Question

What is Cardiac muscle tissue. Where is it located. What are its unique features. What are the similarities between 1) Cardiac and skeletal muscles 2) Cardiac and smooth muscles 3) Cardiac and Non-striated muscles.
Wat are some other contractile cells. Give 8 advantages of neurons (complex pls).

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Answer 1

$Hey friend$ ^_^

Here is your answer:

<> Cardiac muscle is an involuntary muscle found only in the walls of the heart.

<> Cardiac muscles have tissues which are striated, uninucleated and branched. They are short and can contract without outside stimulation. They don't get tired easily.

<> Similarities between:

1) Cardiac and skeletal muscles - they both have striated tissues.

2) Cardiac and smooth muscles - they both are involuntary and uninucleated.

3) Cardiac and non-striated muscles - they both are involuntary.

<> Neurons:

- They is concerned with the perception and responses of animals.

- They send impulses from the brain and the spinal cord to the other body parts and vise versa.

- They play a major role in a reflex action.

- It coordinates actions that we do in our daily life.

$Hope it helps u!!!$

Answer 2

Here is your answer
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• Cardiac Muscle •

- Cardiac Muscles are auto-excitable muscles found in heart only.
- According to their structure they seems striated type of muscle. Their muscle fibres show branching and have long and cylindrical shape.
- According to their functions it seems smooth muscle type.
- These muscles have good supply of both types of nerves, central nerve and autonomic nerves as well.
- These muscles are auto-excitable so they can not be controlled by will power of animals.
- These muscles are uninucleated (cells having one nucleus) having light and dark band.
- These muscles have very reach supply of blood and they never fatigued.

• Similarities between Cardiac and Skeleton Muscle •

- Both are cylindrical shaped.

- In both muscles light and dark bands are present.

- Both have rich blood supply.

- Both can be controlled by Central Nervous System.

• Similarities between Cardiac and Non-Striated Muscles •

- Cell present in both muscles are uninucleated.

- Both can be controlled by Peripheral Nervous System.

- Both are straited as their cells are arranged in form of bundle.

• Contractile Cells •

Sinoatrial Node (SA Node) is a contractile cell present in Heart. It is found in the right atrium of human heart (in some other mammals also) just below the opening of Superior Vena Cava. It generates impulse and transmitted through AV Node, Bundle of His and Purkinje fibres to the complete heart muscle. Due to these impulse heart contracts in a rhythmic manner. These cells are found in conduction system of amphibians and reptiles (like in American Alligator) also.

• Advantages of Neurons •

- Neurons are functional and structural unit of nervous system.
- It is the longest cells of the body does transmission of nerve impulses. These impluses help to get senses about various activities occuring in our surroundings. The speed of impluse transmission is very high (almost 100 - 130 meter / sec). Neuron help to receive various stimulus from environment through receptor present at nerve endings and also helps to give response according to the stimulus. These cells also helps to maintain muscular and some physiological activity according to the order instructed by Brain. It also helps in recognition of smell and taste.

The Nerves connect all the crucial components to one large system for maintaining balance between physical and mental relationships. They are important in different roles which allows body to perform motor functions, visual recognition, perceptions, etc. They overall assist the niche of the basic body.
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Thanks !!!