4. Tissues & Histology

In a myofibril, which filaments stabilize the thick filaments and prevent over-stretching?

Which of the following best describes the primary action of the highlighted muscle, the biceps brachii?

Which type of muscle tissue is primarily responsible for voluntary movement of the body?

Which of the following structures is responsible for storing and releasing calcium ions in a skeletal muscle fiber?

Which structure within a muscle detects changes in muscle length and helps regulate muscle stretch?

What is the primary function of the muscle tissue found in the heart?

The capacity of a muscle cell to shorten forcefully is known as:

Centrally-acting muscle relaxants relieve muscle spasms and pain through which mechanism?

Which muscle fiber component is responsible for storing and releasing calcium ions during muscle contraction?

Which type of muscle tissue is characterized by branching, uninucleate, and striated cells?

Which of the following types of muscle tissue are involuntary?

A skeletal muscle fiber is:

In this figure of a sarcomere, which structure corresponds to the region where only thick filaments are present?

Which term best identifies a muscle cell?

Which term describes the stimulation of a muscle by an impulse transmitted by a motor nerve?