Part 3 Flashcards
Where is the submandibular salivary gland located?
in Digastric triangle.
To where does the submandibular salivary gland extend anteriorly?
Mental foramen.
To where does the submandibular salivary gland extend posteriorly?
Angle of mandible.
To where does the submandibular salivary gland extend above?
Mylohyoid line.
To where does the submandibular salivary gland extend below?
Intermediate tendon of digastric.
What are the two parts of the submandibular salivary gland?
Superficial part and deep part.
What does the superficial part of the submandibular salivary gland relate to medially?
Mylohyoid.
What does the superficial part of the submandibular salivary gland relate to laterally?
Mandible.
What does the superficial part of the submandibular salivary gland relate to below?
Skin & Fascia
What does the deep part of the submandibular salivary gland relate to above?
Lingual nerve.
What does the deep part of the submandibular salivary gland relate to below?
Hypoglossal nerve.
Where does the duct of the submandibular salivary gland open?
on summit of sublingual papilla in floor of mouth at side of frenulum of tongue.
What is the arterial supply of the submandibular salivary gland?
facial artery & lingual artery.
What is the nerve supply of the submandibular salivary gland?
sensory : Lingual nerve
sympathetic: Plexus around the facial artery
parasympathetic: Facial nerve via chorda tympani nerve
relay in Submandibular ganglion.
Where is the sublingual salivary gland located?
under the mucous membrane of the floor of the mouth, forming an elevation called the sublingual fold.
What are the relations of the sublingual salivary gland?
above: mucous membrane,
below: mylohyoid,
laterally: mandible,
medially: the tongue.
How many ducts does the sublingual salivary gland have?
10-20 small ducts which open on sublingual fold.
What is the arterial supply of the sublingual salivary gland?
Facial artery & Lingual artery.
What is the nerve supply of the sublingual salivary gland?
sensory: lingual nerve,
sympathetic: plexus around the facial artery,
parasympathetic: facial nerve via the chorda tympani nerve,
relaying in submandibular ganglion.
What is the shape of the thyroid gland?
butterfly-shaped with an isthmus & two lateral lobes.
Where is the isthmus of the thyroid gland located?
front of 2nd, 3rd, 4th tracheal rings.
Lateral lobes extend above to :
Thyroid cartilage
What are the relations of the isthmus of the thyroid gland?
anteriorly: skin, fascia, infrahyoid muscle
posteriorly: 2nd, 3rd, 4th tracheal rings.
What are the relations of the lateral lobes of the thyroid gland?
Anterolateral: Skin, Fascia, Infrahyoid & Sternomastoid muscles
Posterior: Parathyroid glands & CCA
Medial: Larynx, Pharynx & External laryngeal nerve above ; Trachea, Esophagus, Recurrent nerve below.
What is the arterial supply of the thyroid gland?
superior thyroid artery, inferior thyroid artery, thyroid ima artery.
What is the venous drainage of the thyroid gland?
superior thyroid vein, middle thyroid vein, inferior thyroid vein.
Lateral lobes extend below to :
5th or 6th tracheal rings
