bios 252 exam 1 Chamberlain with verified
| | | | | | |
answers
skeletal |muscle |- |CORRECT |ANSWER💢✔- |long, |thin, |cylindrical |in |shape
- |multinucleated
- |attached |to |bone |& |skin |
- |voluntary
- |striated
cardiac |muscle |- |CORRECT |ANSWER💢✔- |short, |fat, |branched
- |uninucleated
- |in |heart
- |attached |to |intercalated |discs
- |involuntary
- |striated
smooth |muscle |- |CORRECT |ANSWER💢✔- |in |hollow |organs
- |ininucleated |
- |involuntary
- |lack |striations
excitability |- |CORRECT |ANSWER💢✔responsiveness |to |chemical |signals, |stretch, |and |electrical |
changes |across |the |plasma |membrane
conductivity |- |CORRECT |ANSWER💢✔local |electrical |excitation |sets |off |a |wave |of |excitation |that |
travels |along |the |muscle |fiber
contractility |- |CORRECT |ANSWER💢✔shortens |when |stim
, extensibility |- |CORRECT |ANSWER💢✔capable |of |being |stretched |b/w |contractions
elasticity |- |CORRECT |ANSWER💢✔returns |to |its |original |rest |length |after |being |stretched
organization |of |skeletal |muscle |- |CORRECT |ANSWER💢✔microfilaments, |myofibril, |muscle |fiber, |
muscle |fascicle, |and |skeletal |muscle
endomysium |- |CORRECT |ANSWER💢✔thin |sleeve |of |loose |CT |around |each |fiber
perimysium |- |CORRECT |ANSWER💢✔thicker |layer |of |CT |that |wraps |fascicles
fascicles |- |CORRECT |ANSWER💢✔bundles |of |muscle |fibers |wrapped |together
epimysium |- |CORRECT |ANSWER💢✔fibrous |sheath |surrounding |entire |muscle
what |are |the |components |of |the |sarcomere |- |CORRECT |ANSWER💢✔z |disc, |m |line, |a |band, |i |band, |
zone |of |overlap, |thick |filament, |thin |filament, |zone |of |overlap, |sarcomere
z |disc |- |CORRECT |ANSWER💢✔narrow, |plate-shaped |regions |of |dense |materials |that |separate |on |
sarcomere |from |the |next
a |band |- |CORRECT |ANSWER💢✔dark, |middle |part |of |sarcomere |that |extends |entire |length |of |thick |
filaments |& |includes |those |part |of |thin |filaments |that |overlap |thick |filament |s
i |band |- |CORRECT |ANSWER💢✔lighter, |less |dense |area |of |sarcomere |that |contains |remainder |of |thin |
filaments |but |no |thick |filaments |
| * |z |disc |passes |thru |center |of |each |I |band
h |zone |- |CORRECT |ANSWER💢✔narrow |region |in |center |of |each |a |band |that |contains |thick |filaments |
but |no |thin |filaments
| | | | | | |
answers
skeletal |muscle |- |CORRECT |ANSWER💢✔- |long, |thin, |cylindrical |in |shape
- |multinucleated
- |attached |to |bone |& |skin |
- |voluntary
- |striated
cardiac |muscle |- |CORRECT |ANSWER💢✔- |short, |fat, |branched
- |uninucleated
- |in |heart
- |attached |to |intercalated |discs
- |involuntary
- |striated
smooth |muscle |- |CORRECT |ANSWER💢✔- |in |hollow |organs
- |ininucleated |
- |involuntary
- |lack |striations
excitability |- |CORRECT |ANSWER💢✔responsiveness |to |chemical |signals, |stretch, |and |electrical |
changes |across |the |plasma |membrane
conductivity |- |CORRECT |ANSWER💢✔local |electrical |excitation |sets |off |a |wave |of |excitation |that |
travels |along |the |muscle |fiber
contractility |- |CORRECT |ANSWER💢✔shortens |when |stim
, extensibility |- |CORRECT |ANSWER💢✔capable |of |being |stretched |b/w |contractions
elasticity |- |CORRECT |ANSWER💢✔returns |to |its |original |rest |length |after |being |stretched
organization |of |skeletal |muscle |- |CORRECT |ANSWER💢✔microfilaments, |myofibril, |muscle |fiber, |
muscle |fascicle, |and |skeletal |muscle
endomysium |- |CORRECT |ANSWER💢✔thin |sleeve |of |loose |CT |around |each |fiber
perimysium |- |CORRECT |ANSWER💢✔thicker |layer |of |CT |that |wraps |fascicles
fascicles |- |CORRECT |ANSWER💢✔bundles |of |muscle |fibers |wrapped |together
epimysium |- |CORRECT |ANSWER💢✔fibrous |sheath |surrounding |entire |muscle
what |are |the |components |of |the |sarcomere |- |CORRECT |ANSWER💢✔z |disc, |m |line, |a |band, |i |band, |
zone |of |overlap, |thick |filament, |thin |filament, |zone |of |overlap, |sarcomere
z |disc |- |CORRECT |ANSWER💢✔narrow, |plate-shaped |regions |of |dense |materials |that |separate |on |
sarcomere |from |the |next
a |band |- |CORRECT |ANSWER💢✔dark, |middle |part |of |sarcomere |that |extends |entire |length |of |thick |
filaments |& |includes |those |part |of |thin |filaments |that |overlap |thick |filament |s
i |band |- |CORRECT |ANSWER💢✔lighter, |less |dense |area |of |sarcomere |that |contains |remainder |of |thin |
filaments |but |no |thick |filaments |
| * |z |disc |passes |thru |center |of |each |I |band
h |zone |- |CORRECT |ANSWER💢✔narrow |region |in |center |of |each |a |band |that |contains |thick |filaments |
but |no |thin |filaments
