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What is the main function of a muscle"?
Contracting
What are the main functions of the muscular system?
Movement, Maintaining Posture, Stabilizing Joints, Generating Heat, Controls Openings (sphincters) and expressions, protection (reflexes)
What are the 3 types of muscle in the body?
Skeletal, Smooth, Cardiac
What are the main characteristics of Skeletal Muscle?
Multinucleated, thin cells, Striated, runs the entire length of the muscle, voluntary
What is the location of skeletal muscles?
All over the body attached to bones
What are the main functions of skeletal muscles?
producing body movements and heat
What are the main characteristics of cardiac muscle?
single nucleated, involuntary, intercalated disks for cell to cell attahcment
What is the location and function of cardiac muscle?
the heart. pumps blood to the body via heart contraction
What are some of the main characteristics of smooth muscle?
single nucleated located in the middle of the cell, unstriated- cells are tapered at the ends, involuntary
What is the location of smooth muscle?
Walls of organs, blood vessels, eyes, glands, skin
What is the main function of smooth muscle?
moves products internally
What are the connective tissue components of skeletal muscle?
Epimysium, perimysium, and endomysium
What is the speed of a skeletal muscle contraction?
slow to fast
What is the connective tissue componetents of smooth muscle?
Endomysium
What is the speed of a smooth muscle contraction?
slow
What is the connective tissue componetents of cardiac muscle?
Endomysium attached to the fibrous skeleton of the heart
What are some additional characteristics of skeletal muscle
attaches the the skeleton, attached by tendons to bones (aponeuroses), strong force, tire easily (muscle fatigue)
What is the endomysium?
Tissue that encloses a single muslcle fiber
What is the perimysium?
Tissue that encloses a group of muscle fibers known a fascicle.
What is the epimysium?
Tissue that surrounds the entire muscle fiber. An entire group of fascicles make a skeletal muscle.
What does the epimysium blend into at the ends of muscles?
A connective Tissue Attachment
What are the two types of muscle attachment
Aponeuroses and Tendons
What is a Aponeuroses?
sheet-like structures of connective tissue (sometimes referred to as fascia). They attach muscles to bones, cartilage, or connective tissue coverings.
What is a Tendon?
A cord like structure that often crosses a joint due to its toughness and small size
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