FUNDAMENTALS OF HUMAN PHYSIOLOGY - TEST 3 QUESTIONS AND ANSWERS  

FUNDAMENTALS OF HUMAN
PHYSIOLOGY - TEST 3 QUESTIONS
AND ANSWERS

, Muscle Groups - ANSWERS-Skeletal
-Cardiac
-Smooth

Skeletal muscle - ANSWERSVoluntary muscle found in body

Cardiac muscle - ANSWERSInvoluntary muscle found in the heart

Smooth muscle - ANSWERSMuscle that comprises hollow organs and tubes

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

Muscle - ANSWERSA number of muscle fibers bound by connective tissue

Muscle fiber - ANSWERSMuscle cells

Skeletal muscle - ANSWERSLinked to bones by tendons

Components of skeletal muscle cells - ANSWERS-Sarcolemma
-Sarcoplasm
-Myofibrils

Myofibrils - ANSWERS-Contractile elements of muscle fiber
-Composed of myofilaments
-Thick filaments
-Thin filaments

Myosin - ANSWERSThick filaments

Actin - ANSWERSThin filaments

Striations - ANSWERSArrangements of myofilaments;
-A bands
-I bands

Motor neurons - ANSWERSNeurons that stimulate muscles to contract