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Chapter 24: Problem 13

The part of a neuron that contains the nucleus is the. a. axon b. dendrite c. cell body d. oligodendrocyte

Short Answer

Expert verified
c. cell body

Step by step solution

01

Identify Key Terms

Understand the key parts of a neuron mentioned in the question: axon, dendrite, cell body, and oligodendrocyte.
02

Recall Neuron Structure

Recall that the structure of a neuron includes the cell body (soma), dendrites, and an axon. The oligodendrocyte is not a part of the neuron but rather a type of glial cell.
03

Locate the Nucleus

The nucleus of a neuron is located in the cell body. The cell body contains the nucleus and is responsible for maintaining the life of the cell.
04

Correct Answer Identification

Based on the information above, determine that the cell body is the part of the neuron that contains the nucleus.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Cell Body
The cell body, also known as the soma, is a crucial part of a neuron. It houses essential components that maintain the neuron's health and functions.

Within the cell body, you'll find the nucleus, which is vital for the cell's operations. The cell body is responsible for synthesizing proteins and generating energy.

The cell body ensures the neuron's health by processing the signals it receives from other neurons.

It also sends these signals down the axon, ensuring communication within the nervous system.

This critical role makes the cell body indispensable in the neuron anatomy.
Neuron Anatomy
Neuron anatomy is complex yet fascinating. Understanding its structure helps in grasping how the nervous system functions.

Key parts of a neuron include:
  • Cell Body (Soma): The central part containing the nucleus.
  • Dendrites: Tree-like structures that receive messages from other neurons.
  • Axon: A long, slender projection that transmits signals to other neurons or muscles.
The neuron has a unique shape that aids its function of transmitting information quickly and efficiently.

Dendrites and axons are covered with a membrane that contains ion channels, crucial for conducting electrical impulses.

Synapses, gaps between neurons, allow chemicals to pass from one neuron to another, enabling communication throughout the body.
Nucleus Location
The nucleus is a critical component of a neuron, and its specific location plays a significant role.

In neurons, the nucleus is located within the cell body, or soma.

Here, it oversees the cell's activities, including the synthesis of proteins and the maintenance of the cell's machinery.

By being central, the nucleus ensures that the neuron's functions are properly regulated and controlled.

This positioning allows the cell body to efficiently process and relay information to other parts of the neuron and adjacent neurons.

Thus, the location of the nucleus is essential for the proper functioning and health of the neuron.

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Most popular questions from this chapter

To what does the term 鈥渆quilibrium鈥� refer in the context of organismal homeostasis? a. control mechanisms that amplify a response b. control mechanisms that increase or decrease a stimulus c. the target point in homeostasis d. body functions are maintained within a given range

A friend sneaks up behind you and scares you, speeding up your heart rate. How and why did this event influence cardiac muscle contraction? a. Muscle contraction speed increases as the enteric nervous system responds to local conditions and makes muscle contraction speed up or slow down. b. Muscle contraction speed increases as the autonomic nervous system responds to local conditions and makes muscle contraction speed up or slow down. c. Muscle contraction speed increases as the somatic nervous system responds to local conditions and makes muscle contraction speed up or slow down. d. Muscle contraction speed increases as the central nervous system responds to local conditions and makes muscle contraction speed up or slow down.

How can an environmental change result in an alteration of gland secretion? a. A receptor detects change, sends a signal to the control center, which sends a signal to the gland to inhibit the gland secretions. b. A receptor detects change, sends a signal to the control center, which sends a signal to the gland to increase the secretions of the gland. c. A receptor detects change and sends a signal to the effector directly ,which in this case is the gland. d. A receptor detects change, sends a signal to the control center, which in turn sends a signal to the effector, which in this case is the gland.

Why is hibernation not a good option for small animals like the hummingbirds to help reduce its metabolic rate and conserve its need for food? a. Hummingbirds have a fast metabolic rate and a large surface area to volume ratio. b. Hummingbirds are unable to lower their metabolic rate and body temperature to enter hibernation. c. Hummingbirds migrate south for the winter. d. Hummingbirds live a short life.

Proper blood glucose levels are necessary to maintain cellular function, because glucose is fuel for cells. Glucagon is an important component of blood glucose homeostasis, which is maintained by a negative feedback loop. Describe the role of glucagon in blood glucose homeostasis. a. When blood sugar is low, glucose and ATP produce glycogen. Excess blood sugar stimulates the release of glucagon, which in turn stimulates glycogen release to increase blood glucose levels. b. When there is excess blood sugar, excess glucose and ATP produce glucagon. A drop in blood glucose level stimulates the release of glycogen, which in turn stimulates glycogen release to increase blood glucose levels. c. When there is excess blood sugar, the excess glucose and ATP produce glycogen. A drop in blood glucose level stimulates the release of glucagon, which in turn stimulates the release of glycogen to increase blood glucose levels. d. When there is excess blood sugar, the excess glucose and ATP produce glycogen. A drop in blood glucose level stimulates the release of glucagon, which in turn releases more glucagon to increase blood glucose levels.
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