Apologia Anatomy and Physiology mod 5 the muscular system | Baamboozle - Baamboozle | The Most Fun Classroom Games!

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15

What kind of energy source do muscles take advantage of that requires oxygen and what kinds do not?

aerobic respiration is very efficient and requires oxygen, using creatine phosphate does not use oxygen, and anaerobic respiration does not require oxygen.

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15

What does acetylcholinesterase do for the muscle?

Breaks down the neurotransmitter acetylcholine, preventing action potentials from reaching muscle. allowing the muscle to relax

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15

What does it mean when a motor neuron is recruited?

motor neuron is recruited: it is responding to a stimulus by sending action potentials down its axon.

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20

Explain the difference between subthreshold, threshold, submaximal and maximal stimulus.

Stimuli

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15

What causes an oxygen debt?

This occurs when muscles are don't receive enough O2 for anerobic respiration to supply the energy needs. it relies on creatine phosphate and anerobic respirati

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lifesaver

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seesaw

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shark

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baam

Lose 5 points!

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15

What is a sarcomere?

sarcomere: the repeating unit of a myofibril

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15

What is the byproduct of anaerobic respiration? Why is this a problem?

Lactic acid, it is a problem when it accumulates in the muscles because it is deleterious to muscle tissue.

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15

What are the z disks?

a border formed by alternating filaments in a zig zag pattern. it is the anchoring site for the actin myofilaments

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15

What causes rigor mortis?

moving Ca into the sarcoplasmic reticulum requires energy (low to high concentration) so,Ca leaks into the muscles......

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What gives us muscle tone?

Partial contraction of a muscle -When only some of the motor units are recruited

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15

Two muscle fibers that are right next to each other do not contract at the same time. are they part of the same motor unit?

no

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15

What is a threshold stimulus?

: a stimulus that is strong enough to create one action potential in a neuron.

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lifesaver

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magnet

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fairy

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thief

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identify a, b, c, d, e in the figure

a: epimysium, b: perimysium, c: endomysium, d: muscle cell(fiber), e: fascicle,

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boom

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star

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fairy

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thief

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