Skeletal Muscle Structure

number 2

• tendon

• epimysium

• fascicle

• perimysium

number 10

• sarcolemma

• muscle fiber

• endomysium

• bone

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

NGSS.MS-LS1-3

number 3

• fascicle

• epimysium

• bone

• blood vessel

Tags

NGSS.MS-LS1-3

number 4

• myofibril

• perimysium

• bone

• tendon

Tags

NGSS.HS-LS1-2

NGSS.HS-LS1-4

Myofibrils are composed of individual

• sarcomeres

• muscle fascicles

• myofilaments

• striations

Name the following in order from largest to smallest:

• muscle, muscle fascicle, muscle fiber, myofibril, filaments

• muscle, muscle fascicle, muscle fiber, filaments, myofibril

• muscle, muscle fiber, muscle fascicle, myofibril, filaments

• muscle, muscle fiber, muscle fascicle, filaments, myofibril

Tags

NGSS.HS-LS1-2

Thin filaments in a myofibril are

• Sarcomeres

• Sarcoplasm

• Actin

• Myosin

Muscle myofibrils

• hold muscle cells together.

• are found in the sarcolemma.

• contain myosin and actin myofilaments.

• extend from the sarcolemma to the T-tubule.

inward invaginations of the sarcolemma that run deep into the cell between the terminal cisterns

• T tubles

• striations

• sarcomeres

Thick filaments are in a myofibril are

• ATPase

• Sarcoplasmic reticulum

• Actin

• Myosin