Histo Lec - M7 Muscle Tissue

Question 1

is characterized by properties that allow movement.

Answer 1

Muscle tissue

Question 2

Short, spindle-shaped, no evident striation, single nucleus in each fiber

Answer 2

Smooth Muscle Tissue

Question 3

Long cylindrical fiber, striated, many peripherally located nuclei

Answer 3

Skeletal Muscle Tissue

Question 4

Short, branched, striated, single central nucleus

Answer 4

Cardiac Muscle Tissue

Question 5

is attached to bones and its contraction makes possible locomotion, facial expressions, posture, and other voluntary movements of the body.

Answer 5

Skeletal muscle

Question 6

forms the contractile walls of the heart.

Answer 6

Cardiac muscle

Question 7

tissue contraction is responsible for involuntary movements in the internal organs. It forms the contractile component of the digestive, urinary, and reproductive systems as well as the airways and arteries.

Answer 7

Smooth muscle

Question 8

The basic unit of skeletal and cardiac muscle

Answer 8

sarcomere

Question 9

How many percent of the body mass is made up of skeletal muscle?

Answer 9

40%

Question 10

The cells of cardiac muscle

Answer 10

cardiomyocytes

Question 11

sarcomere consists of

Answer 11

thin filaments and thick filaments.

Question 12

The thin filaments themselves consist of globular proteins called

Answer 12

actin

Question 13

The thin filament also contains two other proteins which are involved in muscle contraction

Answer 13

troponin and tropomyosin

Question 14

The thick filament consists of a protein called

Answer 14

myosin

Question 15

is the region that only contains the thick filaments,

Answer 15

H-zone