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Anatomy (BIOL 2220) Exam 3 –
Cummings Questions and Answers
100% Pass
skeletal muscle - ✔✔striated, voluntary, multinucleated
cardiac muscle - ✔✔striated, involuntary, uninucleated
smooth muscle - ✔✔nonstriated, involuntary, uninucleated
properties of muscle - ✔✔excitability, contractibility, extensibility, elasticity
functions of muscle - ✔✔motion, maintenance of posture, stabilizing joints, heat protection
skeletal muscle composition - ✔✔skeletal muscle fibers, blood vessels, nerve fibers, connective tissue
direct attachment - ✔✔muscle has contact with bone
indirect attachment - ✔✔extension between muscle and bone holds them together
epimysium - ✔✔dense irregular connective tissue covering muscle
tendon - ✔✔rope-like attachment from muscle to bone made of connective tissue
aponeurosis - ✔✔sheet-like attachment from muscle to bone made of connective tissue
origin - ✔✔point of muscle contact with unmovable bone, almost always superior/proximal to insertion
insertion - ✔✔point of muscle contact with moveable bone, almost always inferior/distal to origin
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fascicle - ✔✔chunk of muscle with connective tissue covering
perimysium - ✔✔connective tissue covering a fascicle
muscle fiber - ✔✔muscle cell
endomysium - ✔✔reticular connective tissue covering individual cells
myofibers - ✔✔muscle cells aka muscle fibers
sarcolema - ✔✔plasma membrane of muscle cell
sarcoplasm - ✔✔cytoplasm of muscle cell
nuclei of skeletal muscle - ✔✔multiple per cell, really long cells
sarcoplasmic reticulum - ✔✔modified endoplasmic reticulum, primarily runs parallel to fibers but some
run perpendicular (terminal cisternae)
T tubule - ✔✔runs between two terminal cisternae
terminal cisternae - ✔✔sarcoplasmic reticulum tubes that run perpendicular to fibers
myofibrils - ✔✔configuration gives striation, made up of sarcomeres
sarcomeres - ✔✔made up of myofilaments
myofilaments - ✔✔made up of actin or myosin (proteins)
sarcomere Z line - ✔✔aka Z disk, ends of sarcomere
sarcomere A band - ✔✔entire length of thick myofilament
sarcomere I band - ✔✔only the thin myofilament
sarcomere H zone - ✔✔only the thick myofilament
Emily Charlene © 2025, All Rights Reserved.
Anatomy (BIOL 2220) Exam 3 –
Cummings Questions and Answers
100% Pass
skeletal muscle - ✔✔striated, voluntary, multinucleated
cardiac muscle - ✔✔striated, involuntary, uninucleated
smooth muscle - ✔✔nonstriated, involuntary, uninucleated
properties of muscle - ✔✔excitability, contractibility, extensibility, elasticity
functions of muscle - ✔✔motion, maintenance of posture, stabilizing joints, heat protection
skeletal muscle composition - ✔✔skeletal muscle fibers, blood vessels, nerve fibers, connective tissue
direct attachment - ✔✔muscle has contact with bone
indirect attachment - ✔✔extension between muscle and bone holds them together
epimysium - ✔✔dense irregular connective tissue covering muscle
tendon - ✔✔rope-like attachment from muscle to bone made of connective tissue
aponeurosis - ✔✔sheet-like attachment from muscle to bone made of connective tissue
origin - ✔✔point of muscle contact with unmovable bone, almost always superior/proximal to insertion
insertion - ✔✔point of muscle contact with moveable bone, almost always inferior/distal to origin
Emily Charlene © 2025, All Rights Reserved.
, 2|Page
fascicle - ✔✔chunk of muscle with connective tissue covering
perimysium - ✔✔connective tissue covering a fascicle
muscle fiber - ✔✔muscle cell
endomysium - ✔✔reticular connective tissue covering individual cells
myofibers - ✔✔muscle cells aka muscle fibers
sarcolema - ✔✔plasma membrane of muscle cell
sarcoplasm - ✔✔cytoplasm of muscle cell
nuclei of skeletal muscle - ✔✔multiple per cell, really long cells
sarcoplasmic reticulum - ✔✔modified endoplasmic reticulum, primarily runs parallel to fibers but some
run perpendicular (terminal cisternae)
T tubule - ✔✔runs between two terminal cisternae
terminal cisternae - ✔✔sarcoplasmic reticulum tubes that run perpendicular to fibers
myofibrils - ✔✔configuration gives striation, made up of sarcomeres
sarcomeres - ✔✔made up of myofilaments
myofilaments - ✔✔made up of actin or myosin (proteins)
sarcomere Z line - ✔✔aka Z disk, ends of sarcomere
sarcomere A band - ✔✔entire length of thick myofilament
sarcomere I band - ✔✔only the thin myofilament
sarcomere H zone - ✔✔only the thick myofilament
Emily Charlene © 2025, All Rights Reserved.
