Podcast
Questions and Answers
Which of the following is a characteristic of striated (skeletal) muscle tissue?
Which of the following is a characteristic of striated (skeletal) muscle tissue?
- Is present in the walls of arteries
- Has the ability to contract when stimulated
- Composed of long, spindle-like cells, each containing a single nucleus (correct)
- Has the ability to contract rhythmically by itself
Which statement about muscle tissue is true?
Which statement about muscle tissue is true?
- Skeletal muscle fibers lack voluntary control
- Skeletal muscle fibers are under voluntary control (correct)
- Striated muscles are those without antagonists
- Most of the muscle tissue of the body is smooth (nonstriated) muscle
If a tissue has striations and several flattened peripheral nuclei per fiber, then that tissue could be
If a tissue has striations and several flattened peripheral nuclei per fiber, then that tissue could be
- Skeletal muscle
- Smooth muscle
- Cardiac muscle (correct)
- Visceral muscle
Cylindrical muscle cells that contain multiple nuclei located peripherally within the cell would be
Cylindrical muscle cells that contain multiple nuclei located peripherally within the cell would be
The ability of a muscle to stretch without being damaged is known as
The ability of a muscle to stretch without being damaged is known as
What is a tendon composed of?
What is a tendon composed of?
The sarcolemma is responsible for
The sarcolemma is responsible for
What is the role of acetylcholine (ACh) in skeletal muscle contractions?
What is the role of acetylcholine (ACh) in skeletal muscle contractions?
What happens during the latent period of a muscle contraction?
What happens during the latent period of a muscle contraction?
What is the function of myoglobin?
What is the function of myoglobin?
Why are skeletal muscle fibers multinucleate?
Why are skeletal muscle fibers multinucleate?
Where is myosin seen?
Where is myosin seen?
How is glucose stored in muscle cells?
How is glucose stored in muscle cells?
What structures meet at the neuromuscular junction?
What structures meet at the neuromuscular junction?
What is the Sliding Filament Theory of muscle contraction?
What is the Sliding Filament Theory of muscle contraction?
What is fused tetanus in terms of muscle contraction?
What is fused tetanus in terms of muscle contraction?
What is a motor unit?
What is a motor unit?
What is the refractory period in muscle physiology?
What is the refractory period in muscle physiology?
What is the gap between a motor neuron and a muscle cell called?
What is the gap between a motor neuron and a muscle cell called?
What is the inability of a muscle to contract forcefully after prolonged activity called?
What is the inability of a muscle to contract forcefully after prolonged activity called?
What is the oxygen-binding protein in skeletal muscle cells?
What is the oxygen-binding protein in skeletal muscle cells?
What is the region of a sarcolemma adjacent to the axon terminals at a neuromuscular junction called?
What is the region of a sarcolemma adjacent to the axon terminals at a neuromuscular junction called?
What structures in smooth muscle fibers are functionally analogous to the Z discs of skeletal muscle fibers?
What structures in smooth muscle fibers are functionally analogous to the Z discs of skeletal muscle fibers?
What is the time between the application of a stimulus and the beginning of contraction called?
What is the time between the application of a stimulus and the beginning of contraction called?
What is the time following a stimulus during which a muscle cell is unable to respond to another stimulus called?
What is the time following a stimulus during which a muscle cell is unable to respond to another stimulus called?
What does involuntary inactivation of a small number of motor units cause, giving relaxed skeletal muscle a firmness?
What does involuntary inactivation of a small number of motor units cause, giving relaxed skeletal muscle a firmness?
Which type of muscle tissue includes both A and B?
Which type of muscle tissue includes both A and B?
Which one of these structures is functionally analogous to Z discs in smooth muscle fibers?
Which one of these structures is functionally analogous to Z discs in smooth muscle fibers?
The inability of a muscle to contract forcefully after prolonged activity is called _____.
The inability of a muscle to contract forcefully after prolonged activity is called _____.
The time between the application of a stimulus and the beginning of contraction, when calcium ions are being released from the sarcoplasmic reticulum, is called the _____ period.
The time between the application of a stimulus and the beginning of contraction, when calcium ions are being released from the sarcoplasmic reticulum, is called the _____ period.
