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15 terms

Skeletal Muscle Tissue

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Another name for muscle cells is _____.
muscle fibers
Which of the following is not a type of muscle tissue?
nonstriated
The "sliding filament mechanism" explains which type of muscle contraction?
concentric contraction
After being stretched, muscle tissue can recoil passively and resume its resting length. This is known as _____.
elasticity
An "overcoat" of dense irregular connective tissue surrounding the whole skeletal muscle, and sometimes blending with the deep fascia, is known as _____.
epimysium
Skeletal muscle cells have which of the following characteristics?
They are long and cylindrical.
Their diameter is 10-100µm.
They are multinucleate.
They are long and cylindrical and multinucleate.
Regarding muscle attachments, which term(s) indicate(s) that the strands of connective tissue are so short that the muscle fascicles appear to attach directly to the bone?
direct attachments and fleshy attachments
In general, each skeletal muscle is supplied by _____.
one nerve, one artery, and one or more veins
In muscle tissue, the characteristic that is defined as "the ability to be stretched by contraction of an antagonist (opposing muscle)" is known as _____.
extensibility
An adult human female's skeletal muscles make up what percentage of body mass, on average?
36%
The central part of the "A band" of a sarcomere is known as the _____.
"H zone"
The sarcoplasmic reticulum stores large quantities of which ion?
releases calcium ions that will cause troponin/tropomyosin complex to move. This exposes the binding sites on actin and allows the cross-bridges of myosin to bind to the actin binding sites.

Read more: http://wiki.answers.com/Q/What_does_sarcoplasmic_reticulum_do#ixzz1S3jy2C64
Which portion of the sarcomere creates the light portions of the light-dark pattern of striations seen along the length of a muscle fiber?
I band
Nerve-generated impulses in the sarcolemma are conducted by deep invaginations of the sarcolemma that run between each pair of terminal cisternae. These deep invaginations are called _____.
T tubules
Which protein is a springlike molecule in sarcomeres that prevents overstretching, extending in a sarcomere from the Z disc to attach with another filament to the M line?
titin