1 what are the three types of muscles found in the muscular system
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1. What are the three types of muscles found in the muscular system. A. Skeletal, cardiac, muscle fibers B. Skeletal, cardiac, smooth C. Skeletal, smooth, connective D. Smooth, cardiac, connective. 2. The contraction of a muscle is due to the movement of. A. Skeletal muscle

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1 what are the three types of muscles found in the muscular system
1. What are the three types of muscles found in the muscular system

  • A. Skeletal, cardiac, muscle fibers

  • B. Skeletal, cardiac, smooth

  • C. Skeletal, smooth, connective

  • D. Smooth, cardiac, connective


2 the contraction of a muscle is due to the movement of
2. The contraction of a muscle is due to the movement of muscular system

  • A. Skeletal muscle

  • B. Muscle fibers

  • C. Myofibrils

  • D. sarcolemma


3 striated multi nucleated cells belong to
3. Striated, multi-nucleated cells belong to muscular system

  • A. Skeletal muscle

  • B. Cardiac muscle

  • C. Smooth muscle

  • D. Connective tissue


5 all muscles are involved in
5. All muscles are involved in muscular system

  • A. Movement

  • B. Digestion

  • C. Posture

  • D. support


7 muscle cells are surrounded and bundled by
7. Muscle cells are surrounded and bundled by muscular system

  • A. Tendons

  • B. Muscle fibers

  • C. Ligaments

  • D. Connective tissue


8 the prefix that is used when referring to muscle structure
8. The prefix that is used when referring to muscle structure

  • A. Myo, mys

  • B. Mys, endo

  • C. Epi, endo

  • D. Myo, peri


9 all of the following are functions of skeletal muscles except
9. All of the following are functions of skeletal muscles EXCEPT

  • A. Posture

  • B. Heat generation

  • C. Movement

  • D. physique


10 the connective tissue that wraps and protects each individual muscle fiber
10. The connective tissue that wraps and protects each individual muscle fiber

  • A. Epimysium

  • B. Perimysium

  • C. Endomysium

  • D. fascia


11 the connective tissue that surround and protects the fascicle
11. The connective tissue that surround and protects the fascicle

  • A. Epimysium

  • B. Perimysium

  • C. Endomysium

  • D. fascia


12 another name for muscle fiber is
12. Another name for muscle fiber is fascicle

  • A. Sarcolemma

  • B. Sarcomere

  • C. Muscle cell

  • D. Myofibril


13 the is the plasma membrane of the muscle fiber
13. The _____________ is the plasma membrane of the muscle fiber

  • A. Sarcolemma

  • B. Sarcomere

  • C. Sarcoplasmic reticulum

  • D. Myosin filament


14 this organelle is responsible for the shortening of the muscle during contraction
14. This organelle is responsible for the shortening of the muscle during contraction

  • A. Sarcolemma

  • B. Sarcomere

  • C. Sarcoplasmic reticulum

  • D. Myofibril


15 thick filaments are composed of the protein
15. Thick filaments are composed of the protein muscle during contraction

  • A. Actin

  • B. Myosin

  • C. Insulin

  • D. Leucine


16 the thin filaments are anchored to the sarcomere by the
16. The thin filaments are anchored to the Sarcomere by the

  • A. I band

  • B. A band

  • C. H zone

  • D. Z disc


17 one motor neuron and all the skeletal muscle cells stimulated by that neuron is called a
17. One motor neuron and all the skeletal muscle cells stimulated by that neuron is called a

  • A. Fascicle

  • B. Nerve bundle

  • C. Motor unit

  • D. Motor cell


18 the junction between the axon terminal and the muscle it is stimulating
18. The junction between the axon terminal and the muscle it is stimulating

  • A. Synaptic cleft

  • B. Neuromuscular junction

  • C. Synaptic junction

  • D. Neurotransmitter junction


19 when an action potential reaches the axon terminal are released
19. When an action potential reaches the axon terminal, ____________ are released

  • A. Neurons

  • B. Vesicles

  • C. Neurotransmitters

  • D. hormones


20 the specific neurotransmitter involved in skeletal muscle contraction is
20. The specific neurotransmitter involved in skeletal muscle contraction is

  • A. Adenosine triphosphate

  • B. Adenosine diphosphate

  • C. Deoxyribonucleic acid

  • D. Acetyl Choline


Energy for muscle contraction primarily comes from
Energy for muscle contraction primarily comes from muscle contraction is

  • A. ATP

  • B. ADP

  • C. Ach

  • D. CP


24 during a contraction the gets shorter
24. During a contraction the __________ gets shorter muscle contraction is

  • A. Sarcomere

  • B. Neuromuscular junction

  • C. Motor Unit

  • D. neurotransmitter


The protein actin is found on the
The protein actin is found on the muscle contraction is

  • A. Thick filament

  • B. Myosin

  • C. Thin filament

  • D. Muscle cell


26 ca is stored and released by the
26. Ca muscle contraction is⁺is stored and released by the

  • A. Sarcoplasmic reticulum

  • B. Nucleus

  • C. Sarcomere

  • D. Myofibril


27 during contraction the slide over the taking up the space of the
27. During contraction the ________ slide over the ____________, taking up the space of the ___________

  • A. Thick filaments, thin filaments, bare zone

  • B. Thin filaments, thick filaments, bare zone

  • C. Thin filaments, thick filaments, z disc

  • D. Thick filaments, thin filaments, z disc


28 the previous action is part of the
28. The previous action is part of the ____________, taking up the space of the ___________

  • A. Sliding filament theory

  • B. Graded response

  • C. Extensibility

  • D. contractility


29 ability to receive and respond to a stimulus
29. Ability to receive and respond to a stimulus ____________, taking up the space of the ___________

  • A. Excitability

  • B. Contractility

  • C. Extensibility

  • D. Elasticity


30 ability of muscle cells to shorten when an adequate stimulus is received
30. Ability of muscle cells to shorten when an adequate stimulus is received

  • A. Excitability

  • B. Contractility

  • C. Extensibility

  • D. Elasticity


31 ability of muscle cells to be stretched
31. Ability of muscle cells to be stretched stimulus is received

  • A. Excitability

  • B. Contractility

  • C. Extensibility

  • D. Elasticity


32 ability of muscle cells to recoil and resume resting length after stretching
32. Ability of muscle cells to recoil and resume resting length after stretching

  • A. Excitability

  • B. Contractility

  • C. Extensibility

  • D. Elasticity


Study diagram
Study diagram length after stretching

  • Muscle fiber

  • Endomysium

  • Fascicle

  • Perimysium

  • epimysium


Muscle fiber diagram
Muscle fiber diagram length after stretching

  • Has nucleus so it MUST be the muscle cell

    • Myofibril

    • Nucleus

    • Sarcolemma (cell membrane of muscle)


Myofibril diagram
Myofibril diagram length after stretching

  • Myofibril

  • Sarcomere

  • Z disc

  • Light band (I band)

  • Dark band(A band)

  • Thick and thin filaments


Microfilaments thick and thin
Microfilaments (thick and thin) length after stretching

  • Sarcomere

  • Z disc

  • Thin fimaments

  • Thick filaments


Answers
Answers length after stretching

  • B

  • C

  • A

  • A

  • D

  • A

  • D

  • C

  • B

  • C

  • A

  • D

  • B

  • D

  • C

  • B

  • C

  • D

  • A

  • A

  • C

  • A

  • B

  • A

  • A

  • B

  • C

  • D


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