Bio 201 Lab 9
Lab Report: Exercise 10: Organization of Nervous Tissue
Purpose: What is the purpose of this exercise? Are there any safety concerns associated with this exercise? If so, list what they are and what precautions should be taken. To understand the structure and function of multipolar neuron,unipolar and bipolar neurons. Also to identify the structures of a nerve. There are no safety concerns for this lab.
Step 1: Relates to Lab Exercise 10/Activity 1, 3, and 4.
Assignment 1:
Write a brief description of the three slides (Neuron, Spinal Cord Smear and C.S of Myelinated Nerve Fibers) as though you were explaining it to someone who cannot see the slide.
Neuron- There is a reddish rounded shape with lighter thin looking branches these are probably the axon terminals or dendrites. I am thinking this is a multipolor neuron. The reddish rounded figure is the nucleus. There are smaller darker dot, which I am guessing could be the axons.
Spinal Cord Smear- A large purple figure with bundles of darker spots, which I believe to be chromatin. The cytoplasm is visible as well as darker purple scattered Nissl bodies. I am not sure I can identify the axon.
C.S of Myelinated Nerve Fibers- There an alternating patterns of blue and pink sheaths running horizontally. There is red nuclei. The lighter area I can identify is the vesicular myelin.
Assignment 2:
Answer to the questions in Lab Report: Exercise 10: Organization of Nervous Tissue- Activity 1 ,3 AND 4. You can skip answering questions for activities 2 !
Activity 1: Multipolar Neurons
Observations:
Sketch your observations through the microscope of the neuron, the ox spinal cord smear, and the teased myelinated nerve Please describe what you observed on each slide.
Questions:
A. What is the function of a neuron? A neuron secretes chemicals to stimulate other cells. Its function is to produce and transmit action potentials
B. What is the difference between a neuron and a nerve? A nerve is a bundle of axons. A
Purpose: What is the purpose of this exercise? Are there any safety concerns associated with this exercise? If so, list what they are and what precautions should be taken. To understand the structure and function of multipolar neuron,unipolar and bipolar neurons. Also to identify the structures of a nerve. There are no safety concerns for this lab.
Step 1: Relates to Lab Exercise 10/Activity 1, 3, and 4.
Assignment 1:
Write a brief description of the three slides (Neuron, Spinal Cord Smear and C.S of Myelinated Nerve Fibers) as though you were explaining it to someone who cannot see the slide.
Neuron- There is a reddish rounded shape with lighter thin looking branches these are probably the axon terminals or dendrites. I am thinking this is a multipolor neuron. The reddish rounded figure is the nucleus. There are smaller darker dot, which I am guessing could be the axons.
Spinal Cord Smear- A large purple figure with bundles of darker spots, which I believe to be chromatin. The cytoplasm is visible as well as darker purple scattered Nissl bodies. I am not sure I can identify the axon.
C.S of Myelinated Nerve Fibers- There an alternating patterns of blue and pink sheaths running horizontally. There is red nuclei. The lighter area I can identify is the vesicular myelin.
Assignment 2:
Answer to the questions in Lab Report: Exercise 10: Organization of Nervous Tissue- Activity 1 ,3 AND 4. You can skip answering questions for activities 2 !
Activity 1: Multipolar Neurons
Observations:
Sketch your observations through the microscope of the neuron, the ox spinal cord smear, and the teased myelinated nerve Please describe what you observed on each slide.
Questions:
A. What is the function of a neuron? A neuron secretes chemicals to stimulate other cells. Its function is to produce and transmit action potentials
B. What is the difference between a neuron and a nerve? A nerve is a bundle of axons. A