38 Questions
What characteristic of muscle tissue allows it to return to its original shape after contraction?
Elasticity
Which type of muscle tissue has a single central nucleus and is found in the walls of hollow organs?
Smooth muscle
What type of muscle tissue is capable of undergoing mitosis and regeneration?
Smooth muscle
What is the characteristic of skeletal muscle that allows it to contract only fully?
All or none contraction
Which type of muscle tissue has intercalated discs for cell-to-cell junctions?
Cardiac muscle
What type of muscle tissue has a striated appearance due to the arrangement of actin and myosin?
Skeletal muscle
What is the type of muscle tissue that is controlled by the autonomic nervous system?
All of the above
Which type of muscle tissue is responsible for moving joints?
Skeletal muscle
What is the characteristic of muscle tissue that allows it to respond to stimuli?
Excitability
What triggers the binding of myosin heads to actin during muscle contraction?
Calcium binds to Troponin
Which condition causes a muscle to remain contracted due to lack of ATP?
Rigor Mortis
What role does the sarcoplasmic reticulum play in muscle contraction?
It stores and pumps calcium
In a multipolar neuron, where are the presynaptic terminals located?
At one end of the axon
Which type of neuron has the perikaryon positioned in the middle of the axon?
Bipolar neuron
What happens to stop muscle contraction?
Calcium unbinds from Troponin
What is the function of dendrites in a neuron?
Receive nerve impulses
How does the unipolar neuron differ from the multipolar neuron?
Unipolar has dendrites in the middle of the axon
Which component is responsible for the sliding movement of filaments during muscle contraction?
Actin and Myosin
Where is the cell body of a neuron primarily located?
Mainly in the CNS or ganglia of the PNS
In a muscle fibre, what triggers the deformation of tropomyosin, allowing myosin to bind to a new site?
The release of calcium from the sarcoplasmic reticulum
What is the primary function of the sarcoplasmic reticulum in muscle contraction?
To store and release calcium ions
During muscle contraction, what is the relationship between actin and myosin filaments?
Actin filaments slide past myosin filaments, causing them to overlap
What is the role of titin strands in muscle contraction?
To regulate the sliding of actin and myosin filaments
What is the primary function of dendrites in a neuron?
To receive and integrate nerve impulses
What is the characteristic of neurons that allows them to transmit information over long distances?
The presence of axons
What is the primary difference between bipolar and multipolar neurons?
The location of the perikaryon
What is the condition in which a muscle remains contracted due to a lack of ATP?
Rigor mortis
What is the role of calcium in muscle contraction?
To bind to troponin, allowing myosin to bind to actin
What is the primary function of the perikaryon in a neuron?
To integrate and process nerve impulses
What is a unique feature of cardiac muscle tissue compared to other muscle tissues?
Intercalated discs for cell-to-cell junctions
Which type of muscle tissue has cells that are large, elongated, and multinucleated?
Skeletal muscle
What is a characteristic of muscle tissue that allows it to stretch without tearing?
Extensibility
Why is skeletal muscle unable to regenerate effectively?
Inability to undergo mitosis
Which type of muscle is controlled by the autonomic nervous system and is found in the walls of hollow organs?
Smooth muscle
What role do satellite cells play in skeletal muscle?
Aid in recovery and repair
What differentiates smooth muscle from skeletal muscle regarding its appearance?
Single central nucleus
Which quality of muscle tissue allows it to return to its original shape after being stretched or contracted?
Elasticity
How does cardiac muscle ensure coordinated contraction of the heart?
Intercalated discs
This quiz covers the characteristics and properties of skeletal muscle tissue, including excitability, contractability, extensibility, and elasticity. It also describes the structure and function of skeletal muscles.
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