Chapter 10: Structure & Function of Muscles

Question 1

muscular tissue

Answer 1

able to contract (shorten in length) to produce all the different types of movement in the body.

Question 2

types of tissue

Answer 2

skeletal muscle, cardiac muscle, and smooth muscle.

Question 3

skeletal muscle

Answer 3

moves the skeleton

Question 4

cardiac muscle

Answer 4

moves blood through heart and blood vessels

Question 5

smooth muscle

Answer 5

moves fluids and liquids through tubes

Question 6

Functional Characteristics of Muscles

Answer 6

Excitability or irritability and Conductivity
Contractility
Extensibility
Elasticity

Question 7

Excitability or irritability and Conductivity

Answer 7

generating action potential, which serves as an electrical stimulus that causes the muscle to contract.

Question 8

contractility

Answer 8

the muscle cells contract by shortening in length. The muscle contraction generates the force, which can be used to perform work.

Question 9

Extensibility

Answer 9

muscles can extend by increasing in length

Question 9

Elasticity

Answer 9

must return to original length after extension

Question 10

Functions of Muscles

Answer 10

produce physical movement, posture, joints stabilization, heat generation

Question 11

produce physical movement

Answer 11

muscles contract and relax: walking biking etc

Question 12

posture

Answer 12

posture is maintained by the skeletal muscles

Question 13

joints stabilization

Answer 13

muscles span the bone joins

Question 14

heat generation

Answer 14

muscles contract heat, shivering

Question 15

sarcolemma

Answer 15

The muscle fiber is surrounded by the cell or plasma membrane, which in the muscles is

Question 16

unbranched, multinucleate, contain mitochondria

Answer 16

muscle fibers

Question 17

muscle fibers are ensheathed by
made up of areolar tissue

Answer 17

endomysium

Question 18

Bundles of muscle fibers form

Answer 18

fascicles

Question 19

each fascicle is surrounded by fibrous connective tissue covering

Answer 19

perimysium

Question 20

entire muscle is surrounded by dense regular connective tissue covering

Answer 20

epimysium

Question 21

made up of dense fibrous connective tissue and surrounds individual muscles or binds muscles into functional groups.
forms ligaments tendons joint capsules and aponeurosis

Answer 21

deep fascia

Answer 22

sarcomere structure