Part 1 Flashcards

1
Q
  1. Skeletal muscle is responsible for _______________________ movements.
  2. Smooth muscle has a _______________________ appearance.
  3. Cardiac muscle is found in the _______________________.
  4. The main function of cardiac muscle is to _______________________.
  5. Skeletal muscle has a _______________________ structure.
A
  1. voluntary
  2. non-striated
  3. heart
  4. pump blood
  5. unbranched
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2
Q

1.Muscles have four main properties: contractility, irritability, _______________________, and extensibility.

2.Skeletal muscle fibers are _______________________.

3.Smooth muscle is responsible for _______________________ movements.

4.Cardiac muscle has a _______________________ contraction.

5.Skeletal muscle is attached to _______________________.

A

1.elasticity
2.multinucleated
3.involuntary
4.fast and powerful
5.bones

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3
Q
  1. The somatic nervous system supplies nerves to _______________________ muscle.
  2. Cardiac muscle is controlled by the _______________________ nervous system.
  3. The tendons of skeletal muscles connect to the _______________________.
  4. Smooth muscle is found in the walls of _______________________.
  5. The autonomic nervous system regulates the activity of _______________________ muscle.
A
  1. skeletal
  2. autonomic
  3. bones
  4. blood vessels
  5. smooth
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4
Q

1.Skeletal muscle fibers are surrounded by a layer of connective tissue called the _______________________.

2.Cardiac muscle cells are connected by _______________________ discs.

  1. The epimysium is the outermost layer of connective tissue surrounding a _______________________.

4.Skeletal muscles are responsible for maintaining _______________________.

5.Smooth muscle contractions are typically _______________________ and sustained.

A

1.endomysium
2.intercalated
3.muscle
4.posture
5.slow

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5
Q

Here are the fill-in-the-blank questions:

  1. The primary function of skeletal muscles is to provide _______________________.
  2. Cardiac muscle is a type of _______________________ muscle.
  3. The autonomic nervous system controls the activity of _______________________ muscle.
  4. Skeletal muscles are attached to bones by _______________________.
  5. Smooth muscle is found in the walls of _______________________.
A
  1. movement
  2. involuntary
  3. smooth
  4. tendons
  5. hollow organs
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6
Q

1.The contraction of skeletal muscles is controlled by the _______________________ nervous system.

2.Cardiac muscle cells are connected by specialized structures called _______________________.

3.The epimysium is a layer of connective tissue that surrounds a _______________________.

4.Skeletal muscles play a crucial role in maintaining _______________________.

5.The contraction of smooth muscle is typically _______________________ and sustained.

A

1.somatic
2.intercalated discs
3.muscle
4. posture
5.slow

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7
Q

Here are the true or false questions:

  1. Skeletal muscles are responsible for involuntary movements.
  2. Cardiac muscle is found in the digestive tract.
  3. Smooth muscle is responsible for voluntary movements.
  4. Skeletal muscles are attached to bones.
  5. Cardiac muscle has a non-striated appearance.
A
  1. False
  2. False
  3. False
  4. True
  5. False
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8
Q

Here are the true or false questions:

1.Skeletal muscle fibers are multinucleated.

2.Smooth muscle is found in the walls of blood vessels.

3.The autonomic nervous system controls the activity of skeletal muscle.

4.Cardiac muscle is responsible for pumping blood throughout the body.

5.Skeletal muscles are responsible for regulating body temperature.

A

1.True
2.True
3.False
4.True
5.True

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9
Q

Here are more multiple-choice questions:

  1. Which of the following is a characteristic of skeletal muscle?
    A) Non-striated appearance
    B) Involuntary movements
    C) Multinucleated fibers
    D) Slow contractions
  2. Which type of muscle is responsible for regulating blood pressure?
    A) Skeletal Muscle
    B) Smooth Muscle
    C) Cardiac Muscle
    D) None of the above
  3. What is the function of the perimysium?
    A) To surround individual muscle fibers
    B) To surround bundles of muscle fibers
    C) To surround the entire muscle
    D) To attach muscles to bones
  4. Which of the following is a characteristic of cardiac muscle?
    A) Non-striated appearance
    B) voluntary movements
    C) Branched structure
    D) Slow contractions
  5. Which type of muscle is responsible for regulating body temperature?
    A) Skeletal Muscle
    B) Smooth Muscle
    C) Cardiac Muscle
    D) None of the above
  6. What is the function of the endomysium?
    A) To surround individual muscle fibers
    B) To surround bundles of muscle fibers
    C) To surround the entire muscle
    D) To attach muscles to bones
  7. Which of the following is a characteristic of smooth muscle?
    A) Striated appearance
    B) Multinucleated fibers
    C) Fast and powerful contractions
    D) Non-striated appearance
  8. Which type of muscle is responsible for pumping blood throughout the body?
    A) Skeletal Muscle
    B) Smooth Muscle
    C) Cardiac Muscle
    D) None of the above
  9. What is the function of the fascicles?
    A) To surround individual muscle fibers
    B) To surround bundles of muscle fibers
    C) To surround the entire muscle
    D) To attach muscles to bones
  10. Which of the following is a characteristic of skeletal muscle contractions?
    A) Slow and sustained
    B) Fast and powerful
    C) Rapid and rhythmic
    D) Weak and intermittent
A
  1. Multinucleated fibers
  2. Smooth Muscle
  3. To surround bundles of muscle fibers
  4. Branched structure
  5. Skeletal Muscle
  6. To surround individual muscle fibers
  7. Non-striated appearance
  8. Cardiac Muscle
  9. To surround bundles of muscle fibers
  10. Fast and powerful
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10
Q

multiple-choice questions:

  1. What is the primary function of the muscular system?
    A) To regulate body temperature
    B) To facilitate digestion
    C) To provide movement and support
    D) To pump blood throughout the body
  2. Which type of muscle is responsible for the beating of the heart?
    A) Skeletal Muscle
    B) Smooth Muscle
    C) Cardiac Muscle
    D) None of the above
  3. What is the name of the layer of connective tissue that surrounds the entire muscle?
    A) Epimysium
    B) Perimysium
    C) Endomysium
    D) Fascia
  4. Which of the following is a characteristic of smooth muscle?
    A) Striated appearance
    B) Multinucleated fibers
    C) Fast and powerful contractions
    D) Non-striated appearance
  5. What is the function of the tendons?
    A) To attach muscles to bones
    B) To surround individual muscle fibers
    C) To surround bundles of muscle fibers
    D) To surround the entire muscle
  6. Which type of muscle is responsible for regulating blood pressure?
    A) Skeletal Muscle
    B) Smooth Muscle
    C) Cardiac Muscle
    D) None of the above
  7. What is the name of the layer of connective tissue that surrounds individual muscle fibers?
    A) Epimysium
    B) Perimysium
    C) Endomysium
    D) Fascia
  8. Which of the following is a characteristic of cardiac muscle?
    A) Non-striated appearance
    B) voluntary movements
    C) Branched structure
    D) Slow contractions
  9. What is the function of the autonomic nervous system in relation to muscle tissue?
    A) To control voluntary movements
    B) To regulate involuntary movements
    C) To facilitate digestion
    D) To pump blood throughout the body
  10. Which type of muscle is responsible for facilitating digestion?
    A) Skeletal Muscle
    B) Smooth Muscle
    C) Cardiac Muscle
    D) None of the above
A

Here are the answers:

  1. C) To provide movement and support
  2. C) Cardiac Muscle
  3. A) Epimysium
  4. D) Non-striated appearance
  5. A) To attach muscles to bones
  6. B) Smooth Muscle
  7. C) Endomysium
  8. C) Branched structure
  9. B) To regulate involuntary movements
  10. B) Smooth Muscle
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11
Q
  1. What are the four main properties of muscle tissue?
  2. What are the three main types of muscles?
  3. What is the function of the epimysium in a skeletal muscle?
  4. Describe the structure of a skeletal muscle fiber.
A
  1. The four main properties of muscle tissue are contractility, irritability, elasticity, and extensibility.
  2. The three main types of muscles are skeletal, cardiac, and smooth muscles.
  3. The epimysium is the outermost layer of connective tissue that surrounds a skeletal muscle.
  4. A skeletal muscle fiber is a long, multinucleated cell that contains visible sarcomeres.
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12
Q

1.What is the difference between the somatic and autonomic nervous systems in relation to muscle control?

2.What is the function of smooth muscle in the digestive tract?

3.Describe the structure and function of cardiac muscle.

4.What is the difference between striated and non-striated muscle tissue?

5.What is the function of the perimysium in a skeletal muscle?

6.How do skeletal, smooth, and cardiac muscles differ in terms of their contractility?

A

1.The somatic nervous system controls voluntary movements, whereas the autonomic nervous system controls involuntary movements.

2.Smooth muscle in the digestive tract is responsible for peristalsis and regulating digestive tract movement.

3.Cardiac muscle is a type of muscle tissue that is striated, branched, and responsible for pumping blood throughout the body.

4.The primary difference between striated and non-striated muscle tissue is that striated muscle tissue has visible sarcomeres.

5.The perimysium is a layer of connective tissue that surrounds fascicles in a skeletal muscle.

6.Skeletal muscles exhibit fast and powerful contractions, smooth muscles exhibit slow and sustained contractions, and cardiac muscles exhibit fast and powerful contractions with rhythmic contractions.

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13
Q

Difference between smooth, skeleton and cardiac muscle

A

Skeletal Muscle

  1. Location: Attached to bones, present in limbs, trunk, and head
  2. Typical Structure: Striated, with visible sarcomeres, and a well-defined tendon
  3. Nerve Supply: Somatic nervous system, specifically motor neurons from the spinal cord or brainstem
  4. Number of Nuclei: Multinucleated, with up to 100 nuclei per fiber
  5. Branching: Branched, with multiple branches that allow for a greater range of motion
  6. Function: Responsible for voluntary movements, maintaining posture, and regulating body temperature
  7. Contractility: Fast, powerful contractions

Smooth Muscle

  1. Location: Found in internal organs, such as digestive tract, blood vessels, and airways
  2. Typical Structure: Non-striated, without visible sarcomeres, and a less defined tendon
  3. Nerve Supply: Autonomic nervous system, specifically sympathetic and parasympathetic nerves
  4. Number of Nuclei: Mononucleated, with a single nucleus per fiber
  5. Branching: Unbranched, with a single, spindle-shaped fiber
  6. Function: Responsible for involuntary movements, such as peristalsis, blood pressure regulation, and airway constriction
  7. Contractility: Slow, sustained contractions

Cardiac Muscle

  1. Location: Found in the heart, specifically in the atria and ventricles
  2. Typical Structure: Striated, with visible sarcomeres, and intercalated discs
  3. Nerve Supply: Autonomic nervous system, specifically sympathetic and parasympathetic nerves, with some intrinsic regulation
  4. Number of Nuclei: Mononucleated, with a single nucleus per fiber
  5. Branching: Branched, with multiple branches that allow for a coordinated contraction of the heart muscle
  6. Function: Responsible for pumping blood throughout the body
  7. Contractility: Fast, powerful contractions, with some unique features, such as the ability to generate rhythmic contractions
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14
Q
  1. Describe the four main properties of muscle tissue and explain their importance in muscle function.
A

The four main properties of muscle tissue are contractility, irritability, elasticity, and extensibility.

Contractility refers to the ability of muscle tissue to contract and generate force. This property allows muscles to move bones, maintain posture, and regulate body temperature.

Irritability refers to the ability of muscle tissue to respond to stimuli. This property allows muscles to react to signals from the nervous system and contract or relax accordingly.

Elasticity refers to the ability of muscle tissue to return to its original shape after contraction. This property allows muscles to recover from stretching or contraction and maintain their normal function.

Extensibility refers to the ability of muscle tissue to stretch and extend. This property allows muscles to adapt to changes in length and tension, and to maintain their normal function even when stretched or compressed.

Overall, these four properties work together to enable muscle tissue to perform its various functions, including movement, posture, and temperature regulation.

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15
Q

Describe the structure of a skeletal muscle, including the epimysium, fascicles, perimysium, endomysium, and muscle

A

A skeletal muscle consists of several layers of connective tissue and muscle fibers. The structure of a skeletal muscle can be described as follows:

The outermost layer of a skeletal muscle is the epimysium, which is a layer of connective tissue that surrounds the entire muscle.

Beneath the epimysium are the fascicles, which are bundles of muscle fibers. Each fascicle is surrounded by a layer of connective tissue called the perimysium.

Within each fascicle are the muscle fibers, which are long, multinucleated cells that contract to produce movement. Each muscle fiber is surrounded by a layer of connective tissue called the endomysium.

Overall, the structure of a skeletal muscle is designed to provide strength, support, and flexibility to the body.

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