Quiz 6: Glandular Tissue

What does the thymus gland do?

* Produces matured T cells (T lymphocytes) that fight infection (T Cells are a type of leukocyte)

saliva

- part of the immune system - lubricates and cleanses oral cavity - aids in digestion

blood supply of thyroid gland

- superior and inferior thyroid arteries - superior, middle, and inferior thyroid veins

How many lobes does thyroid gland have?

2 (left and right)

How much saliva do parotid glands produce? What type of saliva?

25% - serous

What duct is associated with the sublingual gland?

Bartholin's duct, into sublingual caruncle/smaller ducts of Rivinus

What type of gland is thymus gland?

Endocrine gland

Lacrimal gland is paired with what?

Exocrine glands that secrete lacrimal fluid (tears)

glandular tissue

In the head and neck area, it includes the lacrimal, salivary, thyroid, parathyroid, and thymus

Where does lacrimal gland flow?

It flows down into nasolacrimal duct to drain to nose and back of throat

ranula

Large mucocele on floor of mouth of sublingual gland or major salivary gland

Where there is NO minor salivary glands?

Not found on gingiva tissue and parts of anterior hard palate

What are major salivary glands?

Parotid (25%) Submandibular (60-65%) Sublingual(10%)

Glandular system

Provides chemical substances for the body

Minor salivary glands

Smaller than major salivary glands but more numerous are the 600-1000 in number Less than 10% of all saliva

Does the thymus gland get bigger or smaller as you age?

Starts small --- gets bigger ---- then smaller by adulthood

What kind of duct do parotid glands have?

Stenson's duct (Duct located close to maxillary molars)

what type of duct does submandibular gland have?

Wharton's duct, opens to sublingual carauncle

What system control salivary glands?

autonomic nervous system

Where do minor salivary glands located?

buccal, labial, lingual, soft and hard palate, and floor of the mouth

Where does lacrimal gland travel into?

canaliculus to lacrimal sac

Where is the parotid gland located?

cheek, in front of the ear within parotid space

endocrine glands

ductless gland where secretion is emptied directly into vascular system

What type of gland is thyroid gland?

endocrine gland

mumps

enlarged parotid gland

goiter

enlarged thyroid gland

What type of glands are salivary glands?

exocrine glands, secrete saliva

Parathyroid glands

four small glands on the posterior of the thyroid gland

exocrine gland

gland with associated duct serving as passageway for secretion to be emptied directly into site of use

Where does thymus gland located?

in the thorax

Where is the lacrimal gland located?

lacrimal fossa of frontal bone

What are the major silvary glands pair with?

large paired glands and ducts associated with them (exocrine)

mucocele

lesion of the minor salivary gland

Where do the parathyroid glands located?

located within thyroid gland

thymus gland

lymphoid organ in the mediastinum that conditions T cells to react to foreign cells and aids in the immune response

Von Ebner's glands

minor salivary glands associated with circumvallate lingual papilla

What does submandibular gland secrete?

mixed secretion (%60-65) - main contributor of saliva

What does the sublingual gland secrete?

mixed, but mostly mucous (%10)

duct

passageway to carry secretion to a location

thyroid gland

produces hormones that regulate metabolism, body heat, and bone growth

What do the parathyroid glands do?

regulate calcium and phosphorus by parathyroid hormone

what does parathyroid gland regulate?

regulates calcium and phosphorus by parathyroid hormone

submandibular salivary gland

second larger major salivary gland

sialolith

stone in the salivary gland from Wharton's duct - complication of lingual nerve damage due to its location

gland

structure that produces a chemical secretion necessary for normal body functioning

Where is the sublingual gland located?

sublingual fossa

What is the smallest major salivary gland?

sublingual gland

Which gland is unencapsulated (not encapsulated by connective tissue)?

sublingual gland

What salivary gland produces the most saliva?

submandibular

Where is the submandibular gland located?

submandibular fossa

What gland is most commonly found to have salivary stone formation?

submandibular gland

Lymphatic drainage of the submandibular gland

submandibular lymph nodes

drainage of the thyroid gland

superior deep cervical nodes

What does the thyroid gland secrete?

thyroxine (matabolism/rate)

Are salivary glands large and paired?

yes

Do the minor salivary glands have ducts?

yes, but ducts are shorter than those of the major salivary glands - Each has single duct