Muscular System

Question 1

State Properties of muscle fibers

Answer 1

Excitability: Refers to muscle responding to stimuli

Extensibility: Refers to muscle extending in length

Contractibility: Refers to muscle shortening in length

Elasticity: Refers to muscle stretching and returning to normal position

Question 2

Types of muscle tissue

Answer 2

Smooth: Control and maintain blood pressure and oxygen flow (found in stomach)
Cardiac: Creates the action that pumps blood from the heart to the rest of the body. (found in the heart)
Skeletal: Creates movement of the limbs (attached to bones by tendons)

Question 3

How are skeletal muscles named

Answer 3

Action of muscle: Flexion Extension
Direction of the fibers: rectus Transverus
Location Of the muscle: Anterior Posterior
Number of divisions: Bi Tri
Shape of muscle: Trapezius
Muscle point of attachment: Clavicle, mastoid process

Question 4

Isotonic Contractions

Answer 4

Tension remains the same
Muscle changes length
Concentric: Those which cause the muscle to shorten as it contracts
Eccentric: Opposite of concentric and occur when the muscle lengthens as it contracts

Question 5

Isometric Contractions

Answer 5

Length of muscle does not change during contraction