Human Anatomy - Muscular System || WITH CORRECT
ANSWERS
3 Muscle Tissue Types correct answers Skeletal
Cardiac
Smooth
Skeletal Muscles correct answers - Striated, Multinucleated, & Voluntary. Found attached to
bone to move Body
Cardiac correct answers Striated, Uninucliate, involuntary
Found in myocardium of the heart to move blood.
Smooth correct answers Forms sheets, non-striated, involuntary, uninucliate. Found in hollow
organs (blood vessels, respiratory ducts, digestive organs, urinary organs, reproductive
organs, iris of eye to move fluids or substances in those hollow tubes.)
Functions of Skeletal Muscular System correct answers 1. Movement: Moving the skeleton
and other body parts.
2. Maintaning Posture
3. Stabalize joints
4. Generate heat by shivering
Sarcolemma correct answers Membrane covering Muscle Cell and containing bundles of rod-
like myofibrils inside.
Myofibril correct answers one of many contractile filaments that make up a striated muscle
fiber and is composed of linearly arranged, repeating unitis called sarcomeres
Sarcomeres correct answers Contractile units of cell and shorten (contract) the cell made up
of contractile protein filaments:
Actin, Thin Filiaments
Myosin, Thick Filiaments
Contraction requirements of skeletal muscle cell Sarcomere correct answers Nervous
stimulation (electrical signal from motor neuron, outside the cell, releasing neurotransmitter
(Acetycholine))
2. Calcium (chemical signal throughout the cell)
3. ATP (energy source for contraction)
4. Power depends on total number of muscle cells (sarcomeres) in the muscle that are
contracting at one time.
Acetycholine correct answers A neurotransmitter associated with voluntary movement, sleep
and wakefulness.
Muscle Cells are organized by 4 connective tissue layers within the muscle correct answers 1.
Endomysium
2. Perimysium
3. Epimysium
ANSWERS
3 Muscle Tissue Types correct answers Skeletal
Cardiac
Smooth
Skeletal Muscles correct answers - Striated, Multinucleated, & Voluntary. Found attached to
bone to move Body
Cardiac correct answers Striated, Uninucliate, involuntary
Found in myocardium of the heart to move blood.
Smooth correct answers Forms sheets, non-striated, involuntary, uninucliate. Found in hollow
organs (blood vessels, respiratory ducts, digestive organs, urinary organs, reproductive
organs, iris of eye to move fluids or substances in those hollow tubes.)
Functions of Skeletal Muscular System correct answers 1. Movement: Moving the skeleton
and other body parts.
2. Maintaning Posture
3. Stabalize joints
4. Generate heat by shivering
Sarcolemma correct answers Membrane covering Muscle Cell and containing bundles of rod-
like myofibrils inside.
Myofibril correct answers one of many contractile filaments that make up a striated muscle
fiber and is composed of linearly arranged, repeating unitis called sarcomeres
Sarcomeres correct answers Contractile units of cell and shorten (contract) the cell made up
of contractile protein filaments:
Actin, Thin Filiaments
Myosin, Thick Filiaments
Contraction requirements of skeletal muscle cell Sarcomere correct answers Nervous
stimulation (electrical signal from motor neuron, outside the cell, releasing neurotransmitter
(Acetycholine))
2. Calcium (chemical signal throughout the cell)
3. ATP (energy source for contraction)
4. Power depends on total number of muscle cells (sarcomeres) in the muscle that are
contracting at one time.
Acetycholine correct answers A neurotransmitter associated with voluntary movement, sleep
and wakefulness.
Muscle Cells are organized by 4 connective tissue layers within the muscle correct answers 1.
Endomysium
2. Perimysium
3. Epimysium
