Anatomy: Lecture 9 - How do we taste/chew/swallow Flashcards
What part of the Gi Tract is found in the head?
Oral Cavity
Pharynx
What part of the Gi Tract is found in the Neck?
Pharynx
Oesophagus
What part of the Gi Tract is found in the Chest?
Oesophagus
What part of the Gi Tract is found in the Abdomen?
Stomach
Small Intestine
Large Intestine
What part of the GI tract is found in the Pelvis?
Rectum
Anal Canal
What part of the Gi Tract is found in the Perineum?
Anus
What is the function of the following GI tract part:
Oral Cavity.
sensing
salivation
chewing
initiating swallowing
What is the function of the following GI tract part:
Pharynx
Defence against infection (tonsils) Swallowing
Airway protection
What is the function of the following GI tract part:
Oesophagus
Transit from pharynx to stomach
What is the function of the following GI tract part:
Stomach and Small Intestine
Transit Defence against infection (acid) Digestion & absorption
What is the function of the following GI tract part:
Large Intestine and Anus
Transit
Reabsorption of H20 & Electrolytes
Stool formation
Waste excretion
What is considered the Upper GI Tract?
oral cavity oropharynx laryngopharynx oesophagus stomach small intestine
What is considered the lower GI Tract?
caecum appendix colon rectum anal canal anus
What forms the large intestine?
caecum
appendix
colon
rectum
What is mastication?
jaw opening and jaw closing
Chewing
What type of joints are Temporomandibular joints?
Synovial Joints
Where do the temporomandibular joints articulate?
Between the Mandibular Fossa of the Articular Tubercle of the Temporal bone
AND
The head of the Condylar process of the Mandible
What are the muscles of mastication?
Masseter
Temporalis
Medial pterygoid
Lateral pterygoid
Where do the “muscles of facial expression” attach?
Between the bones of the face and the Superficial Fascia
What is the circularly arrange muscle circularly arranged around the lips that contraction draws the lips together
Orbicularis Oris
What is the function of the orbicularis oris?
Produces an anterior oral seal that prevents dribbling during ring chewing & swallowing
What are Gingivae?
Gums
What are the components of the Oral Cavity?
Upper Dental Arch - upper gum Arches of soft Palate - at back of mouth Palatine tonsil - Lateral sides The Uvula - dangly bit Lower Dental Arch - Lower jaw
What is the muscosa of the mouth covered with?
Stratified Squamous Epithelium - For Protection
What does the Gingivae and hard palate have for protection for chewing?
Keratin
What type of muscle is the tongue made from?
Skeletal Muscle - covered by Mucosa