Ch. 1 Pt 2 Nerve Supply, Blood Supply, and Lymphatic System

innervation of periodontium occurs via…

branches of the trigeminal nerve (Cranial Nerve V)

Second branch innervates ____

maxilla

Third branch innervates ______

mandible

The trigeminal nerve is responsible for…

sensory innervation of teeth and motor function when chewing and talking

Nerve receptors in periodontium register…

pain, touch, and pressure

Nerves in ligaments provide…

information about pressure to regulate chewing forces and movement

Innervation of maxillary gingiva via…

superior alveolus nerves, infraorbital, greater palatine and nasopalatine nerves

innervation of mandibular gingiva via…

mental, buccal, and sublingual branch of lingual nerves

Innervation of teeth and PDL of maxilla via…

superior alveolar nerves

Innervation of teeth and PDL of mandible via…

inferior alveolar nerve

Nerve receptors in gingiva, alveolar bone, and PDL register…

pain, touch and pressure

Nerves in PDL:

• provide information about movement and tooth position

• provide sensations of light touch or pressure

• play important role in regulation of chewing forces

Vessels of the periodontium join together to create..

a complex system that supplies blood to periodontal tissues

The vessel network acts as a unit to supply ____ to maxilla and mandible

blood

Major function of the vessel network is to transport ____ and _____ to periodontal cells

oxygen, nutrients

The vessel network removes ___ and waste products from cells

CO2

Rich supply accounts for _____ changes in gingivitis

color

Blood supply to Maxillary gingiva, PDL and bone via

anterior and posterior superior alveolar, infraorbital and greater palatine arteries

Blood supply to Mandibular gingiva, PDL, and bone via

inferior alveolar artery and its branches; buccal, facial, mental, and sublingual arteries

Blood supply to teeth and periodontal tissues:

• superior alveolar to maxillary

• inferior alveolar for mandibular

Many branch arteries:

dental, intraseptal, supraperiosteal, subepithelial plexus, periodontal ligament vessels, dentogingival plexus

Anastomosis occurs…

naturally in the body, where veins and arteries connect to transport blood around the body

Network of lymph nodes connected by lymphatic vessels play a part in the body’s ____ ____

immune defense

Where are lymph nodes found?

both sides of neck, head, armpits, and groin

Lymph nodes filter and trap bacteria, fungi, and viruses and ______ them from the body

eliminate

Submandibular lymph nodes drain most of the ______ _____

periodontal tissues

Deep cervical lymph nodes drain ______ ______ ______

maxillary palatal gingiva

Submental lymph nodes drain gingiva in area of -________ ________

mandibular incisors

Jugulodigastric lymph nodes drain gingiva in ______ _______ _______

third molar area