Lesson 6

Question 1

Primary tissue of motion responsible for
the movement of the different parts of
the body

Answer 1

➢ MUSCULAR TISSUE

Question 2

• The smooth and skeletal muscle
  fibers are bound together by areolar
  tissues.
• Long, cylindrical, multinucleated
  (more than 1 nucleus)

Answer 2

➢ MUSCLE FIBER (CELL)

Question 3

• Contain blood vessels and nerves

Answer 3

➢ AREOLAR TISSUES

Question 4

• Bound by intercalated disks

Answer 4

➢ CARDIAC MUSCLE FIBERS

Question 6

It is the unit of structure and function It is also elongated and contains myofibrils.

Answer 6

MUSCLE FIBER

Question 7

MYOFIBRIL is Composed of ____

Answer 7

myofilaments

Question 8

• The muscles are acidophilic in
  staining affinity.
• The only stain it can take up is acid

Answer 8

➢ STAINING OF MUSCLES

Question 9

• Dense irregular connective tissue
• Sheath that surrounds the entire
  muscle
• Outer part

Answer 9

EPIMYSIUM

Question 10

• Dense irregular connective tissue
• Sheath that surrounds the fascicle

Answer 10

PERIMYSIUM

Question 11

it is a bundle of muscle
fibers; cylindrical

Answer 11

Fascicle

Question 12

• Thin delicate layer of reticular fibers
  and scattered fibroblast
• Innermost sheath surrounding
  individual muscle fiber/myocyte

Answer 12

ENDOMYSIUM

Question 13

• Muscle plasma membrane
• Acts as cell wall

Answer 13

SARCOLEMMA

Question 14

Cytoplasm of a muscle fiber

Answer 14

SARCOPLASM

Question 15

• The smallest functional unit of
  striated muscle tissue
• Main contractile unit of skeletal
  muscle fiber (myocyte)
• Structure between two Z disc

Answer 15

SARCOMERE

Question 16

this Composed of two main protein filaments

Answer 16

o Thin actin filament
o Thick myosin filaments

Question 17

• Marks the center of the sarcomere.

Answer 17

➢ M line

Question 17

The area where two actin filaments
connect and transverse the I bands.

Answer 17

➢ Z disc

Question 18

• Area between the M line and Z disc
  and this zone contains only the
  myosin
• Does not contain thin (actin) filaments.
• The center of the A band
• No overlap between the thick and the
  thin filaments

Answer 18

➢ H zone

Question 19

3 TYPES OF MUSCULAR TISSUE

Answer 19

1. Cardiac muscle / striated voluntary muscle
2. Skeletal muscle / striated muscle
3. Smooth muscle

Question 20

MUSCULAR TISSUE
Presence of intercalated discs

Answer 20

2. Skeletal muscle / striated muscle

Question 21

MUSCULAR TISSUE
Nucleus: Flat – located under the cell membrane

Answer 21

2. Skeletal muscle / striated muscle

Question 22

MUSCULAR TISSUE
Nucleus: Round – shape of muscle is spindle-shaped

Answer 22

3. Smooth muscle

Question 23

It is the unit of structure and function.
It is elongated and contains myofibrils.

Answer 23

The Muscle Fiber

Question 24

It is composed of myofilaments.

Answer 24

Myofibril

Question 25

The muscles are acidophilic in staining affinity.

Answer 25

Staining of Muscles

Question 25

Types of Muscular Tissue

Answer 25

1. Cardiac muscle / striated voluntary muscle 2. Skeletal muscle / striated muscle 3. Smooth muscle

Question 26

Smooth Muscle Middle of the _____

Answer 26

esophagus

Question 27

The Smooth Muscle Interior anal _____

Answer 27

sphincter

Question 28

The Smooth Muscle Wall of the _____

Answer 28

alimentary duct

Question 29

The Smooth Muscle Urinary and _____

Answer 29

genital tracts

Question 30

The Smooth Muscle Walls of _____

Answer 30

arteries

Question 31

The Smooth Muscle Veins and larger _____

Answer 31

lymphatics

Question 32

The Smooth Muscle Capsule of the _____

Answer 32

spleen

Question 33

Smooth Muscle ________ muscles in the skin

Answer 33

Arrectores pilorum

Question 34

Smooth Muscle ________ body of the eye

Answer 34

Iris and ciliary

Question 35

Smooth Muscle ________ of mammary gland

Answer 35

Areola

Question 36

Smooth Muscle Subcutaneous tissue of the ________

Answer 36

scrotum

Question 37

Anal Sphincter The ________ can be voluntary controlled.

Answer 37

exterior anal sphincter

Question 38

Anal Sphincter The _________ is not voluntarily controlled

Answer 38

interior anal sphincter

Question 39

Anal Sphincter Loss of control of interior anal sphincter can result to _________

Answer 39

incontinence

Question 40

Anal Sphincter ________ is the lack of voluntary control over urination and defecation.

Answer 40

Incontinence

Question 41

These are tiny hair erector muscles under the skin that cause “goosebumps” when there is a stimulus. This muscle can be stimulated by cold temperature or fear.

Answer 41

Arrectores pilorum muscles

Question 42

Makes up the entire musculature of the body. This is usually attached to the skeletal system. This includes the muscle of the tongue and upper portion of the esophagus.

Answer 42

Striated Muscle

Question 43

Cardiac Muscle This tissue is found in several areas in the heart

Answer 43

* The myocardium * Walls of the large vessels joining the heart like the aorta * Vena cava * Pulmonary vessels

Question 44

receive signals from the atrioventricular node (AVN) which cause it to stimulate the ventricular myocardium which activate the left and right ventricles

Answer 44

Purkinje Fibers