Clemson Biol 2220 Exam 3 Questions Correct Answers New Update (A+ Pass)
What do skeletal and smooth muscle have in common? - Answers - 1. has elongated cells
2. nucleated
What do skeletal and cardiac muscle have in common? - Answers - 1. nucleated
2. Striations
What do smooth and cardi...
Clemson Biol 2220 Exam 3
Questions Correct Answers New
Update (A+ Pass)
What do skeletal and smooth muscle have in common? - Answers -✔✔ 1. has
elongated cells
2. nucleated
What do skeletal and cardiac muscle have in common? - Answers -✔✔ 1. nucleated
2. Striations
What do smooth and cardiac muscle have in common? - Answers -✔✔ 1. both
involuntary control
2. nucleated
Define excitability - Answers -✔✔ The ability to change a membrane potential
Define contractility - Answers -✔✔ The ability to shorten, when stimulated
Define extensibility - Answers -✔✔ Ability to extend/stretch, even stretching beyond
their resting length, when relaxed.
Define elasticity - Answers -✔✔ Ability of a muscle cell to recoil and resume resting
length after stretching.
What are the 4 characteristics of muscle tissues? - Answers -✔✔ 1. Excitability
2. Contractility
3. Extensibility
4. Elasticity
What are the 4 basic muscle functions? - Answers -✔✔ 1. Produce movement
2. Maintain posture
3. Stabilize joints
4. Generate heat
State the Muscle organization levels from smallest to largest (6) - Answers -✔✔
myofilament-->sarcomere --> myofibril-->Muscle cell-->fascicle-->muscle (organ)
A myofilament contains ____________ and _____________. It is the ___________
level of a muscle. - Answers -✔✔ -Acin and myosin
-smallest
, A sarcomere is a segment composed of __________________s. The unit goes from __
disk to __ disk. - Answers -✔✔ myofilaments, goes from z disk to z disk.
A myofibril is made up from ___________________s, aligned within. - Answers -✔✔
sarcomeres
A muscle (fiber) cell is wrapped in ______________________, which is then enveloped
in __________________. - Answers -✔✔ sarcolemma, then endomysium.
(sarcolemma holds the fiber together, while the endomysium wraps around it next)
A fascicle holes many ____________ ______________. - Answers -✔✔ muscle fibers
A fascicle is surrounded by _________________. - Answers -✔✔ perimysium
The whole muscle is covered in _____________________. - Answers -✔✔ Epimysium
A muscle organ is made up of many __________________. - Answers -✔✔ fascicles
Epimysium is made up of ____________ ____________ connective tissue. - Answers -
✔✔ dense irregular
Perimysium is made up of _____________ ______________ connective tissue. -
Answers -✔✔ dense irregular
Endomysium is made up of fine ___________________ connective tissue. - Answers -
✔✔ areolar
Origin vs Insertion Attachment - Answers -✔✔ Origin: less or nonmovable attachment
Insertion: moveable attachment of a muscle
what are glycosomes? - Answers -✔✔ Granules of stored glycogen for fuel
What is the difference between myoglobin and hemoglobin? - Answers -✔✔ The
myoglobin lets go of the oxygen much faster
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