Lab quiz - Muscular system

name the functions of the skeletal muscles

• movement

• heat

• respiration maintenance of posture

• communication

• heart beet

what is the condition in which stimuli occur so rapidly that there are no intervening relocations?

complete tetanus

in what way are skeletal muscles and cardiac similar?

they are both involuntary

what model describes contracting of the muscles?

Sliding filament model

channels that open or close in response to change across the plasma membrane?

voltage gated channels

synaptic vesicle in the neuromuscular junction contain what?

acetylcholine

lack of act in the synaptic cleft result in what?

continuous contraction

T tubules are invagination of what structure?

sarcolemma

capacity of the muscles to shorten forcefully is known as?

contractility

muscles exhibit excitability, what does this mean?

response to stimulus

sarcoplasmic reticulum does what?

stores calcium

if you have a grater response that contributes to during warm up, what is it called?

Treppe

depolarization in cell membrane occurs when?

sodium ions enter

sustain muscle contractions is known as?

tetanus

the region of the sarcomere both myosin and __?

A band

the unit of muscle contraction is called?

sacromemere