Chapter 9: Introduction to the Muscular System

Question 1

What are the seven functions of the muscular system?

Answer 1

movement of the body

maintenance of posture

respiration

production of body heat

communication

constriction of organs and vessels

contraction of the heart

Question 2

What are the four properties of muscle tissue (Three E’s and the C)

Answer 2

1) Contractility

2) Excitability

3) Elasticity

4) Extensibility

Question 3

What are the three types of muscle tissue?

Answer 3

1) Skeletal

2) Smooth

3) Cardiac

Question 4

Contractility

Question 5

Excitability

Question 6

Extensibility

Question 7

Elasticity

Question 8

Skeletal muscle

Answer 8

The muscles we can see and control (voluntary) when we are trying to move a part of our body

Question 9

Smooth muscle

Answer 9

involuntary muscles that are involved in moving things through the body

Question 10

cardiac muscle

Answer 10

involuntary muscles that move blood through the body system.

Question 11

epimysium

Answer 11

loose connective tissue that surrounds the muscles

Question 12

perimysium

Answer 12

loose connective tissue surrounding muscle fibers; allows for passage of blood vessels and nerves.

Question 13

endomysium

Answer 13

loose connective tissue surrounding each individual muscle fiber.

Question 14

tendons

Answer 14

attachments from muscle to something else (usually a bone)

Question 15

aponeuroses

Question 16

Motor neurons

Answer 16

A motor nueron attaches and controls several muscle fibers for voluntary movements

Question 17

How do the blood vessels reach the muscles?

Answer 17

Through the connective tissue

Question 18

capillary

Answer 18

small blood vessles in smaller tissues

Question 19

Describe skeletal muscle cells and tissues

Answer 19

large and long multinucelated cells that are stacked together. The nucleus is on the side of the cell. Cells are striated (what else?)

Question 20

Describe cardiac muscle cells and tissues

Question 21

Describe smooth muscle cells and tissues