anatomy redo - vocab 2 Flashcards
What is the name of the muscle tissue that is under involuntary control?
Both Smooth/Visceral and Cardiac
Which of these tissues is NOT striated?
Smooth/Visceral
What is the name of the muscle tissue that typically composes the gastrointestinal tract?
Smooth/Visceral
What is the name of the muscle tissue that composes the heart?
Cardiac
Which of these muscle tissues surrounds arteries and veins?
Smooth/Visceral
What is the name of the muscle tissue that is under voluntary control?
Skeletal
The connective tissue sheath that surrounds a single muscle cell is called a/an _____.
endomysium
The smallest contractile unit of skeletal muscle is a _____.
sarcomere
Which of the following characteristics is unique to muscle tissue?
Contractility
Which of the following is NOT a function of muscles?
absorb nutrients
The cell membrane of a muscle cell is called a _____.
sarcolemma
What is the special name for cytoplasm in a muscle cell?
sarcoplasm
Muscle cells are also called ______.
muscle fibers
During muscle contractions
1) actin and myosin slide past each other
2) ATP supplies energy
3) calcium ions are involved
all of the above
Training exercises such jogging, swimming & aerobics have this effect on skeletal muscle tissue.
increase number of mitochondria per muscle fibers
What makes up the striations of muscles, is involved in contraction, and comes in 2 types?
Myofilaments
What explains how muscles contract (where the myosin and actin slide over each other)?
Sliding Filament Theory
Which muscle characteristic describes a muscle responding to stimuli?
irritability
If a motor unit has a LARGE number of muscle fibers, ____ motor function occurs.
gross
What is the term for the movements that move food through the digestive system?
peristalsis
What provides ATP for the muscles to use as energy?
1) Creatine Phosphate
2) Aerobic Respiration
3) Anaerobic Respiration
All of the above
Muscle fatigue and cramps are due, in part, to the accumulation of ______.
Lactic Acid
What is an decrease in size of skeletal muscle cells called?
Muscle Atrophy
Which term best describes a motor neuron and a muscle cell.
motor unit
What is the term for the connective tissue that surrounds and separates muscles?
fascia
If a motor unit has a SMALL number of muscle fibers, ____ motor function occurs.
fine
What is an increase in size of skeletal muscle cells called?
Muscle Hypertrophy
When one motor neuron transmits an impulse, ALL the muscle fibers in its ___ contract together.
motor unit
