Q1. Which muscle type is voluntary?

Background

Topic: Muscle Tissue Types

This question tests your understanding of the three main muscle types (skeletal, cardiac, smooth) and which are under conscious control.

Key Terms:

• Voluntary muscle: Muscle that can be consciously controlled.

• Skeletal muscle: Muscle attached to bones, responsible for movement.

• Cardiac muscle: Muscle of the heart, not under conscious control.

• Smooth muscle: Muscle in walls of organs, not under conscious control.

Step-by-Step Guidance

1. Recall the three muscle types: skeletal, cardiac, and smooth.

2. Determine which muscle(s) you can consciously move (e.g., moving your arm).

3. Remember that cardiac and smooth muscle function automatically (involuntary).

4. Identify which answer choice matches the voluntary muscle type.

Try solving on your own before revealing the answer!

Q2. Which muscle is NOT striated?

Background

Topic: Muscle Histology

This question tests your knowledge of the microscopic appearance of muscle types, specifically the presence or absence of striations (bands).

Key Terms:

• Striated muscle: Muscle with visible banding patterns (skeletal and cardiac).

• Smooth muscle: Lacks striations.

Step-by-Step Guidance

1. Recall which muscle types have striations (skeletal and cardiac).

2. Think about the function and location of smooth muscle (e.g., digestive tract, blood vessels).

3. Identify the muscle type that does not show striations under a microscope.

Try solving on your own before revealing the answer!

Q3. Excitability means:

Background

Topic: Muscle Properties

This question is about the basic properties of muscle tissue, specifically the ability to respond to stimuli.

Key Terms:

• Excitability: The ability of muscle to receive and respond to a stimulus.

• Stimulus: A signal (usually from a nerve) that triggers a response.

Step-by-Step Guidance

1. Recall the four main properties of muscle: excitability, contractility, extensibility, and elasticity.

2. Match the property "excitability" with its definition (ability to respond to a stimulus).

3. Eliminate choices that refer to other properties (e.g., stretch, shorten, return).

Try solving on your own before revealing the answer!

Q4. Contractility means:

Background

Topic: Muscle Properties

This question tests your understanding of what it means for a muscle to be contractile.

Key Terms:

• Contractility: The ability of muscle to shorten and generate force.

Step-by-Step Guidance

1. Recall that contractility is one of the four main muscle properties.

2. Think about what happens when a muscle contracts (it shortens).

3. Match the definition to the correct answer choice.

Try solving on your own before revealing the answer!

Q5. Extensibility means:

Background

Topic: Muscle Properties

This question is about the ability of muscle to be stretched without being damaged.

Key Terms:

• Extensibility: The ability of muscle to be stretched or extended.

Step-by-Step Guidance

1. Recall that extensibility refers to stretching.

2. Eliminate choices that refer to other properties (respond, contract, heat).

3. Choose the answer that best matches the definition of extensibility.

Try solving on your own before revealing the answer!

Q6. Elasticity means:

Background

Topic: Muscle Properties

This question tests your understanding of the property that allows muscle to return to its original shape after being stretched or contracted.

Key Terms:

• Elasticity: The ability of muscle to return to its original length after stretching or contracting.

Step-by-Step Guidance

1. Recall that elasticity is about returning to original shape.

2. Eliminate choices that refer to stretching, contracting, or signaling.

3. Choose the answer that best fits the definition of elasticity.

Try solving on your own before revealing the answer!