Internal Muscle Structure

The study of the structure or form of the body and its parts

• Physiology

• Anatomy

• System Analysis

• Dissection

Tags

NGSS.HS-LS1-2

Skeletal muscles consist of numerous _____________ that contain a bundle of _______________ which are composed of repeating contractile units called _____________?

• muscle fibers, sarcomeres, myofibrils

• sarcomeres, muscle fibers, myofibrils

• sarcomeres, myofibrils, muscle fibers

• muscle fibers, myofibrils, sarcomeres

The thin filament composed of protein in a myofibril is called?

• Actin

• Myosin

What is the correct order of structure of Skeletal Muscle?

• Muscle Fiber, Endomysium, Fascicle, Epimysium, Perimysium, Tendon

• Muscle Fiber, Endomysium, Epimysium, Fascicle, Perimysium, Tendon

• Muscle Fiber, Fascicle, Endomysium, Perimysium, Epimysium, Tendon

• Muscle Fiber Fascicle, Endomysium, Epimysium, Perimysium, Tendon

Tags

NGSS.HS-LS1-2

Which of the following refers to the muscle cell?

• Myofibril

• Myofilament

• Fascicle

• Muscle fiber

Muscle myofibrils

• hold muscle cells together.

• are found in the sarcolemma.

• contain myosin and actin myofilaments.

• extend from the sarcolemma to the T-tubule.

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

Which level of muscle organization would represent the cell?

• muscle

• fascicle

• muscle fiber

• myofibril

Myofilaments contain

• actin

• tropomyosin

• myosin

• troponin