Lecture 7b

Question 1

Allow movement
Excitable (respond to stimulus)
Contractile

Answer 1

Muscle Tissue

Question 2

Three types of muscle tissue:

Answer 2

Skeletal
Cardiac
Smooth

Question 3

Attached to the bones and contractions makes possible locomotion, facial expression, posture, and other involuntary movements.

Answer 3

Skeletal muscle

Question 4

Percent of body mass composed of skeletal muscle

Answer 4

40%

Question 5

Forms that contractile walls of the heart

Answer 5

Cardiac muscle

Question 6

Cells of the cardiac muscle

Answer 6

Cardiomyocytes

Question 7

Principal characteristic or cardiomyocytes

Answer 7

They contract on their own intrinsic rhythms without any external stimulation

Question 8

Cardiomyocyte attach to one another with specialized cell junctions called

Answer 8

Intercalated discs

Question 9

Rhythmically sets off a wave of electrical excitation

Answer 9

Built-in pacemaker

Question 10

Able to contract rhythmically and independently

Answer 10

Autorhythmic

Question 11

Responsible for involuntary movements in the internal organs

Answer 11

Smooth muscle tissue contraction