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exam 3
| Question | Answer |
|---|---|
| The region of the sarcomere which appears lighter in color under a microscope due to the absence of overlapping thick filaments is called: | I band |
| Thick filaments are predominantly located in which part of myofibril? | A band |
| Involuntary, striated muscle found in the heart, characterized by a branching pattern. | Cardiac muscle |
| Involuntary, non-striated muscle found in hollow organs, controlling movement within them. | Smooth muscle |
| Crosswise stripes in muscle tissue indicating organized protein structures. | Striations |
| The striated appearance of cardiac muscle is primarily due to: | The arrangement of contractile proteins |
| Which type of muscle is responsible for the involuntary movement of substances through the intestines? | Smooth muscle |
| The property of muscle tissue to return to its original shape after contraction or extension. | Elasticity |
| The capacity of muscle tissue to be stretched without damage. | Extensibility |
| The ability of muscle tissue to shorten forcibly, generating movement. | Contractility |
| What is the main function of dendrites in the nervous system? | Receive signals from other neurons |
| The different tissues in the body have their own respective functions. What is the main function of the skeletal muscle tissue? | Helps generate movement in the body |
| Cellular structures containing genetic material; skeletal muscle cells have multiple due to their size. | Nuclei |
| Muscle that can be consciously controlled, such as skeletal muscle. | Voluntary muscle |
| Muscle that operates without conscious control, like cardiac and smooth muscle. | Involuntary muscle |
| Which connective tissues covers individual muscle fibers within a muscle? | Endomysium |
| Fascicle arrangement in muscles is important because: | It is correlated to the force generated by a muscle and affects the muscle's range of motion |
| The size of the motor unit is dependent on what? | The type of muscle and its functional demands |
| Which of the following acts as a main regulator of muscle tone? | Muscle spindle |
| When a person needs to perform a short high-intensity task, which form of high-energy phosphate is used? | Creatine phosphate |
| This cellular change usually occurs where there is increased functional demand on a tissue, or where there is hormonal stimulation: | Hypertrophy |
| The single-unit smooth muscle produces which type of contraction? | Slow and steady |
| Excess post-exercise oxygen consumption (EPOC) refers to the amount of oxygen the body needs to: | Return to the resting state |
| The plasma membrane of the muscle cell is termed: | Sarcolemma |
| Which of the following types of muscle tissue is commonly referred to as a functional syncytium? | Cardiac muscle |
| The ability of muscle tissue to respond to stimuli, often through action potentials | Exitability |
| Structures in cardiac muscle linking cells, facilitating synchronized contraction | Intercalated discs |
| Consists of a single motor neuron and all the muscle fibers it innervates | Motor unit |
Created by:
nijiiro