Ch 6 Muscular System QUEST Review!

Front

What is muscle tone?

Back

Muscle tone refers to the continuous and passive partial contraction of the muscles, which helps maintain posture and readiness for action even when the muscle is at rest.

Front

Describe cardiac tissue.

Back

Cardiac tissue is found in the heart, is involuntary, has branching fibers, and contains striations and intercalated discs.

Front

What are the origin and insertion points in muscle attachment?

Back

The origin is the immovable point of attachment of a muscle, while the insertion is the movable point of attachment.

Front

Which type of muscle is involuntary and lacks striations?

Back

Smooth muscle is involuntary and does not have striations.

Front

Where is the latissimus dorsi located?

Back

The latissimus dorsi is located in the back.

Front

What is the function of skeletal muscle?

Back

Skeletal muscle is responsible for voluntary movements of the body and is attached to bones.

Front

What is the role of intercalated discs in cardiac muscle?

Back

Intercalated discs allow for synchronized contraction of cardiac muscle cells and facilitate communication between them.

Front

What is muscle fatigue?

Back

Muscle fatigue is the decline in ability of a muscle to generate force, often due to prolonged activity.

Front

What is the difference between voluntary and involuntary muscles?

Back

Voluntary muscles are under conscious control (e.g., skeletal muscles), while involuntary muscles operate without conscious control (e.g., cardiac and smooth muscles).

Front

What is oxygen debt in muscles?

Back

Oxygen debt refers to the amount of oxygen required to restore the body to its normal state after exercise, particularly to replenish ATP and creatine phosphate.