G. Answer the following in short.
1. Write any two functions of epithelial tissues.
2. Explain the structure and function of a neuron.
3. What is the difference between a white fibrous tissue and a yellow fibrous tissue?
H. Answer the following in detail.
1. Name the various types of animal tissues and state their functions.
2. Explain the structure and functions of various types of epithelial tissue.
3. Describe the types of muscular tissue with examples.
4. Describe connective tissue. How is-it different from other tissues?
Answers
1) Four functions may be attributed to epithelial tissues: (1) protection of the underlying tissues, (2) absorption, (3) secretion, and (4) reception of sensory stimuli.
2) Structure: The primary components of the neuron are the soma (cell body), the axon (a long slender projection that conducts electrical impulses away from the cell body), dendrites (tree-like structures that receive messages from other neurons), and synapses (specialized junctions between neurons).
Function:
- Receive signals (or information)
- Integrate incoming signals (to determine whether or not the information should be passed along)
- Communicate signals to target cells (other neurons or muscles or glands)
3) White fibres are made of collagen while yellow are made of elastin. White fibres are white and shiny while yellow are just yellow. White Fibres are strong and tough while yellow ones are not that strong. White fibres are extensile where as yellow are more elastic.
H) 1)
- Epithelial tissue forms the outer layer of the body and also lines many of the bodies cavities where it has a protective function.
- Connective tissue assists in support and protection of organs and limbs and depending on the location in the body it may join or separate organs or parts of the body.
- Muscle tissue enables various forms of movement, both voluntary and involuntary.
- Nerve tissue is responsible for the carrying of electrical and chemical signals and impulses from the brain and central nervous system to the periphery, and vice versa.
2) HERE'S THE LINK: https://courses.lumenlearning.com/boundless-ap/chapter/epithelial-tissue/
3) https://courses.lumenlearning.com/boundless-ap/chapter/muscular-tissue/
4) They connect, bind and support all other tissues of the body.
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