1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Step2247 [10]
3 years ago
15

Lesson 4: Muscle Fibers Muscles Essay I dont have time to start can somebody help me!!?

Health
1 answer:
vova2212 [387]3 years ago
4 0
Here is an example it is a good way to help you for your essay.

Our muscle tissue consists of fibers (cells) that are highly specialized for the active generation of force for our muscle contraction. Muscle tissue provides motion, maintenance of our posture, and heat production. On the basis of certain structural and functional characteristics, the muscle tissue that our body has is classified into three types: cardiac, smooth and skeletal.

Cardiac Muscle

Cardiac muscle tissue forms the bulk of the wall of the heart. Like skeletal muscle tissue, it is striated. Unlike skeletal muscle tissue its contraction is usually not under conscious control and is classed as involuntary.

Smooth Muscle

Smooth muscle tissue is located in the walls of hollow structures such as blood vessels, the stomach, intestines, and the bladder. Smooth muscle fibers are usually involuntary, and they are non-striated (smooth). Smooth muscle tissue, like skeletal and cardiac muscle tissue, can undergo hypertrophy (growth).

Skeletal Muscle

Skeletal muscle tissue is attached to our bones. It is striated; that is, the fibers (cells) contain alternating light and dark bands (striations) that are perpendicular to the long axes of the fibers. Skeletal muscle tissue can be made to contract or relax by conscious control (voluntary).

All skeletal muscle fibers are not alike in structure or function. For example, skeletal muscle fibers vary in colour depending on their content of Myoglobin (Myoglobin is found in muscle tissue, where it binds oxygen, helping to provide extra oxygen to release energy to power muscular contractions.) Skeletal muscle fibers contract with different velocities, depending on their ability to split Adenosine Triphosphate (ATP). Faster contracting fibers have greater ability to split ATP. In addition, skeletal muscle fibers vary with respect to the metabolic processes they use to generate ATP. They also differ in terms of the onset of fatigue. On the basis of various structural and functional characteristics, skeletal muscle fibers are classified into three types: Type I fibers, Type II B fibers and type II A fibers.

Type I Fibers

These fibers, also called slow twitch or slow oxidative fibers, contain large amounts of Myoglobin, many mitochondria and many blood capillaries. Type I fibers are red, split ATP at a slow rate, have a slow contraction velocity, very resistant to fatigue and have a high capacity to generate ATP by oxidative metabolic processes. Such fibers are found in large numbers in the postural muscles of the neck.

Type II A Fibers

These fibers, also called fast twitch or fast oxidative fibers, contain very large amounts of Myoglobin, very many mitochondria and very many blood capillaries. Type II A fibers are red, have a very high capacity for generating ATP by oxidative metabolic processes, split ATP at a very rapid rate, have a fast contraction velocity and are resistant to fatigue. Such fibers are infrequently found in humans.

Type II B Fibers

These fibers, also called fast twitch or fast glycolytic fibers, contain a low content of Myoglobin, relatively few mitochondria, relatively few blood capillaries and large amounts glycogen. Type II B fibers are white, geared to generate ATP by anaerobic metabolic processes, not able to supply skeletal muscle fibers continuously with sufficient ATP, fatigue easily, split ATP at a fast rate and have a fast contraction velocity. Such fibers are found in large numbers in the muscles of the arms.

You might be interested in
List the reasons why people may choose individual sports over team sports
Alchen [17]

Answer:

8769679ri7ri7roi

Explanation:

7 0
2 years ago
Read 2 more answers
A client who had intracavity radiation treatment for cervical cancer 1 month earlier reports small amounts of vaginal bleeding.
iren [92.7K]

Answer:

Normal Finding

Explanation:

In order to know more about the answer, it's best to learn what "intracavity radiation treatment" is.

Intracavity- This means occurring within a body cavity. This is commonly associated with cancer.

Intracavity radiation treatment- This is a type of radiation therapy that uses radioactive materials. This materials are placed inside <em>seeds, wires, needs and catheters,</em> which are inserted into the body cavity.

Radiation therapy- This is a type of cancer treatment that uses a high amount of radiation in order to kill the cancer cells. This can also be used in observation of body organs. In this case, the amount used is only small.

When it comes to cancer treatment, radiation therapy has a lot of side effects such as <em>fatigue, skin problems, dry mouth, nausea, hair loss, etc.</em>

The client above talks about small amounts of vaginal bleeding. This is a clue that the treatment was done inside the woman's reproductive organ. Oftentimes,<em> intracavity radiation is common in treating cervical cancer.  </em>The blood vessels are very sensitive that's why they bleed.

Small amount of bleeding is okay. Thus, the answer above is "Normal Finding."

Normal Finding- The outcome is normal for a particular situation. So, there's no need to worry.

6 0
3 years ago
Which of the following is a way HIV can be transmitted?
attashe74 [19]

Answer:

vaginal sex

Explanation:

8 0
2 years ago
List of cake decorating items.​
Levart [38]

Answer:

why do you need this information?

Explanation:

  • Turntable. To kick off our list of essential cake decorating tools is the turntable.  
  • Cake Scraper. Another tool I think is a must-have is a cake scraper. ...
  • Icing Spatulas.
  • Acrylic Disk.  
  • Quality Cake Pans.  
  • Cake Leveler.
  • Cake Lifter.  
  • Cake Boards.
  • Parchment paper.
  • Piping bag.
  • Drip bottle.
4 0
2 years ago
Read 2 more answers
Mengapakah teknik cpr yang digunakan ke atas bayi berbeza dengan orang dewasa?​
ale4655 [162]

Answer:

si

Explanation:

si

3 0
2 years ago
Other questions:
  • What is the ptp for the Unit 1 test review? Question 1 options: 1Advocate for Youth 2Work for health 3Advocate for Health 4Work
    7·1 answer
  • Daniel notices the following items while doing homework at his friend Carson's house: water bottle, sunscreen, cereal bars, and
    9·2 answers
  • Which two statements are true?Group of answer choices
    8·1 answer
  • 7. According to the DSM-5, _____________ symptoms include recurrent temper outbursts that are inappropriate for the situation a.
    5·1 answer
  • Imagine a complete dinner in front of you. dedscribe the process of digestion and excretion that will
    6·1 answer
  • Your environment can affect your health. Now that you have made a personal wellness plan,
    11·1 answer
  • Which part of the health triangle includes sharing feelings with others
    8·1 answer
  • Explain what causes the skin to burn in the sun?Explain why people should avoid the sun if taking a photosensitive medication?
    14·1 answer
  • 5 stages of conselling
    14·1 answer
  • 1. Briefly describe and define the Patient Bill of Rights and the Health Insurance Portability and Accountability Act (HIPAA). I
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!