Anatomy Learning Flashcards
Muscles of mastication are supplied by what?
CN V3
Muscles of mastication?
Temporalis (close)
Masseter (close)
Medial pterygoid (close)
Lateral pterygoid (open)
Nerve supply of superior 1/2 of oral cavity?
CN V2
Inferior 1/2 of oral cavity supplied by what?
CN V3
Orbicularis oris supplied by what?
CN VII
Salivary glands?
Parotid
Submandibular
Sublingual
CN IX supplies what part of tongue and what use is that?
CN IX
Taste / general sensation
CN VII supplies what function and bit of tongue?
Anterior 2/3
CN VII: Taste
Anterior 2/3 of tongue supplied for general sensation by?
CN V3
Intrinsic muscle of tongue?
Styloglossus
Hypoglossus
Genioglossus
Palatoglossus
(All innervated by CNXII except palatoglossus)
What nerve innervated palatoglossus?
CN X
Filiform papillae do what?
Just touch and temperature NO taste buds
Look nice picture yay
What spinal level is thyroid?
C6
Where does oesophagus pass through diaphragm?
T10
Way to remember spinal levels of oesophagus, IVC and Aorta?
I ate 10 Eggs At 12
IVC: T8
Esophagus: T10
Aorta: T12
Vena cava: 8 letters
Oesophagus: 10 letters
Aortic hiatus: 12 letters
Look and learn this Abdo CT so you’re a good Doctor who understands things :)
Layers of digestive tract wall?
Mucosa
Submucosa
Muscularis externa
Adventitia
What layer are circular muscles part of in digestive tract wall? Plus their role
Muscularis externa layer
They length and narrow the lumen
Longitudinal muscles job and where they are in digestive tract wall?
Muscularis externa
Shorten and widen digestive tract
Muscularis mucosa is part of which layer?
Mucosa
Muscle layers in upper portion of oesophagus?
Striated skeletal muscles
Muscles in lower 2/3 of oesophagus?
Smooth muscle
What is peristalsis?
Wave of relaxation followed by contraction triggered by gut wall distension
What nervous system controls peristalsis?
Enteric nervous system
What type of cool cells are in Plexus?
Interstitial cells of cajal (pacemaker cells)
Muscle action in peristalsis?
Behind bolus:
-Circular muscle contracts/longitudinal relaxes
Infront of bolus: -
-Circular muscle relaxes/longitudinal contracts
What is the peritoneum?
Continuous membrane lining abdominal cavity
Peritoneal cavity?
Space between visceral and parietal peritoneum
Examples of intraperitoneal organs and what that means?
Covered in visceral peritoneum, minimally mobile
Liver, GB, stomach, spleen, transverse colon, small bowel, appendix
Retroperitoneal organ examples and what that means?
Only has visceral peritoneum on anterior surface, no mobility
Kidneys, pancreas, ascending and descending large bowel
Organs with mesentary: what does this mean and give examples?
Visceral peritoneum wraps around organ to form double layer, very mobile
Small bowel, transverse and sigmoid colon