Types/Characteristics
The three types of skeletal muscle tissue.
What are skeletal, cardiac, and smooth?
The largest of the tissue types
What is skeletal muscle?
What is movement?
The plasma membrane of a skeletal muscle cell
What is the sarcolemma?
It stimulates the contraction of muscle cells
The three key characteristics of skeletal muscle
What are skeletal, striated, and voluntary?
Muscle type found only in the heart
What is cardiac muscle?
The three additional functions that are specific to skeletal muscle
What are maintaining posture, stabilizing joints, and generating heat?
What is the sarcoplasmic reticulum?
The term that refers to the nerve cell and all the muscles it stimulates
What is a motor unit?
The three key characteristics of smooth muscle
What are visceral, nonstriated, and involuntary?
The delicate connective tissue sheath that encloses each muscle fiber
What is the endomysium?
They anchor muscles, provide durability, and conserve space
What are the functions of tendons?
The long, ribbon-like organelles that fill the cytoplasm of a muscle cell
What are myofibrils?
The long, thread-like extension of a neuron
What is an axon?
The three key characteristics of cardiac muscle
What are cardiac, striated, and involuntary?
The courser fibrous membrane that wraps around a group of several sheathed muscle fibers
What is the perimysium?
The two special functional properties of muscles cells
What are excitability and contractility?
The contractile units that are aligned end-to-end along the length of the myofibrils
The gap located between the nerve endings and the muscle cell membrane
What is the synaptic cleft?
This muscle tissue-type is found mainly in the walls of hollow organs within the body
What is smooth muscle?
What is the epimysium?
The energy source that directly powers muscle activity
What is ATP?
The proteins that make up the large and thin filaments within the contractile units of a muscle cell
What are myosin and actin?
The specific neurotransmitter that is released at the neuromuscular junction to stimulate the muscle cells
What is acetylcholine?