Muscle Structure & Contraction

What is dense connective tissue that separates an individual skeletal muscle from adjacent muscles?

• fascia

• aponeuroses

• myofibrils

• actin

Each muscle fiber is surrounded by this

• epimysium

• perimysium

• endomysium

What is the equivalent of a skeletal muscle "cell"

• sarcolemma

• fascile

• muscle fiber

• myofibril

What is the muscle fiber cell membrane called?

• sarcolemma

• sarcoplasmic reticulum

• myofibril

• filaments

The sarcoplasm contains ________________ which are threadlike and play a role in muscle contraction. They contain myosin and actin.

• tendons

• fasciles

• nucleus

• myofibrils

What are 3 basic types of muscle found in the body?

• Skeletal

• Smooth

• Cardiac

• Tendon

T or F: Muscles assist in movement of cardiovascular veins and lymph?

• true

• false

List the structures of the muscle organ from smallest to largest

• sarcomere, myofibril, muscle fiber, fascicle

• epimysium, perimysium, fascicle, muscle fiber, myofibril, sarcomere

• myofibril, sarcomere, muscle fiber, fascicle, epimysium, perimysium

• muscle fiber, sarcomere, myofibril, fascicle, perimysium, epimysium

How would you classify endomysium, perimysium, and epimysium?

• Connective Tissue

• Muscle Tissue

• Skeletal Muscle Tissue

• Nervous Tissue

• Epithelial Tissue

A

• Tendon

• Epimysium

• Perimysium

• Endomysium

• Fascicle

Tags

NGSS.HS-LS1-2