Questions and Answers
What does a neuron consist of?
What is the main function of nervous tissue?
To sense stimuli
Nervous tissue sets _______________ and transmits _______________ called __________.
stimuli, signals, nerve impulses
Nervous tissue contains ___________ or ____________, as well as support cells called ______________.
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What are neurons?
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A nerve cell consists of a ____________ and long extensions called ____________ and ________________.
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_____________ ____________ attached to the cell body in the nervous tissue transmits signals from place to place.
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What do neurons receive impulses from other neurons via?
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Which is often bundled together into nerves?
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Which of the following is NOT one of the four major categories of tissue?
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What are the four major categories of tissues in an animal's body?
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Which of the following levels of structure encompasses all the others?
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Which of the following correctly pairs a tissue with its function?
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What is the primary function of nervous tissue?
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What system describes organisms that continuously exchange chemicals and energy with their surroundings?
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What is the definition of anatomy?
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What is the definition of physiology?
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What is the definition of tissue?
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What is the definition of an organ?
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What is the definition of an organ system?
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What is the definition of an organism?
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What is homeostasis?
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What are three examples of homeostasis?
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Study Notes
Neurons and Nervous Tissue
- Neurons consist of dendrites, a cell body, and axons, which facilitate their main functions.
- Nervous tissue primarily senses stimuli and transmits signals throughout the body as nerve impulses.
- It contains neurons (nerve cells) and glial cells, which provide support and protection to neurons.
- Dendrites and axons, both extensions from the cell body, play key roles in signal transmission.
- Neurons are the basic units of the nervous system, responsible for communication and processing information.
- Axons are often bundled together to form nerves, enabling the efficient transmission of signals.
Tissue Classification
- Four major categories of animal tissues:
- Epithelial tissue (e.g., skin)
- Connective tissue (e.g., blood, tendons, bone)
- Muscle tissue (e.g., biceps, chest muscles)
- Nervous tissue (e.g., brain, spinal cord)
- Blood is not classified as one of the four major tissue categories.
Levels of Biological Organization
- The organism level of structure encompasses all other levels, including cells, tissues, and organs.
- Tissues are defined as groups of cells working together, while organs consist of multiple tissues collaborating for specific functions.
- Organ systems are composed of several organs working together to perform complex functions.
- An organism is defined as a complete living entity made up of various organ systems.
Functions and Definitions
- The primary function of nervous tissue is rapid communication, forming the body’s communication network.
- Anatomy is the study of the structures of organisms, contrasting with physiology, which examines their functions.
- Homeostasis is the process of maintaining a stable internal environment in response to changes, exemplified by:
- Seals excreting excess salt after consuming squid.
- Penguins regulating hormone levels to maintain blood glucose levels.
- Shivering response when exposed to cold temperatures without adequate clothing.
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Description
Test your knowledge of biology with this quiz focused on the functions and components of neurons and nervous tissue. Each question helps reinforce essential concepts that are critical for understanding the nervous system. Perfect for students mastering biology fundamentals!
