PSE 1 review part 9 (muscles)

1. Bones and muscles belong to...

• 1. musculoskeletal system

• 1. cardiac muscle system

• 1. smooth muscle

• 1. skeletomuscular system

1. What is not correct about the smooth muscles?

• 1. They don’t work consciously

• 1. They are the ones used to produce movement

• 1. They are found in the walls of most internal organs

• 1. They are found in the walls of most blood vessels

1. Epimysium...

• 1. surrounds the entire muscle and functions to hold it together

• 1. is the longest muscle fiber

• 1. is a longitudinal network of tubules

• 1. is the fluid part of the muscle fiber

1. What is not true referring to myostatin-related muscle hypertrophy?

• 1. a genetic mutation can lead to it

• 1. muscle growth is enhanced by myostatin

• 1. muscle growth is inhibited by myostatin

• 1. it blocks myostatin production

Bundles of fibers are called (a)  

1. What is right about Perimysium?

• 1. sheath of connective tissue covering each muscle fiber

• 1. surrounds the entire muscle and holds it together

• 1. it is a specific type of muscle cell

• 1. is wrapped around bundles of fiber

1. What is not correct about muscle fibers?

• 1. Are surrounded by plasmalemma

• 1. Are surrounded by the sarcolemma

• 1. Include cytoplasm called sarcoplasm which houses T-Tubules

• 1. Type I have a low fatigue resistance

muscle fibers are cells without nuclei

• true

• false

1. Which muscle fiber types do humans have?

• 1. Type Iz

• 1. Type IIa

• 1. Type IIz

• 1. Type lo

satellite cells are not involved in muscle's adaptation to immobilization

• true

• false