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Biology

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Topic 5: Introduction to the Nervous System

1.​ Define homeostasis and explain how it is maintained through feedback
mechanisms.
2.​ Differentiate between negative and positive feedback loops using both household
and physiological examples.
3.​ Compare how the nervous and endocrine systems regulate body functions,
highlighting speed and mode of communication.
4.​ Describe the three defining characteristics of neurons and explain why excitability
represents an evolutionary advantage.
5.​ Identify the parts of a neuron (cell body, dendrites, axon, synapse) and explain
how each contributes to neural communication.
6.​ Predict the functional consequences of damage to dendrites versus damage to
an axon.
7.​ Contrast multipolar, bipolar, and pseudounipolar neurons and predict where each
type is likely to be found.
8.​ Explain how myelination by Schwann cells and oligodendrocytes influences
signal conduction.
9.​ Analyze how loss of myelin in a disease state would impact neural
communication.
10.​Distinguish between neurons and neuroglia and explain their complementary
roles in nervous tissue.
11.​Compare the central nervous system and peripheral nervous system in terms of
structure and function.
12.​Predict how information flow would be altered if integration did not occur in the
central nervous system.
13.​Explain the organization of nerves, including endoneurium, perineurium, and
epineurium.
14.​Differentiate between cranial and spinal nerves in terms of number, location, and
function.
15.​Contrast a nerve, neuron, and ganglion, and evaluate where you would expect to
find each within the body.


Topic 6: Neural Circuits

1.​ Define the functional classifications of neurons (afferent, interneuron, efferent)
and describe the role each plays in a circuit.
2.​ Distinguish structural neuron types (multipolar vs. pseudounipolar) and explain
how their structure relates to function.

, 3.​ Identify the major parts of a neuron (dendrites, soma, axon) and describe how
each contributes to circuit activity.
4.​ Explain how multiple neurons function together in a neural circuit to enable
communication and regulation of homeostasis.
5.​ Compare and contrast sensory, motor, and interneurons in terms of their location
within the nervous system.
6.​ Predict how disruption of an afferent neuron would alter the circuit’s ability to
respond to stimuli.
7.​ Explain the role of the spinal cord in linking the peripheral and central nervous
systems within circuits.
8.​ Identify the dorsal, ventral, and lateral horns of the spinal cord and describe the
type of information processed in each.
9.​ Compare and contrast dorsal and ventral roots, including the role of the dorsal
root ganglion.
10.​Predict the outcome if the ventral root of a spinal nerve is damaged.
11.​Identify the connective tissue layers (dura mater, arachnoid mater, pia mater) that
protect the spinal cord.
12.​Compare and contrast the functions of the meninges and the subarachnoid
space.
13.​Explain the importance of cerebrospinal fluid circulation for spinal cord and brain
protection.
14.​Differentiate between gray matter and white matter in the spinal cord and brain,
including their typical locations.
15.​Analyze how the organization of white and gray matter supports the integration
and transmission of neural signals.
16.​Evaluate how injury to the spinal cord at different levels would affect circuit
communication between the PNS and CNS.


Topic 7: Resting Membrane Potential

1.​ Define the resting membrane potential (RMP) and describe its typical value in
neurons.
2.​ Explain why electrical signaling requires ion gradients across the plasma
membrane.
3.​ Define voltage, current, and resistance and explain how each applies to neuronal
membranes.
4.​ Describe the uneven distribution of Na⁺, K⁺, and Cl⁻ across the membrane and
how this establishes electrochemical gradients.
5.​ Predict the direction of Na⁺ and K⁺ movement based on their electrochemical
gradients.

Información del documento

Subido en
7 de octubre de 2025
Número de páginas
5
Escrito en
2025/2026
Tipo
Otro
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