A Trivia Quiz On Muscle Anatomy!

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| By Ahmad543x

Ahmad543x

Community Contributor

Quizzes Created: 1 | Total Attempts: 175

Questions: 8 | Attempts: 175 | Updated: Mar 20, 2023

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Muscles are made of specialized cells called muscle fibers. The predominant function of muscle fibers is contractibility, which is responsible for all the body movements and the protection of organs. This quiz is about the anatomy of the human muscle system. So, attempt all the nine questions in this trivia to test how much do you know about the topic.

Questions and Answers

1.

Which one never regenerates?
- A.
  
  Smooth muscle
- B.
  
  Skeletal muscle
- C.
  
  Cardiac muscle
Correct Answer
C. Cardiac muscle

Explanation
Cardiac muscle is the correct answer because unlike smooth muscle and skeletal muscle, cardiac muscle cells have a limited ability to regenerate. When cardiac muscle cells are damaged, they are typically replaced by scar tissue rather than new muscle cells. This is why conditions such as heart attacks can lead to permanent damage to the heart muscle. In contrast, smooth muscle and skeletal muscle have the ability to regenerate and repair themselves to some extent after injury.

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2.

Which one has the largest dimeter?
- A.
  
  Skeletal muscle
- B.
  
  Smooth muscle
- C.
  
  Cardiac muscle
Correct Answer
A. Skeletal muscle

Explanation
Skeletal muscle has the largest diameter compared to smooth muscle and cardiac muscle. This is because skeletal muscle is responsible for voluntary movements and needs to generate more force, hence requiring larger and stronger muscle fibers. Smooth muscle and cardiac muscle, on the other hand, have smaller diameters as they are involved in involuntary movements and have different functions in the body.

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3.

The shape of smooth muscle is:
- A.
  
  Circular
- B.
  
  Cylindrical
- C.
  
  Fusiform
Correct Answer
C. Fusiform

Explanation
Smooth muscle is a type of muscle tissue found in the walls of organs and structures such as blood vessels and the digestive system. It is characterized by its ability to contract and relax involuntarily. The shape of smooth muscle is described as fusiform, which means it is elongated and tapered at both ends. This shape allows smooth muscle cells to generate force in a specific direction, facilitating their role in various bodily functions such as peristalsis and blood flow regulation.

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4.

Cardiac muscle has:
- A.
  
  Numerous mitochondria
- B.
  
  Few myofibrils
- C.
  
  Intercalated discs
- D.
  
  All above
Correct Answer
D. All above

Explanation
Cardiac muscle has numerous mitochondria, which are responsible for producing energy for the muscle to contract. It also has few myofibrils, which are the contractile units of the muscle. Additionally, cardiac muscle has intercalated discs, specialized junctions that allow for synchronized contraction of the muscle fibers. Therefore, all of the given options are correct.

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5.

The branching in muscle happen in:
- A.
  
  Smooth muscle
- B.
  
  Skeletal muscle
- C.
  
  Cardiac muscle
Correct Answer
C. Cardiac muscle

Explanation
The branching in muscle occurs in cardiac muscle. Cardiac muscle is found only in the heart and is responsible for the contraction and relaxation of the heart chambers. The branching nature of cardiac muscle allows for coordinated and synchronized contraction of the heart, ensuring efficient pumping of blood throughout the body. Smooth muscle and skeletal muscle do not typically exhibit branching to the same extent as cardiac muscle.

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6.

Cytoplasm in smooth muscle is:
- A.
  
  Acidophilic
- B.
  
  Basophilic
- C.
  
  Non above
Correct Answer
A. AcidopHilic

Explanation
Smooth muscle cells contain a large amount of cytoplasm, which appears acidophilic due to the presence of abundant mitochondria and myofilaments. Acidophilic refers to the affinity of the cytoplasm for acidic stains, such as eosin, which gives it a pink or red color when stained. This staining characteristic is due to the high concentration of proteins and other acidophilic substances in the cytoplasm. Therefore, the correct answer is acidophilic.

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7.

Which one is multi nuclei?
- A.
  
  Smooth muscle
- B.
  
  Skeletal muscle
- C.
  
  caradic muscle
Correct Answer
B. Skeletal muscle

Explanation
Skeletal muscle is the correct answer because it is the only type of muscle that contains multiple nuclei. Smooth muscle and cardiac muscle have a single nucleus per cell. Skeletal muscle, on the other hand, is made up of long, multinucleated cells called muscle fibers. These multiple nuclei are necessary for the muscle fiber to efficiently carry out its functions, such as muscle contraction and repair.

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8.

Which one of the following not striated?
- A.
  
  Cardiac muscle
- B.
  
  Skeletal muscle
- C.
  
  Smooth muscle
Correct Answer
C. Smooth muscle

Explanation
Smooth muscle is the correct answer because it is the only type of muscle that is not striated. Both cardiac muscle and skeletal muscle have a striated appearance due to the arrangement of contractile proteins within the muscle fibers. Smooth muscle, on the other hand, lacks this striated appearance and has a more uniform and smooth appearance. Smooth muscle is found in the walls of organs and blood vessels and is responsible for involuntary movements.

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Current Version
Mar 20, 2023

Quiz Edited by
ProProfs Editorial Team
Dec 13, 2016

Quiz Created by
Ahmad543x

A Trivia Quiz On Muscle Anatomy!

Which one never regenerates?

Which one has the largest dimeter?

The shape of smooth muscle is:

Cardiac muscle has:

The branching in muscle happen in:

Cytoplasm in smooth muscle is:

Which one is multi nuclei?

Which one of the following not striated?