BI121 GRCC Muscular System – 2025/2026 Exam Study Guide with Q&A for Muscle Anatomy and Function

BI121 GRCC SPOs: Muscular System
2025/2026 Exam Questions and Detailed
Answers | Get it 100% Correct Answers



Rectus femoris (quadriceps) - 🧠 ANSWER ✔✔A: extends leg, flexes thigh


Semimembranousus (hamstrings) - 🧠 ANSWER ✔✔A: extends thigh and

flexes leg


Tendon - 🧠 ANSWER ✔✔dense connective tissue structure that anchors a

muscle to bone


Epimysium - 🧠 ANSWER ✔✔outer layer of connective tissue around a

skeletal muscle


Perimysium - 🧠 ANSWER ✔✔connective tissue that bundles skeletal

muscle fibers into fascicles within a skeletal muscle


Fascicle - 🧠 ANSWER ✔✔bundle of muscle fibers within a skeletal muscle

surrounded by perimysium




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, Endomysium - 🧠 ANSWER ✔✔loose, and well-hydrated connective tissue

covering each muscle fiber in a skeletal muscle


Muscle belly - 🧠 ANSWER ✔✔main body of muscle


Origin - 🧠 ANSWER ✔✔attachment of a muscle that remains relatively fixed

during muscular contraction


Insertion - 🧠 ANSWER ✔✔The attachment of a muscle tendon to a

moveable bone or the end opposite the origin


Prime mover (agonist) - 🧠 ANSWER ✔✔muscle with the major

responsibility for a certain movement


Antagonist - 🧠 ANSWER ✔✔muscle that opposes or opposes a prime

mover


Synergist - 🧠 ANSWER ✔✔muscle that aids a prime mover in a movement

and helps prevent rotation


Fixator - 🧠 ANSWER ✔✔stabilizes the origin of a prime mover


Flexion - 🧠 ANSWER ✔✔movement that decreases the angle of a joint


Extension - 🧠 ANSWER ✔✔movement that increases the angle of a joint


COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER:
619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED 2