09 - Muscle Tissue: Microscopic Anatomy

The thick filament is composed of: 

• Myosin
• Actin

The thin filament is composed of: 

• Myosin
• Actin

Muscle, Fascicle, _____, Myofibril

• Muscle fiber

• Myofilament

• Sarcomere

• Actin

The ________ functions in regulation of Ca²⁺ levels. 

• Sarcoplasmic Reticulum
• T Tubules
• Mitochondria
• Fascicle

___ and ___ are regulatory proteins bound to actin. 

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

Used to create energy for the muscle cell

• nuclei

• mitochondria

• T- tubules

• myofibrils

• myosin

Tags

NGSS.HS-LS1-7

Tubes that connect the sarcolemma to the sarcoplasmic reticulum

• nuclei

• mitochondria

• T- tubules

• myofibrils

• myosin

Long ribbon-like contractile organelles that take up most of the cell.

• 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