Ch 10 Muscle Tissue Test Bank Questions Flashcards

How much of the total body weight of the average adult is muscle tissue?

The different types of muscle tissue differ from each other by?

Which of the following is NOT a major function of muscle tissue?

This is the property of muscle that gives it the ability to stretch without damage.

Is an isometric contraction the muscle develops tension but does not?

This is a band of connective tissue that surrounds muscles

When connective tissue extends as a broad flat layer, the tendon is referred to as

For every nerve that penetrates a skeletal muscle there are general how many arteries and veins?

Axon terminal clusters at the ends of neuromuscular junctions are referred to as:

After the fusion of myoblasts, the muscle fiber loses its ability to do what?

The sequence that muscle action potentials must go through to excite a muscle cell

The mitochondria in muscle fiber are arranged

These are the contractile organelles of the muscle fiber.

This is part of the skeletal muscle cell releases calcium when stimulated by the T-tubules.

The sarcoplasmic reticulum is used for storing

Which of the following contain thin filaments?

Which of the following contain thick filament?

Myofibrils contain

Which of the following functions as a motor protein in all three types of muscle tissue?

What regulatory proteins can be found on an actin molecule?

Titin is found in a sarcomere

Which of the following is used to reinforce the sarcolemma?

In the sliding filament mechanism, the thin filament is being pulled towards the

The sarcoplasmic reticulum releases calcium ions into the cytosol

What energizes the myosin head?

What is needed for the contraction cycle to continue?

This results from a muscle action potential propagating along the sarcolemma and into the T tubules.

The signal to excite a muscle cell must cross the neuromuscular junction by the diffusion of acetylcholine across the

How many molecules of acetylcholine need to bind to open the ion channel of the ACh receptor?

How do muscles produce ATP?

Creatine phosphate and ATP together create enough energy for a muscle to contract for

This consists of a somatic motor neuron plus all the skeletal muscle fibers it stimulates.

This is a brief contraction of all muscle fibers in a motor unit in response to a single action potential.

This is also referred to as the period of lost excitability

A sustained contraction is

Increasing the number of active motor units is called

This is the least powerful type of muscle fiber.

Which of the below structures is found in cardiac muscle tissue but not skeletal muscle tissue?

Which of the following exhibits autorhythmicity?

Smooth muscle tone is due to the prolonged presence of what in the cytosol?

Hyperplasia is