Chapter 8 Part 1: The muscular system Flashcards
(26 cards)
What type of muscle tissue has a limited capacity to regenerate?
Cardiac and skeletal muscle
What type of muscle tissue has several nuclei per microfiber?
Skeletal muscle
What type of muscle tissue is voluntary?
Skeletal
What type of muscle tissue is branched with intercalated discs?
Cardiac
What type of muscle tissue is spindle-shaped?
Smooth
What type of muscle tissue is cylindrical in shape; unbranched?
Skeletal
What type(s) of muscle tissue that are striated?
Cardiac and skeletal
What type(s) of muscle tissue are involuntary?
Cardiac and smooth
What type of muscle tissue is found in the heart?
Cardiac
What type of muscle tissue is unstriated?
Smooth
What type of muscle tissue is usually attached to bones?
Skeletal
Name the type of muscle tissue that is longest individual cells?
Skeletal
What type of muscle tissue is nonstriated?
Smooth
Does the length of actin and myosin filaments change during the muscle contraction?
No
This is essential for maintaining posture
Tone
The third phase of a muscle twitch contraction
Relaxation period
These structures in the enlarged bulb of an axon provide energy to make ACh
Mitochondria
State of limp ness in which muscle tone is lost
Flaccid
The cytoplasm of a muscle fiber
Sarcoplasm
This tissue is responsible for most of the heat production going on in our body
Muscle tissue
Skeletal muscles have a ______ blood supply and a ______ nerve supply
Good, good
All the muscle fibers in a _________ must contract or relax together
Motor unit
The movement of these ions from outside the sarcolemma to inside causes and action potential to begin to move along
Sodium ions
These ions are necessary to trigger muscle contraction
Calcium ions
