Catalyst #16 Pg. 81-Take out Flashcards/ LabTurn in HW to the box1. Go to the class websiteOpen and do the Catalyst:Anatomy: Lesson 83- Catalyst #16-3/27-3/28ANDANATOMY: LESSON 83- Synaptic Transmission PPT-3/27-3/28

Semester 2 Table of Contents24. Lesson 82- Action Potential Simulation Pg. 79-8025. Lesson 83- Synaptic Transmission Pg. 81-84Assigned Vocabulary- Due TODAY 27. Neuron28.Axon29.Dendrite30.Myelin sheath31.Nodes of Ranvier32.Axon terminal33.Axon hillock34.Soma35.Sensory neuron36.Motor neuron37.Interneuron38. Action Potential39. Resting Potential40. Threshold41. All or None Law

Assigned Vocabulary- Due Next Th/Fri42. Synapse43. Synaptic cleft44. Pre synaptic neuron45. Post synaptic neuron46. Synaptic Vesicle

neuronsynapse

presynaptic neuronpostsynaptic neuron

synaptic cleftneurotransmitter

Your explanation here

2

Axon terminal

Announcements

• No school on Monday/Tuesday• Flashcards Due: Next Th/Fri• Dissection: 4/6-4/7• Nervous System Unit Test: 4/10-4/11• Notebook Check: 4/10-4/11• 3 grades will be input before we go onto spring

break!

Critical Vocabulary- Top of Pg. 82

Please write down vocabulary and draw a picture to remind you of what the word means.

Synapse = Place where the 2 neurons meet. It includes the receptors of the 2 neurons along with the synaptic cleft.

Synaptic Cleft = The space in between the axon terminal and the dendrite of two neurons.

Synaptic vesicle = Packaged ball of neurotransmitters.

Calcium Channel = Protein channels in the membrane that allow Calcium to come into the axon terminal.

Pre-Synaptic Neuron = The neuron who transmits the signal to another neuron (axon terminal of the first neuron).

Post-synaptic Neuron = The neuron that receives the signal (the dendrite of the next neuron).

Neurotransmitter = the chemical that is released between two neurons to transmit the signal.

Explain how a neural signal is communicated across a synapse.

How do you communicate to your friend in Texas, without any technology?

vocabulary preview

SYNAPSE

cleft

vocabulary preview

synaptic CLEFT

vocabulary preview

PRE SYNAPTICbefore the synapse

vocabulary preview

POST SYNAPTIC

vocabulary preview

POST SYNAPTICafter the synapse

vocabulary preview

neuro transmitterbrain messenger

vocabulary preview

SYNAPSEPRESYNAPTIC

POSTSYNAPTICNEUROTRANSMITTER

A. IBE Directions- Do under your catalyst

Directions

• Part 1: Arrange the pictures in order the order of the pictures on your sheet. Then, arrange the written descriptions in order. Try to match the description with its picture.

• Part 2. Label the following parts of the picture below: presynaptic neuron, postsynaptic neuron, neurotransmitter, postsynaptic receptor, neurotransmitter transporter, synaptic vesicle

Draw and label this whole pic!

Investigate on Your Own- Pg. 84

• Fill in the blanks on the same page you did your catalyst

• Anatomy: Lesson 83- Synaptic Transmission Online Investigation-3/27-3/28

• http://learn.genetics.utah.edu/content/addiction/crossingdivide/

Get Ready for Notes Pg. 82-83Title: Synaptic Transmission

Step 1

INITIATION: The electric signal reaches the axon terminal of the presynaptic neuron.

Initiation Release Binding Effect Removal

Step 2RELEASE: The electric signal causes the synaptic vesicle to fuse with the membrane, releasing neurotransmitters into the synaptic cleft

Initiation Release Binding Effect Removal

Step 3

BINDING: Neurotransmitters bind to the receptors on the postsynaptic neuron.

Initiation Release Binding Effect Removal

Step 4EFFECT: Binding of neurotransmitters to the postsynaptic neuron causes a change in the postsynaptic neuron. For example, it may cause the signal to continue to the next neuron or to stop.

Initiation Release Binding Effect Removal

Step 5REMOVAL: The neurotransmitters are either recycled, removed, or deactivated from the synaptic cleft.

Initiation Release Binding Effect Removal

Part 3- Label your neuron

Presynaptic neuron (axon terminal)

Postsynaptic neuron (dendrite)

synapticvesicle

neurotransmitter

Postsynaptic receptor

Synaptic Transmission

Initiation Release Binding Effect Removal

Let’s Check It Out• https://www.youtube.com/watch?v=Tbq-KZaXiL4

WHOLE CLASS PRACTICE

#1

#2

presynaptic neuron

#3

vesicle

postsynaptic neuron

#6

neurotransmitter

#4synaptic cleft

#5

vesicle

#8

postsynaptic neuron

#7Postsynaptic receptor

#9neurotransmitter

Pg. 84Anatomy: Lesson 83- Synaptic Transmission Worksheet-3/27-3/28

Exit Ticket- Separate Sheet of Paper-turn into box when done