Lecture 6 Muscular System

Question 1

What are the three muscle types

Answer 1

1 - skeletal muscle
2 - smooth muscle
3 - cardiac muscle

Question 2

Skeletal muscle

Answer 2

Cells are cylindrical, very long, multi nucleated, and striated

Can be voluntarily controlled, usually not but always found in bones

Question 3

Smooth muscle

Answer 3

Cells are shorter than skeletal muscles

Has spindle shaped, unstriated, and contains a single nucleus

Not controlled voluntarily

Found in walls of hollow organs, the iris and arrector muscles

Question 4

Cardiac muscle

Answer 4

Cells are shorter, branched, striated, and contain a single nucleus, not controlled voluntary

Found in the heart only

Question 5

Somatic muscles

Answer 5

Located in body walls and longs

Recuts abdominal and biceps

Question 6

Visceral muscles

Answer 6

Locate din walls of blood vessels and in the wall of hollow organs.

Heart, airway, muscle of digestive, urinary, adn reproductive tracts

Smooth muscle + cardiac muscle

Question 7

Head of the muscle

Answer 7

The reddish, fleshy, contractile part

Most skeletal miles have white noncontractile portions (tendons) composed of collagen bundles that provide means of attachment for the muscle

Question 8

Aponeurosis

Answer 8

Broad flat sheet like tendon