Exam 46: Muscles, Skeletons, and Body Movements

What are the A bands in skeletal muscle composed of?

How are synovial joints held together?

Match each molecule with its description. -acetylcholine

Match each bone type with a skeleton type. Each skeleton type may be used once, more than once, or not at all. -phalanges

How are the bodies of arthropods supported?

What is the primary source of new red blood cells in mammals?

Why does the frozen contraction of muscle cells, called rigor mortis, occur after death?

How many nuclei do skeletal muscle cells have, and what controls them?

Which of the following is a system of vesicles that wraps around each A band and I band, and stores ions that are used in muscle contractions?

What are the H zones in skeletal muscles composed of?

Which term refers to a pair of muscles that cooperatively cause any type of movement?

What kind of joints hold cranial bones together?

Match each bone type with a skeleton type. Each skeleton type may be used once, more than once, or not at all. -facial bones

What is the region between two adjacent Z lines?

Which molecules compose parallel bundles of thick filaments?

What is the name of the cylindrical contractile elements that are about 1 mm in diameter and which individual skeletal muscle cells are packed with?

Which fibres have a high myoglobin content?

Match each bone type with a skeleton type. Each skeleton type may be used once, more than once, or not at all. -sternum

Match each characteristic with a muscle fibre type. Each muscle fibre type may be used once, more than once, or not at all. -low oxidative phosphorylation capacity

Which of the following would be involved in a rapid, powerful movement of short duration that could NOT be sustained for long?