Anatomy and Physiology: an integrative approach ch. 10
Study online at https://quizlet.com/_jpbu2c
1. Explain the five Body movement: Contraction of muscle attached to bone creates a wide range of
general functions movement.
of skeletal mus-
cle Maintenance of posture: Contraction of specific skeletal muscles stabilizes joints
and helps maintain body's posture.
Protection and support: Layers of muscle help protect the internal organs and
support their normal position inside the abdominopelvic region.
Regulating elimination of materials: Circular muscle bands called sphincters con-
tract and relax to regulate passage of material.
Heat production: Energy is required for muscle tissue contraction, and heat is
always produced by the energy used.
2. Describe the five Excitability: The ability of a cell to respond to a stimulus.
characteristics of
skeletal muscle Conductivity: Involves an electrical change that travels along the plasma membrane
tissue as voltage-gated channels open sequentially during an action potential. (muscle
cells/ neurons)
Contractility: exhibited when contractile proteins within skeletal muscle cells slide
past one another. (causes movement)
Elasticity: the ability of a muscle to return to its original length following either
shortening or lengthening of the muscle.
Extensibility: The lengthening of muscle cells.
3. Identify and de- Epimysium: layer of dense irregular CT that surrounds the whole skeletal muscle.
scribe the three
connective tissue Perimysium: layer of dense irregular CT that surrounds the fascicles, and includes
many blood vessels and nerves that supply the muscle fibers in each individual
fascicle.
, Anatomy and Physiology: an integrative approach ch. 10
Study online at https://quizlet.com/_jpbu2c
layers associated
with a muscle. Endomysium: The innermost connective tissue layer that contains a delicate areolar
CT layer that surrounds each muscle fiber.
4. muscle connec-
tive tissue layers
5. Describe the Tendon: a thick cord-like structure composed of dense regular CT that attach
structure and muscle to bone.
function of a
tendon and an Aponeurosis: layers of thin flattened sheet of dense irregular tissue that can take
aponeurosis. the place of tendon.
6. Explain the func- Blood vessels deliver oxygen and nutrients to the muscle fibers, as well as remove
tion of blood ves- waste from the muscle fibers.
sels and nerves
serving a muscle. Nerves serve to allow muscles to move using motor neurons (voluntary muscles).
7. Explain how a Myoblast cells are what form the muscle fibers, causing the muscle fiber to have
skeletal muscle multiple nuclei.
fiber becomes
multinucleated.
8. Describe the Sarcolemma: The plasma membrane of a skeletal muscle fiber.
sarcolemma,
T-tubules, and T-tubules: Deep invaginations of sarcolemma that network narrow membranous
sarcoplasmic tubules to the sarcoplasmic reticulum.
reticulum of a
Sarcoplasmic reticulum: The endoplasmic reticulum of a muscle fiber.
skeletal muscle
fiber.
9.
Study online at https://quizlet.com/_jpbu2c
1. Explain the five Body movement: Contraction of muscle attached to bone creates a wide range of
general functions movement.
of skeletal mus-
cle Maintenance of posture: Contraction of specific skeletal muscles stabilizes joints
and helps maintain body's posture.
Protection and support: Layers of muscle help protect the internal organs and
support their normal position inside the abdominopelvic region.
Regulating elimination of materials: Circular muscle bands called sphincters con-
tract and relax to regulate passage of material.
Heat production: Energy is required for muscle tissue contraction, and heat is
always produced by the energy used.
2. Describe the five Excitability: The ability of a cell to respond to a stimulus.
characteristics of
skeletal muscle Conductivity: Involves an electrical change that travels along the plasma membrane
tissue as voltage-gated channels open sequentially during an action potential. (muscle
cells/ neurons)
Contractility: exhibited when contractile proteins within skeletal muscle cells slide
past one another. (causes movement)
Elasticity: the ability of a muscle to return to its original length following either
shortening or lengthening of the muscle.
Extensibility: The lengthening of muscle cells.
3. Identify and de- Epimysium: layer of dense irregular CT that surrounds the whole skeletal muscle.
scribe the three
connective tissue Perimysium: layer of dense irregular CT that surrounds the fascicles, and includes
many blood vessels and nerves that supply the muscle fibers in each individual
fascicle.
, Anatomy and Physiology: an integrative approach ch. 10
Study online at https://quizlet.com/_jpbu2c
layers associated
with a muscle. Endomysium: The innermost connective tissue layer that contains a delicate areolar
CT layer that surrounds each muscle fiber.
4. muscle connec-
tive tissue layers
5. Describe the Tendon: a thick cord-like structure composed of dense regular CT that attach
structure and muscle to bone.
function of a
tendon and an Aponeurosis: layers of thin flattened sheet of dense irregular tissue that can take
aponeurosis. the place of tendon.
6. Explain the func- Blood vessels deliver oxygen and nutrients to the muscle fibers, as well as remove
tion of blood ves- waste from the muscle fibers.
sels and nerves
serving a muscle. Nerves serve to allow muscles to move using motor neurons (voluntary muscles).
7. Explain how a Myoblast cells are what form the muscle fibers, causing the muscle fiber to have
skeletal muscle multiple nuclei.
fiber becomes
multinucleated.
8. Describe the Sarcolemma: The plasma membrane of a skeletal muscle fiber.
sarcolemma,
T-tubules, and T-tubules: Deep invaginations of sarcolemma that network narrow membranous
sarcoplasmic tubules to the sarcoplasmic reticulum.
reticulum of a
Sarcoplasmic reticulum: The endoplasmic reticulum of a muscle fiber.
skeletal muscle
fiber.
9.
