Microscopic Muscle Anatomy (NEW)

Used to create energy for the muscle cell

• nuclei

• mitochondria

• T- tubules

• myofibrils

• myosin

Long ribbon-like contractile organelles that take up most a muscle cell.

• nuclei

• mitochondria

• T- tubules

• myofibrils

• myosin

Tubes that connect the sarcolemma to the sarcoplasmic reticulum

• nuclei

• mitochondria

• T- tubules

• myofibrils

• myosin

Thick myofilament made of protein with cross bridges

• nuclei

• mitochondria

• T- tubules

• myofibrils

• myosin

Plasma membrane in muscle cell

• sarcolemma

• sarcoplasma

• sarcoplasmic reticulum

• sarcomere

• actin

Series of tubes that store calcium ion

• sarcolemma

• sarcoplasma

• sarcoplasmic reticulum

• sarcomere

• actin

Contractile unit in myofibrils

• sarcolemma

• sarcoplasma

• sarcoplasmic reticulum

• sarcomere

• actin

Thin myofilament made of contractile protein

• sarcolemma

• sarcoplasma

• sarcoplasmic reticulum

• sarcomere

• actin

Controls the cell's activity. More than one found in muscle cell/fiber

• nuclei

• mitochondria

• T- tubules

• myofibrils

• myosin

___ and ___ are regulatory proteins bound to actin. 

• Troponin and tropomyosin
• Myosin and actin
• Calcium and Oxygen
• Glycogen and hemoglobin