HISTO LEC MUSCLES

What is the tissue responsible for body movement and changes in size and shape of internal organs.
Muscle tissue
Cardiac tissue
Nervous tissue
Endocrine tissue
______________ interaction is responsible for cell contraction.
Myofibril
Myofilament
Myoblast
None of the above (N.O.T.A)
The answer in #1 is an aggregates pf specialized, elongated cells arranged in parallel array that have the primary role of?
A. Movement
B. Contraction
Both A&B
N.O.T.A
This type of myofilaments are composed primarily of myosin II.
A. Thick filaments
B. Thin filments
Both A&B
N.O.T.A
This type of myofilaments are composed of actin.
A. Thick filaments
B. Thin filaments.
Both A&B
N.O.T.A.
I. Thick filaments consists of 300 to 400 myosin II molecules. II. Thick filaments are composed of a long rod-shaped tail portion.
BOTH are TRUE.
BOTH are FALSE
Only I is true.
Only II is true.
What is/are the thin filamentous component/s of the thin filaments?
F-actin
G-actin
Myosin I
Myosin II
#7 is a polymer derived from what globular molecules?
A. Globin actin
B. G-actin
Both A&B
N.O.T.A
The two types of myofilaments occupy the bulk of muscular cytoplasm also known as?
Sarcoplasmic reticulum
Sarcolemma
Both A&B
N.O.T.A
What is the principal type of muscle cell that exhibits cross-striations st the light microscopic level?
Skeletal muscle
Striated muscle
Smooth muscle
N.O.T.A
What is the tissue which is morphologicslly identical to skeletsl muscle but is restricted to soft tissues?
Visceral striated muscle
Smooth muscle
Skeletal muscle
N.O.T.A.
It is the delicate layer of reticukar fibers that immediately surrounds individual muscle fibers.
Epymysium
Endomysium
Perimysium
N.O.T.A
What is the connective tissue layer that surrounds a group of fibers to form a bundle?
Endosmysium
Epimysium
Perimysium
N.O.T.A
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