Types and Characteristics of Muscle Tissue Quiz

Skeletal muscles are striated (have striped appearance) and are under voluntary control.

Cardiac muscle tissue is found in the walls of the heart, responsible for its rhythmic contractions.

Smooth muscle tissue is characterized by involuntary control, often found in organs like the intestines and blood vessels.

Cardiac muscle tissue primarily controls the contraction of the heart, maintaining blood circulation.

Extensibility refers to the ability of muscle tissue to stretch without being damaged, allowing for flexibility and movement.

Smooth muscle tissue primarily controls involuntary movements of internal organs, such as in the digestive and reproductive systems.

Skeletal muscles primarily produce voluntary movements by contracting and relaxing.

Endomysium is the connective tissue that surrounds individual muscle fibers, providing support and facilitating nutrient exchange.

Acetylcholine is released at the neuromuscular junction to stimulate muscle contraction by triggering action potentials.

Skeletal muscle tissue is multinucleated, containing multiple nuclei per cell.

Atrophy refers to the decrease in muscle size or wasting away of muscle tissue due to disuse, injury, or disease.

Cardiac muscle tissue has branching fibers and intercalated discs, facilitating synchronized contractions of the heart.

Sarcomere is the basic unit of contraction in skeletal muscle, composed of overlapping filaments of actin and myosin.

Nuclei in smooth muscle cells are typically located peripherally, unlike skeletal muscle where they are centrally located.

Cardiac muscle tissue is characterized by a single, centrally located nucleus per cell.

Troponin is the protein that regulates muscle contraction by covering the binding sites on actin, preventing myosin from binding.

Gap junctions, facilitating rapid communication between cells, are present in cardiac muscle tissue, ensuring coordinated contractions.