Anatomy Exam 2: Muscular System Questions and Correct Answers the Latest Update and Recommended Version

Muscle → Comprises 40-50% of all body weight → One of 4 primary tissues (epithelial, connective, muscle, nervous) → Prefixes: → -"myo" → -"sarco" Types of Muscle → Skeletal → Cardiac → Smooth Skeletal Muscle Overview → Location → -attached to skeleton → Microscopic Structure → -Striated (bands) → Nervous Control → -Voluntary (conscious) Cardiac Muscle Overview 2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel! 1 | P a g e | G r a d e A + | 2 0 24 / 2 0 2 5 → Location → -heart → Microscopic Structure → -Striated (bands) → Nervous Control → -Involuntary (unconscious) Smooth Muscle Overview → Location → -walls of hollow organs (viscera), blood vessels → Microscopic Structure → -Non-striated (no bands) → Nervous Control → -involuntary (unconscious) Functions of Muscles → Motion → Heat production → Posture → Stability → Guarding entrances, exits Muscle Characteristics → Excitability → -irritability → Contractility → Extensibility → Elasticity → Compensatory hypertrophy 2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel! 1 | P a g e | G r a d e A + | 2 0 24 / 2 0 2 5 Skeletal Muscle → Nerve supply → -Motor neurons → --Nerves that stimulate contraction → Blood supply → -Very rich → -Delivers nutrients, O2 and eliminates waste Muscle Organization → Deep -> superficial → Smallest -> biggest → -Muscle Fiber → -Fascicle → -Muscle Belly Connective Tissue Compon