it reaches the axon terminal

Multiple Choice

at point a

• resting membrane potential

• sodium channels open

• potassium channels open

• sodium channels close

• potassium channels close

Multiple Select

at point c

• resting membrane potential

• sodium channels open

• potassium channels open

• sodium channels close

• potassium channels close

Multiple Choice

b is also called

• resting membrane potential

• depolarization of the membrane

• hyperpolarization of the membrane

Graphical representation of action potential