Comprehensive Study Guidance for Human Anatomy Nervous System Exam (BIOL 120)

Q1. What are the two basic divisions of the nervous system and what gross anatomical structures belong to each?

Background

Topic: Organization of the Nervous System

This question tests your understanding of the structural divisions of the nervous system and the major anatomical components associated with each division.

Key Terms:

• Nervous System (NS)

• Central Nervous System (CNS)

• Peripheral Nervous System (PNS)

Step-by-Step Guidance

1. Start by recalling the two main divisions of the nervous system. Think about how the nervous system is organized based on location and function.

2. For each division, list the major anatomical structures that are included. Consider which structures are found in the center of the body versus those that extend outward.

3. Think about the roles of each division: which one is responsible for processing information, and which one is responsible for transmitting signals to and from the rest of the body?

4. Make a simple chart or diagram to help visualize which structures belong to each division.

Try solving on your own before revealing the answer!

Q2. What are the three overlapping functions of the Nervous System?

Background

Topic: Functional Organization of the Nervous System

This question is about the main roles the nervous system plays in the body, often described as overlapping or sequential functions.

Key Terms:

• Sensory Input

• Integration

• Motor Output

Step-by-Step Guidance

1. Recall the sequence of events that occur when the body responds to a stimulus (e.g., touching a hot surface).

2. Identify the function that involves detecting changes inside or outside the body.

3. Determine which function involves processing and interpreting sensory input.

4. Identify the function that involves activating effector organs to cause a response.

Try solving on your own before revealing the answer!

Q3. Know the functional organization of the PNS (draw a flow chart for yourself & be able to give specific examples of each = name what regions of the body are being innervated):

Background

Topic: Peripheral Nervous System (PNS) Functional Organization

This question asks you to break down the PNS into its functional divisions and understand which body regions or organs are served by each.

Key Terms:

• Somatic Sensory Division

• Visceral Sensory Division

• Somatic Motor Division

• Visceral Motor Division (Autonomic Nervous System)

Step-by-Step Guidance

1. Start by dividing the PNS into sensory (afferent) and motor (efferent) divisions.

2. For the sensory division, identify the two main types: somatic and visceral. Think about what regions or organs each receives input from.

3. For the motor division, identify the two main types: somatic and visceral (autonomic). Consider which effectors each sends commands to.

4. List examples of body regions or organs for each division (e.g., skin, muscles, internal organs).

Try solving on your own before revealing the answer!

Q4. Nervous Tissue: What is the difference between neurons and neuroglia?

Background

Topic: Cellular Components of Nervous Tissue

This question focuses on distinguishing between the two main cell types in nervous tissue and their respective roles.

Key Terms:

• Neurons

• Neuroglia (Glial Cells)

Step-by-Step Guidance

1. Define what a neuron is and its primary function in the nervous system.

2. Define what neuroglia are and their general functions.

3. Compare and contrast the characteristics of neurons and neuroglia (e.g., ability to conduct impulses, ability to divide, support roles).

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Q5. What are the special characteristics of neurons?

Background

Topic: Neuron Structure and Function

This question asks you to recall the unique properties that distinguish neurons from other cell types.

Key Terms:

• Longevity

• Amitotic (non-dividing)

• High Metabolic Rate

Step-by-Step Guidance

1. List the main characteristics that make neurons unique (think about their lifespan, ability to divide, and energy requirements).

2. For each characteristic, provide a brief explanation of why it is important for neuron function.

Try solving on your own before revealing the answer!