the nervous system - greater st. albert catholic...

January 31, 2011

The Nervous System

Organization of the Nervous System

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Nerves & Neurons

Nerves & Neurons

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Nerves & Neurons

A nerve is a bundle of many neurons

Nerves & Neurons

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Structure of a myelinated Neuron

Create-Your-Own Neuron

· Using the Playdough, create two synapsing neurons· Be sure to include the following structures:

· Cell Body· Dendrites· Axon

· Axon Terminal· Myelin

January 31, 2011

A Resting Neuron: -70mV

Sodium Potassium Exchange Pump (Animation)

http://www.mcgrawhill.ca/school/applets/abbio/ch11/sodium-potassium2_sodiu.swf

Neuron Action Potential

Voltage Gated Ion Channels (Animation)

http://www.mcgrawhill.ca/school/applets/abbio/ch11/voltagegated_voltage_ga.swf

January 31, 2011

Complete Action Potential w/ Threshold

Action Potential & Electrical Signaling (Animation)

Saltatory Conduction (Animation)

Action Potential Propagation (Animation)

Crossing Synapses

Synapse (Animation)

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Neuromuscular Junction

Neuromuscular Junction (animation)

Excitatory & Inhibitory Neurotransmitters

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Lethal Injection / Euthanasia

How does it work?· Sodium thiopentol is an anesthetic used to induce medical comas·· Pavulon blocks acetylcholine receptors in neuromuscular junctions (arrests breathing)·· Potassium chloride - hyperpolarizes neurons of the heart.

January 31, 2011

Cocaine, Coke, Drugs, Mouse Party etc.

Prozac & Depression

Suppressing Pain

Mouse Party

- Work on Practice Questions p. 10 - 11 in colouring book

Reflex Arcs

Receptors in the Skin (Animation)

Reflex Arc (Animation)

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Spinal Cord

1 Which type of neuron carries impulses toward the central nervous system (CNS)?

A Sensory neuron

B Motor neuron

C Interneuron

D Parasympathetic neuron

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2 Which row below identifies the first and last elements in a reflex arc?

A

B

C

D

First Element Last Elementaxon dendrite

sensory receptor muscle (effector)

brain gland (effector)

motor neuron sensory neuron

3 Which of the following is incorrect?

A The central nervous system integrates and processes information sent by nerves.

B The autonomic system controls digestive system secretions and the functioning of smooth and cardiac mucles.

C The somatic system consists of sensory receptors, nerves that carry sensory information to the CNS.

D The peripheral nervous system consists of the brain and the spinal cord.

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4 Which statement is incorrect?

A A patient with nerve damage at location B would be able to move her hand but would not be able to perceive the pain from the paper cut on her thumb.

B A patient with nerve damage at location C would be able to perceive the pain from a paper cut on her thumb but would not be able to move her hand.

C A patient with nerve damage at location A would be able to perceive pain from the paper cut and be able to move her hand.

D A patient with nerve damage at location D would be able to perceive the pain from the paper cut and be able to move her hand.

5 The following describes (in no particular order) the structures involved in the nervous system response when you touch your finger to a hot stove:

1. Motor neuron2. Sensory receptor in the skin3. Interneuron in the spinal cord4. Sensory neuron5. Skeletal muscles

The steps in the reflex described above are not in the correct order. The order in which the events would occur in a reflex arc is _____, _____, _____, _____, and )_____.

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Experimental Design Vocabulary:

Controls:

Manipulated Variable:

Responding Variable:

Qualitative Data:

Quantitative Data:

Lab: Reflex Responses

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Lab: Visual Reaction Time

The Brain

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The Brain

The Cerebrum

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6 Which part of the brain would be damaged, and what would the symptoms be?

A Frontal Lobe Impaired JudgementB Frontal Lobe Hearing lossC Temporal Lobe Reduced motor controlD Temporal Lobe Hearing loss

7 Which part of the brain would most likely be damaged, and what would the symptoms be?

A Sensory Cortex Reduced pain sensitivityB Sensory Cortex Hearing lossC Motor Cortex Reduced motor controlD Frontal Lobe Loss of smell

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8 Which part of the brain would be damaged, and what would the symptoms be?

A Parietal Lobe Vision lossB Parietal Lobe Hearing lossC Temporal Lobe Vision lossD Temporal Lobe Hearing loss

9 Which part of the brain would be most affected, and what would the symptoms be?

A Cerebellum Loss of BalanceB Cerebrum Personality changeC Medulla Emotional instabilityD Parietal Lobe Reduced touch sensitivity

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10 Which part of the brain would be most affected, and what would the symptoms be?

A Parietal Lobe Reduced touch sensitivity

B Parietal Lobe Personality changes

C Frontal Lobe Personality changes

D Frontal Lobe Reduced touch sensitivity

11 Which part of the brain would be most affected, and what would the symptoms be?

A Frontal Lobe Reduced IQ

B Frontal Lobe Increased appetite

C Frontal Lobe Reduced balance

D Frontal Lobe Reduced touch sensitivity

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12 The person whose brain this belonged to would have died because their heart and lungs, and well lets face it, everything else, would have quit working after the zombie ate their brain. Which part of the brain would be most directly responsible for the stopping of the heart & lungs?

A Frontal Lobe

B Parietal Lobe

C Temporal Lobe

D Occipital Lobe

E Hypothalamus

F Pituitary

G CerebellumH Pons

I Medulla Oblongata

J CorpusCallosum

BrainSong

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Autonomic Nervous System

Polygraph

PolygraphVideo

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Optical Illusions & Sensory Adaptation

· How Stuff Works - Vision

· Michael Bach Optical Illusions

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Retina

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Cochlea

Hearing: Organ of Corti

Basilar MembraneAnimation

January 31, 2011

Utricle & Saccule Semi-Circular Canals

Detection of Movement

Review Questions: p.432 #5, 6, 10, 12-17