Fundamentals Of Human Physiology Comprehensive Test Bank Solved Questions Verified Answers

FUNDAMENTALS OF HUMAN
PHYSIOLOGY COMPREHENSIVE TEST
BANK SOLVED QUESTIONS VERIFIED
ANSWERS

●● Skeletal muscle
Answer: Voluntary muscle found in body


●● Cardiac muscle
Answer: Involuntary muscle found in the heart


●● Smooth muscle
Answer: Muscle that comprises hollow organs and tubes


●● Functions of skeletal muscle
Answer: -Movement
-Posture
-Generation of body heat
-Movement of substances such as urine
-Nutrient reserves
-Support soft tissues and organs

,●● Muscle
Answer: A number of muscle fibers bound by connective tissue


●● Muscle fiber
Answer: Muscle cells


●● Skeletal muscle
Answer: Linked to bones by tendons


●● Components of skeletal muscle cells
Answer: -Sarcolemma
-Sarcoplasm
-Myofibrils


●● Myofibrils
Answer: -Contractile elements of muscle fiber
-Composed of myofilaments
-Thick filaments
-Thin filaments


●● Myosin

,Answer: Thick filaments


●● Actin
Answer: Thin filaments


●● Striations
Answer: Arrangements of myofilaments;
-A bands
-I bands


●● Motor neurons
Answer: Neurons that stimulate muscles to contract


●● Motor unit
Answer: A single motor neuron and all the muscle fibers it innervates


●● Motor end plates
Answer: The area of the muscle fiber sarcolemma where a motor neuron
stimulates skeletal muscle


●● ACH
Answer: Neurotransmitter that triggers skeletal muscle contraction

, ●● Sarcomere
Answer: -Functional unit of contraction
-Between 2 Z lines
-Regions:
-A band
-H zone
-M line
-I band


●● A band
Answer: Contains the entire length of a single thick filament


●● H zone
Answer: The zone of the thick filaments that has no actin


●● M line
Answer: The disc in the middle of the sarcomere; formed of cross-
connecting elements of the cytoskeleton


●● I band
Answer: The zone of thin filaments that is not superimposed by thick
filaments