Lab Exam 3 - Structure of Skeletal Muscle (Exercise 12)

Question 1

Skeletal Muscle Tissue and Connective Tissue Converings: Define 1

Answer 1

1. Perimysium

Question 2

Skeletal Muscle Tissue and Connective Tissue Converings: Define 2

Answer 2

2. Epimysium

Question 3

Skeletal Muscle Tissue and Connective Tissue Converings: Define 3

Answer 3

3. Fascicle

Question 4

Skeletal Muscle Tissue and Connective Tissue Converings: Define 4

Answer 4

4. Endomysium

Question 5

Skeletal Muscle Tissue and Connective Tissue Converings: Define 5

Answer 5

5. Muscle Fiber

Question 6

Skeletal Muscle Tissue and Connective Tissue Converings: Define 6

Answer 6

6. Myofibril

Question 7

Skeletal Muscle Tissue and Connective Tissue Converings: Define 7

Answer 7

7. Perimysium

Question 8

Skeletal Muscle Tissue and Connective Tissue Converings: Define 8

Answer 8

8. Endomysium

Question 9

Skeletal Muscle Tissue and Connective Tissue Converings: Define 9

Answer 9

9. Muscle Fiber

Question 10

Skeletal Muscle Tissue and Connective Tissue Converings: Define 10

Answer 10

10. Sarcolemma

Question 11

Skeletal Muscle Tissue and Connective Tissue Converings: Define 11

Answer 11

11. Myofibril

Question 12

Skeletal Muscle Tissue and Connective Tissue Converings: Define 12

Answer 12

12. Myofilament/filament

Question 13

Cross-Section of a Fasicle: Define 1

Answer 13

1. Endomysium

Question 14

Cross-Section of a Fasicle: Define 2

Answer 14

2. Skeletal muscle fiber in cross-section

Question 15

Cross-Section of a Fasicle: Define 3

Answer 15

3. Fascicle

Question 16

Cross-Section of a Fasicle: Define 4

Answer 16

4. Perimysium

Question 17

Longitudinal section of muscle fibers: Define 1

Answer 17

1. Width of skeletal muscle fiber

Question 18

Longitudinal section of muscle fibers: Define 2

Answer 18

2. Nucleus

Question 19

Longitudinal section of muscle fibers: Define 3

Answer 19

3. Striation

Question 20

Skeletal Muscle Fiber: Define 1

Answer 20

1. Triad

Question 21

Skeletal Muscle Fiber: Define 2

Answer 21

2. Sarcolemma

Question 22

Skeletal Muscle Fiber: Define 3

Answer 22

3. Myofibril

Question 23

Skeletal Muscle Fiber: Define 4

Answer 23

4. T-Tubule

Question 24

Skeletal Muscle Fiber: Define 5

Answer 24

5. Terminal Cisterna of Sarcoplasmic Reticulum

Question 25

Skeletal Muscle Fiber: Define 6

Answer 25

6. Sacroplasmic Reticulum

Question 26

Skeletal Muscle Fiber: Define 7

Answer 26

7. Sarcomere

Question 27

Skeletal Muscle Fiber: Define 8

Answer 27

8. Thin Filament

Question 28

Skeletal Muscle Fiber: Define 9

Answer 28

9. Thick Filament

Question 29

Skeletal Muscle Fiber: Define 10

Answer 29

10. Actin

Question 30

Skeletal Muscle Fiber: Define 11

Answer 30

11. Tropomyosin

Question 31

Skeletal Muscle Fiber: Define 12

Answer 31

12. Troponin

Question 32

Skeletal Muscle Fiber: Define 13

Answer 32

13. Myosin Heads

Question 33

Skeletal Muscle Fiber: Define 14

Answer 33

14. Myosin Tails

Question 34

Sarcomere Structure: Define 1

Answer 34

1. Z disc

Question 35

Sarcomere Structure: Define 2

Answer 35

2. M Line

Question 36

Sarcomere Structure: Define 3

Answer 36

3. H Zone

Question 37

Sarcomere Structure: Define 4

Answer 37

4. I Band

Question 38

Sarcomere Structure: Define 5

Answer 38

5. A Band

Question 39

Structure of the neuromuscular junction: Define 1

Answer 39

1. Axon Terminal

Question 40

Structure of the neuromuscular junction: Define 2

Answer 40

2. Synaptic End Bulb

Question 41

Structure of the neuromuscular junction: Define 3

Answer 41

3. Synaptic vesicle with acetylcholine

Question 42

Structure of the neuromuscular junction: Define 4

Answer 42

4. Synaptic Cleft

Question 43

Structure of the neuromuscular junction: Define 5

Answer 43

5. Motor end plate

Question 44

Structure of the neuromuscular junction: Define 6

Answer 44

6. Receptors

Question 45

Section of Skeletal Muscle Showing Axon Terminals and Synaptic Bulbs: Define 1

Answer 45

1. Skeletal Muscle Fibers

Question 46

Section of Skeletal Muscle Showing Axon Terminals and Synaptic Bulbs: Define 2

Answer 46

2. Axon Terminal with synaptic end bulbs

Question 47

Section of Skeletal Muscle Showing Axon Terminals and Synaptic Bulbs: Define 3

Answer 47

3. Motor Neuron Axon

Question 48

What is this sample?

Answer 48

Sectional View of Smooth Muscle in Wall of Ureter

Question 49

Smooth Muscle: Define 1

Answer 49

1. Nucleus of smooth muscle fibers in cross section

Question 50

Smooth Muscle: Define 2

Answer 50

2. Nucleus of smooth muscle fiber in longitudinal section

Question 51

What is this sample?

Answer 51

Longitudinal view of cardiac muscle fibers

Question 52

Cardiac Muscle: Define 1

Answer 52

1. Width of Cardiac Muscle Fiber

Question 53

Cardiac Muscle: Define 2

Answer 53

2. Nucleus of cardiac muscle fiber

Question 54

Cardiac Muscle: Define 3

Answer 54

3. Branches of Cardiac Muscle Fiber

Question 55

Cardiac Muscle: Define 4

Answer 55

4. Intercalated discs

Question 56

What is this sample?

Answer 56

Sectional View of Skeletal Muscle Fibers

Question 57

Skeletal Muscle Fibers: Define 1

Answer 57

1. Width of individual muscle fiber

Question 58

Skeletal Muscle Fibers: Define 2

Answer 58

2. Nucleus of skeletal muscle fiber

Question 59

Skeletal Muscle Fibers: Define 3

Answer 59

3. Striation

Question 60

Where do you find skeletal muscle? Describe fibers.

Answer 60

Found in: Attached to bones and skin. Description: Large, multinucleated, cylindrical cells with striation.

Question 61

Where do you find cardiac muscle? Describe fibers.

Answer 61

Found in: wall of heart. Description: smaller, branching cells, with one or two centrally located nuclei per cell. Exhibit striations , and have intercalated discs (dark bands where cardiac muscle cells connect end to end).

Question 62

Where do you find smooth muscle? Describe fibers.

Answer 62

Found in:

• Walls of digestive tract organs
• walls of arteries and veins
• walls of ureters, urinary bladder, and urethra
• intrinsic muscles of eye

Description: small, spindle-shaped (tapered at both ends) cells that are uninucleated and nonstriated.