the oesophagus Flashcards
THE OESOPHAGUS CAN BE DESCRIBED AS A _____ MUSCULAR ____
STRONG MUSCULAR TUBE
WHAT ARE THE THREE PARTS OF THE OESOPHAGUS
CX
TX
ABDOMINAL
WHAT IS THE SYMPATHETIC SUPPLY TO THE OESOPHAGUS
T1-5
WHAT IS THE PARASYMPATHETIC SUPPLY TO THE OESOPHAGUS
CN X
WHERE DOES THE OESOPHAGUS EXTEND BETWEEN
PHARYNX AND STOMACH
WHAT IS THE APPROXIMATE LENGTH AND DIAMETER OF THE OESOPHAGUS
25CM LONG
2CM DIAMATER
IS THE OESOPHAGUS COLLAPSED WHEN NOT INVOLVES UN FOOD PROPULSION
YES
WHAT INITIATES REFLEX PERISTALSIS IN THE INFERIOR 2/3 OF THE OESOPHAGUS
FOOD BOLUS
WHAT ARE THE TWO PHASES OF DEGLUTITION
BUCCAL PHASE
PHARYNGEAL/OESOPHAGEAL PHASE
IS THE BUCCAL PHASE OF DEGLUTITION VOLUNTARY OR INVOLUNTARY
VOLUNTARY
IS THE PHARYNGEAL/OESOPHAGEAL PHASE VOLUNTARY OR INVOLUNTARY
INVOLUNTARY
WHAT EPITHELIUM LINES THE OESOPHAGUS
STRATIFIED SQUAMOUS EPITHELIUM
AT WHAT POINT in the oesophagus DOES THE EPITHELIUM CHANGE TO SIMPLE COLUMNAR EPITHELIUM
GASTROOESOPHAGEAL JUNCTION
WHAT IS IN THE SUBMUCOSA OF THE OESOPHAGUS
MUCOUS SECRETING GLANDS
WHAT TYPES OF MUSCLE ARE PRESENT IN EACH THIRD OF THE OESOPHAGUS
SUP 1/3 SKELETAL
MID 1/3 SKELETAL AND SMOOTH
INF 1/3 SMOOTH