Anatomy Flashcards
In which area of the body is the anus found?
Perineum
In which area of the body is the rectum and anal canal found?
Pelvis
Which GI organ is found in the chest?
Oesophagus
What is the scientific word for swallow?
Deglutition
What i the scientific word for chewing?
Mastication
What are the 4 functions of the upper GI tract?
Mastication, deglutition, taste and salivation
What is the Buccinator muscle and what is its function?
Cheek muscle which is used for facial expression and pushing lateral food bollus’
What is the nerve supply to the buccinator muscle?
CN VII (facial nerve)
How many teeth in the normal adult?
32- 16 on the mandibular dental arch and 16 on the maxillary dental arch
What type of teeth are: 1 and 2? 3? 4 and 5? 6, 7 and 8?
1 and 2 are incisors
3 is canine
4 and 5 are premolars
6, 7 and 8 are molars teeth
Which teeth are your wisdom teeth?
8
What is the head of the condylar process and where does it sit when the mouth is closed?
Head of the the mandible and sits in the mandibular fossa of the temporal bone, posterior to the articular tubercle
What is the zygomatic arch?
The extension of the temporal bone to meet the zygoma and contains the articular tubicle
What are the 3 muscles used to close the mouth?
Temporalis muscle, Masseter muscle (strongest) and the medial pterygoid muscle
What muscle is used to open the mouth?
Lateral pterygiod
What is the innervation of the 4 muscles of mastication?
Mandibular devion of the trigeminal nerve. CN V3
What in the origin and insertion of the temporalis muscle?
Origin = Coronoid process of the mandible Insertion = the temporal fossa
What is the origin and insertion of the masseter muscle?
Origin = angle of the mandable Insertion = zygomatic arch
What is the origin and insertion of the medial pterigiod muscle?
Origin = angle of the mandable (medial side) Insertion = pterigiod plates of the sphenoid bone
What is the origin and insertion of the lateral pterigiod muscle?
Origin = Condyle of mandible Insertion = pterigiod plates of the sphenoid bone
Which branch of the trigeminal nerve has motor innervation?
CN V3
What are the 2 cavities of the TMJ and what are there functions?
Superior cavity for translation and inferior cavity for rotation.
Translation moves the condyler process of the mandable onto the articular tubicle of the temporal bone to allow for more rotation
What separates the 2 cavities of the TMJ?
Articular disc
What is the course of CN V3 (mandibular devision of the trigeminal nerve?
From pons and exits the skull through the foraman ovale to to muscles of mastication and sensory area