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Dental Science > The Lymphatic System and Spread of Dental Infection Final Exam > Flashcards

The Lymphatic System and Spread of Dental Infection Final Exam Flashcards

1
Q

2 Components to the Circulatory System they are related

A
  • Cardiovascular system

- Lymphatic system

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2
Q

Anatomically blood vessels and lymphatics lie in close ___

A

proximity

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3
Q

Lymphatic vessels ___ and ___ than capillaries

A

Larger

Thicker

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4
Q

Constant ____ of fluid between the 2 systems

A

recirculation

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5
Q

Lymphatic also plays a key role in the ___ _____

A

immune system

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6
Q

The lymphatic system has similar ___ as veins

A

valves

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7
Q

Does the tooth have the lymphatic system or cardiovascular system or both

A

BOTH

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8
Q

clear watery fluid that drains from the surrounding tissues

and into the lymphatic system

A

Lymph

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9
Q

WBC, actively remove toxins

A

Lymphocytes

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10
Q

channels that drain tissue and empty into larger

DUCTS and carries back to the venous system

A

Lymphatic vessels

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11
Q

small bean shaped nodules located along the path of

the lymphatic system, filter toxins from the vascular system

A

Lymph nodes

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12
Q

mass of lymph tissue in the oral cavity and pharynx

area

A

Tonsillar tissue

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13
Q

mass of lymph tissue in the oral cavity and pharynx
area
-Palatine-between faucial pillars -Lingual-base of tongue
-Pharygeal-posterior wall of nasopharynx (adenoids)

A

Tonsillar tissue

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14
Q

Lymphatic Drainage

A

-Excess blood plasma is forced out of the
vascular capillaries and into the tissue
- It then enters the lymphatic vessels and is
called lymph
- Lymphatic vessels unite to travel through a
series of nodes
- Then into main collecting ducts that are not
bilateral on right and left

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15
Q

Clinical Significance of Lymphatic Tissue:

What are 2 Roles in maintaining health?

A
  1. Stores lymphocytes (WBC) that remove toxic products

2. Filtration system to prevent toxins or pathogens from entering the blood

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16
Q

a change in the size and consistency of lymph nodes as

a result of a disease process ex. Cancer or infection

A

Lymphadenopathy

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17
Q

l Firm to hard l Swollen l Possibly tender (from the pressure on area nerve) l Sometimes fixed

These are characteristics of a healthy or unhealthy palpation of lymph nodes

A

unhealthy

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18
Q

The 2 groups of Nodes

A
  • Primary Lymph Nodes (Regional or Master)-thymus and bone marrow
  • Secondary Lymph Nodes (central)
19
Q

Primary Lymph Nodes directly ___ lymph from a particular region or organ

A

drains

20
Q

Nodes that collect lymph from the regional or primary nodes.

A

Secondary Lymph Nodes

21
Q

What happens when the disease agent

reaches the venous system?

A

Goes to heart and ….

22
Q

Primary Lymph Nodes directly ___ lymph from a particular region or organ

A

drains

23
Q

Nodes that collect lymph from the regional or primary nodes.

A

Secondary Lymph Nodes

24
Q

What happens when the disease agent

reaches the venous system?

A

Goes to heart and ….

25
Q

infection with suppuration (pus)
resulting from the entrapment of
pathogens in a contained space

A

Abscess

26
Q

Diffuse inflammation of soft

tissue spaces

A

Cellulitis

27
Q

inflammation of the bone

marrow

A

Osteomyelitis

28
Q

pericoronal abscess caused

by an erupting 3rd molar

A

Periocoronitis

29
Q

Abscess will take the path of least or most resistance: forms a ___??

A

least

fistula

30
Q

Fistula is opening it is called a

A

Stoma

31
Q

§ The spread of infection through fascial spaces can result
in the formation of cellulitis § Symptoms: severe pain, redness, swelling, diffuse
edema, sever inflammation that is firm, may form an
abscess

A

Cellulitis

32
Q

l Inflammation of the bone marrow l Can be localized to any bone or generalized l Invasion of long bone by pathogens l Jaw bone osteomyelitis
¡Pathogens from a PA abscess
¡Extension of cellulitis
¡Contaminated surgical site l Most common in mandible (thick cortical plate
reduces vascularity)
¡Paresthesia of IA nerve may occur

A

Osteomyelitis

33
Q

Is osteomyelitis rare or common? What is used to treat

A

Rare due to antibiotics and readily avialable dental care

34
Q

l If infection cannot drain through a fistula, it
will spread into various tissue spaces
within the body l These spaces are referred to as ____ ____because they are sometimes
located between layers of fascia of the
body (___ ____in healthy people are
filled with loose CT)

A

fascial

spaces

35
Q

What is Fascia

A

l Layer of fibrous connective tissue that
envelopes the body under the skin and
surrounds:
¡Muscles ¡Bones ¡Nerves ¡Vessels ¡Organs

36
Q

Pterygomandibular spcce is located ___ to the ramus of the ___

A

deep

mandible

37
Q

Located in the
cheeks between the
buccinator and
masseter muscles

A

Buccal Space

38
Q

l Located in the canine
fossa l Also called: Infraorbital
Space

A

Canine Space

39
Q

Located under the chin is the ____ space

A

submental

40
Q

Located in the FOM above the mylohyoid muscle

A

Sublingual space

41
Q

Located in the floor of the mouth under the

mylohyoid muscle

A

Submandibular space

42
Q

Ludwig’s Angina

A

l Cellulitis of the Submandibular space (most often
resulting from dental infections of the 3rd molars or
pericoronitis) l Infection will involve the submandbular space bilaterally,
with the risk of spreading to the retropharyngeal space of
the neck l Massive swelling extending down the neck l As the retropharyngeal space or “danger space”
becomes involved, edema of larynx may cause complete
respiratory obstruction

43
Q

Ludwig’s Angina Infection will involve the submandbular space _____

A

bilaterally

44
Q

l Infection of the _________l Spread of dental infection due to abscess,
or needle track contamination l Signs and symptoms: fever, drowsiness,
rapid pulse, impairment of CN VI – double
vision, may lead to fatal meningitis!!!

A

cavernous venous sinus

Dental Science (27 decks)

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