A&P Chapter 9 - UTA 2457 Dr. Henry Exam
Study Guide Questions with Correct
Answers
Defined muscles are caused by constant _________-_________, making them look toned. - Correct
Answer cross-bridging
__________ (chemical) allows muscles to relax. - Correct Answer potassium
____________ muscle moves bones. It is ____________, multinucleated, and voluntary. An example
of a muscle that is both voluntary and involuntary is the _____________. - Correct Answer skeletal,
striated, diaphragm
___________ muscle is ONLY found in the heart. It is ___________, has intercalated discs, is
involuntary and the contraction is _______________________. - Correct Answer cardiac, striated,
autorhythmic
____________ muscle tissue lines the walls of ____________ internal organs. They are
_________________, and not striated, which allows for contractions in _________ directions. -
Correct Answer smooth, hollow, involuntary, all
Some main functions of muscle tissue include producing movement, _____________ body positions,
moving substances within the body, and generating _______________. - Correct Answer stabilizing,
heat
Muscles lose energy in the form of ______________. - Correct Answer heat
There are 4 main properties of muscle tissue; excitability, ______________, elasticity, and
___________________. - Correct Answer contractility, extensibility
From outside to inside:
Fascia, ____________, Perimysium, Endomysium, ______________, Sarcomere. - Correct Answer
epimysium, myofibril
, ___________ is irregular connective tissue that is similar to "inner skin". It is very _____________. -
Correct Answer fascia, dense
The ________________ is the outer layer that separates muscles fibers into ______________. -
Correct Answer epimysium, fascicles
The _______________ is under the epimysium, which surrounds fascicles. - Correct Answer
perimysium
The __________________ is under the perimysium, which separates muscle ___________. - Correct
Answer endomysium, fibers
____________ motor neurons stimulate muscles to contract. The ____________ of the neuron
branches into multiple muscle ______________. - Correct Answer somatic, axon, fibers
Each muscle fiber is close to 1 or more _________________, making muscles highly vascular. -
Correct Answer capillaries
________________ is the enlargement of muscle fibers, causing the muscle to grow. - Correct
Answer hypertrophy
_____________ cells can regenerate damaged muscle cells. - Correct Answer satellite
The __________________ is the phospholipid bilayer found in muscle cells. - Correct Answer
sarcolemma
Transverse tubules help _______________ ___________________ travel through the muscle cell,
ensuring _______________ excitement. - Correct Answer action potentials, simultaneous
The _______________ is the cytoplasm within muscle cells. It includes glycogen for _____, and
myoglobin, which binds to ___________ used for _____. - Correct Answer sarcoplasm, ATP, oxygen,
ATP
Tendon connects ___________ to bone. - Correct Answer muscle
