Muscles Histology/Overview

All muscle tissue functions through the interaction of two proteins...

• Actin and Troponin

• Myosin and Troponin

• Actin and Myosin

Main goal of muscle...

• Generate electricity
• To contract

• Store fat
• Produce force and movement

Muscle is divided into...

• Skeletal and Cardiac

• Actin and Myosin

• Striated and Non-striated

• Gap junctions

Each smooth muscle fiber is connected to its neighbor by___, allowing communication between cells.

• Adhering junctions

• Gap junctions

• Tight junctions

• Desmosomes

The entire muscle is enclosed by the...

• Perimysium

• Endomysium

• Sarcolemma

• Epimysium

The smallest contractile/functional unit of skeletal muscle...

• Troponin

• Sarcomere

• Actin

• Myofibril

Tiny “donut”-looking structures...

• Muscle Spindles

• Fascicle

• Capillaries

• Sarcomere

Important for helping to communicate to the nervous system the position and length of the muscle as a whole...

• Golgi tendon organs
• Muscle spindles
• Sensory receptors
• Tendon organs

The muscle is subdivided into three types...

• Flexor, Extensor, Abductor

• Biceps, Triceps, Quadriceps

• Skeletal, Smooth, and Cardiac muscles

• Voluntary, Involuntary, Striated