Muscular System

Question 1

Muscle

Answer 1

The Only tissue capable of shortening and contracting. The uniqueness of muscles is what makes body movements possible

Question 2

Skeletal Muscle

Answer 2

Function: Attaches to bones and are largely responsible for voluntary (you can move them) body movements
Structure: Striated muscle: Made of striation

Question 3

Smooth Muscle

Answer 3

Structure: Small, spindle-shaped, non-striated Involuntary, and have a single nucleus
Function: The arrangement of cells enables spontaneous contractions of neighboring cells to produce the heartbeat

Question 4

Function

Answer 4

Function: The arrangement of cells enables spontaneous contractions of neighboring cells to produce the heartbeat

Question 5

Cardiac Muscle

Answer 5

Located solely in the walls of the heart; Branched and cross-striated cells that join together at structures called intercalated discs

Question 6

Function

Answer 6

The arrangement of cells enables spontaneous contractions of neighboring cells to produce the heartbeat

Question 7

Behavioral Properties

Answer 7

Extensibility- the ability to be stretched
Elasticity- the ability to return to normal length after a stretch

Question 8

Behavioral Properties (continued)

Answer 8

Irritability- the ability to respond to stimulus. Muscles are stimulated by the nerves that supply them and resulting in muscle contraction
Contractility- the ability to contract and shorten. When a muscle contracts, it pulls on the bone at the attachment sites which is called tension

Question 9

Concentric

Answer 9

shortening of muscle

Question 10

Eccentric

Answer 10

lengthening of muscle

Question 11

Isometric

Answer 11

o change in muscle length