Muscle

Question 1

What are the 3 types of muscle?

Answer 1

Skeletal
Cardiac
Smooth

Question 2

Skeletal Muscle

Answer 2

Individual muscle cells fuse during fetal development to form muscle fibers

• each fiber=one long cell
• multipl nuclei located at periphery of the cell

Question 3

Contraction in skeletal muscle

Answer 3

Voluntary and can be rapid

Question 4

Cardiac Muscle

Answer 4

Individual cells branch

-single central nuclei

Question 5

Contraction of cardiac muscle

Answer 5

Involuntary and rapid

-stimulus arises from within the specialized impulse conducting system of the heart

Question 6

Smooth Muscle

Answer 6

Spindle shaped cells

-single central nucleus

Question 7

Contraction of smooth muscle

Answer 7

Involuntary and slow
-stimulus for contraction may be intimated by nerve impulses, hormones, stretch, or autonomously by smooth muscles themselves