Muscle Physiology - Figures

The structure labeled "G" is the ....

• A band

• I band

• Myosin

• H zone

The structure labeled "B" is covered in ....

• endomysium

• sarcolemma

• perimysium

• epimysium

Tags

NGSS.HS-LS1-2

The substance labeled "C" is stored inside of which structure?

• synaptic cleft

• synaptic vesicle

• motor end plate

• sarcoplasmic reticulum

This structure is made of overlapping ACTIN and MYOSIN to produce a dark band.

• Structure A

• Structure D

• Structure G

• Structure F

We can tell that these cells illustrate SKELETAL muscle because they ....

• are LONG, CYLINDRICAL and STRIATED

• have a NUCLEUS, are TOUCHING and require ENERGY

• contract in UNISON, have a CELL MEMBRANE and never DIVIDE

• are FLAT, STACKED and TIGHT

The only NON-LIVING component in this figure is structure...

• Structure A, the muscle

• Structure B, the fascicle

• Structure C, the muscle fiber

• Structure D, the myofibril

What is the cell membrane of structure C called?

• Epimysium

• Endomysium

• Sarcolemma

• Both Endomysium AND Sarcolemma

Structure B is correctly identified as the ...

• A band

• I band

• actin protein

• myosin protein

The structure labeled "F" is most likely ...

• The axon of a MOTOR neuron

• The axon of a SENSORY neuron

• The motor end plate

• The neuromuscular junction

Identify structure "A"

• muscle fiber

• myofibril

• nucleus

• sarcolemma