Examl 1:l BIOSl 252l BIOS252l Latestl

Examl 1:l BIOSl 252/l BIOS252l ( l

2026/l 2027l Update)l Anatomyl andl Physiologyl IIl withl Labl Guide l Q/Al l Gradel A l l Correctl ( l Answers)l -Chamberlain

Q:l Endomysium

Answer:

-Thinl sleevel ofl loosel connectivel tissuel aroundl eachl musclel fiber -Allowsl rooml forl capillariesl andl nervel fibersl tol reachl everyl musclel fiber -Providesl extracellularl chemicall environmentl forl thel musclel fiberl andl itsl associatedl nervel ending

Q:l Perimysium

Answer:

-Thickerl connectivel tissuel thatl wrapsl musclel fibersl togetherl inl bundles---fascicles -carriesl thel largerl nervesl andl bloodl vesselsl asl welll asl stretchl receptors---musclel spindles.

Q:l Epimysium

Answer:

-Fibrousl sheathl surroundingl entirel muscle 1 / 3

-onl itsl outerl surface,l thel epimysiuml gradesl intol thel fascia;l itsl innerl surfacel issuesl projectionsl betweenl thel fasciclesl tol forml thel perimysium

Q:l sarcomere

Answer:

-Contractilel unitl ofl muscle -Sepa l froml eachl otherl byl darkl bandsl calledl Zl lines -Distancel betweenl Zl discl tol al Zl disc

Q:l Il band

Answer:

-froml thel endl ofl onel thickl filamentl tol thel beginningl ofl thel nextl thickl filament -Thisl isl whatl createsl thel lightl band

Q:l Al band

Answer:

-froml thel beginningl ofl onel thickl filamentl tol thel endl ofl thel samel thickl filament -Thisl isl whatl createsl thel darkl band

Q:l Hl band

Answer:

-froml thel endl ofl onel thinl filamentl tol thel beginningl ofl thel nextl thinl filament 2 / 3

-notl asl dark -middlel ofl Al band -thickl filamentsl only

Q:l Zl disk(line)

Answer:

-providesl thel anchoragel forl thel thinl andl elasticl filaments.

Q:l Ml line

Answer:

-thel linel foundl atl thel centerl ofl thel thickl filament -Providesl anl anchorl forl thel thickl filament -middlel ofl Hl band

Q:l Sarcolemma

Answer:

thel plasmal membranel ofl al musclel cell

Q:l Myosin

Answer:

thickl filamentl protein

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