Lab 6 Quiz

This graph is an example of what type of muscle tension? a. wave summation b. incomplete tetanus c. twitch d. treppe e. complete tetanus

incomplete tetanus

This graph is an example of what type of muscle tension? a. wave summation b. incomplete tetanus c. treppe d. twitch e. complete tetanus

treppe

This graph is an example of what type of muscle tension? a. wave summation b. incomplete tetanus c. twitch d. treppe e. complete tetanus

wave summation

What contributes to muscle fatigue? a. increase of cellular energy, oxygen, and waste products b. decrease of cellular energy, oxygen, and waste products c. increase of cellular energy, and a decrease of oxygen, and waste products d. decrease of cellular energy, oxygen, and increase inwaste products e. decrease of cellular energy, oxygen, and waste products

A decrease of cellular energy and oxygen and an increase in waste products.

The "All or Nothing Principle" states a. some muscle can contract and some cannot b. A muscle cell is either turned on (contracting) or off (relaxing), without any intermediate states. c. only one neuron stimulates one muscle fiber d. that muscle can only go through one contraction-relaxation phase e. once a cell is stimulated it cannot do anything

A muscle cell is either turned on (contracting) or off (relaxing), without any intermediate states.

What type of contraction was occurring in the third trial in exercise 6? a. isometric b. isotreppe c. isotonic d. incomplete tetanus e. fatigue

Isotonic

What is a major difference between treppe and wave summation? a. they both result in increased muscle tension b. Muscles exhibiting treppe do not completely relax before the next stimulus arrives, whereas in wave summation the muscles do completely relax before the next stimulus arrives. c. wave summation has no relaxation phase d. treppe has no relaxation phase e. Muscles exhibiting treppe completely relax before the next stimulus arrives, whereas in wave summation the muscles do not completely relax before the next stimulus arrives.

Muscles exhibiting treppe completely relax before the next stimulus arrives, whereas in wave summation the muscles do not completely relax before the next stimulus arrives.

How does complete tetanus result? a. the simulation frequency occurs so fast that the muscle can never relax again b. the muscle produces peak tension with short cycles of relaxation c. it results from a bacteria which locks the jaw into place d. a shot is given into the muscle which makes the tension very high e. The frequency of stimulation is so quick that the relaxation phase is completely eliminated.

The frequency of stimulation is so quick that the relaxation phase is completely eliminated.

Which statement is correct regarding treppe? a. The larger the number of calcium ions there are in the sarcoplasm, the more actin binding sites are exposed which causes lesser successive contractions to occur. b. The smaller the number of calcium ions there are in the sarcoplasm, the more actin binding sites are exposed which causes greater successive contractions to occur. c. The larger the number of calcium ions there are in the sarcoplasm, the more actin binding sites are exposed which causes greater successive contractions to occur. d. The smaller the number of calcium ions there are in the sarcoplasm, the more actin binding sites are exposed which causes lesser successive contractions to occur. e. treppe occurs when a muscle is stimulated repeatedly before it has completely relaxed from the previous stimulus

The larger the number of calcium ions there are in the sarcoplasm, the more actin binding sites are exposed which causes greater successive contractions to occur.

What is latent period? a. The time from the initial stimulation to the start of the muscle contraction. b. the time it takes to create tension or force within the muscle c. the time it takes to shorten the muscle fiber d. the time it takes for the muscle myofilaments to move back into resting position e. the time it takes for the neurotransmitter to break down

The time from the initial stimulation to the start of the muscle contraction.