Physio (Renal & GIT) Flashcards
Iron absorbed in
Duodenum
Vit B12 absorbed in
Ileum
Normal saliva amount
1000-1500 ml
Saliva contains
mucin & ptyalin/salivary amylase
Mucin fxn
makes bolus
ptyalin/salivary amylase fxn
digests starch
deciduous teeth,: 1st tooth to errupt and when
lower central incisor errupts at 6 months
normal amount of pancreatic juice
1200-1500 ml
pancreatic juice contains
pancreatic lipase, trypsin, and pancreatic amylase
pancreatic lipase fxn
digests fat
trypsin fxn
digests protein
inactive form of trypsin
trypsinogen
trypsinogen converted into trypsin via
enterokinase aka brush border villi
pancreatic amylase fxn
digests carbohydrates
duct of santorini aka
smaller pancreatic duct
CBD + LPD =
hepatopancreatic ampulla (sphincter of oddi)
Functional unit of liver
lobule
lobule contains
hepatocytes
Hepatocytes produce
bile
normal bile amount
800-1000 ml
gall bladder function
storage of bile
Stages of deglutition
Voluntary
pharyngeal
esophageal
fastest stage of deglutition
pharyngeal aka involuntary
voluntary stage of deglutition
passageway of bolus into oropharynx
oropharynx has receptors which send signals to _____ located in _____
deglutition center located in medulla oblangata
Pharyngeal stage
Deglutition center sends signals to move:
Soft palate and uvula SUPERIORLY
Larynx FORWARD AND UPWARD
Epiglottis BACKWARD AND DOWNWARD
Sphincter affected in Gerd
LES
Stomach can store how much food
4 liters
broad part of stomach
fundus
terminal part of stomach
pylorus
two tubular glands in stomach
oxyntic gland/gastric gland
pyloric gland
oxyntic gland contains what cells
mucus neck cell
chief cell
parietal cell
mucus neck cell produces
mucus
chief celll produces
pepsin
pepsin fxn
breakdown protein
parietal cell produces
intrinsic factor & HCL
intrinsic factor fxn
absorption of Vit B12
Fxn of HCL
activates pepsinogen into pepsin
pyloric gland contains what cell
g cell
g cell produces
gastrin
gastrin fxn
maturation of gastric gland
hormones in small intestine
cholecystokinin & secretin
cholecystokinin fxn
contraction of gall bladder
secretin fxn
stimulate pancreas
Pancreatitis pain aggravated by
after eating
Pancreatitis pain relieved by
Sitting upright (acute)
Leaning forward (chronic)
Kehr sign
pain on left shoulder d/t pancreas problem
Explain renin angiotensin-aldosterone system
low bp
activation of juxtaglomerular cells which secrete RENIN
renin converts angiotensinogen into angiotensin 1
when angiotensin 1 reaches lungs, it encounters ACE which converts it into angiotensin 2 (vasoconstrictor)
Angiotensin 2 stimulates adrenal cortex which releases ALDOSTERONE (maintains electrolytes and absorbs water)
juxtoglomerular cells release
renin
renin fxn
converts angiotensinogen into angiotensin 1
Angiotensin 2 is a potent —
vasoconstrictor
Angiotensin 2 stimulates the
adrenal cortex
adrenal cortex releases
aldosterone
aldosterone function
electrolytes
H20 reabsorption
areas of reabsorption of kidney in order
PCT
Thin descending LOH
thin ascending LOH
DCT
CCT
MCT
in normal reabsorption, LF becomes diluted in the
thin ascending LOH
when dehydrated LF starts becoming concentrated in the
DCT
Stages of urine formation
Glomerular filtration
Tubular reabsorption
Tubular secretion
Normal GFR
125 mL/min
Normal NFP
10 mmHg
Route of blood flow through kidney in order
“ARS IA IA GEP”
Aorta
Renal A
Segmental A
Interlobar a
arcuate a
interlobular a
afferent arterioles
glomerular capillaries
Efferent arterioles
Peritubular capillaries
Anterior pituitary gland aka
adenohypophysis
Posterior pituitary gland hormones
Oxytocin
ADH
Prolactin
milk production
Follicle stimulating hormone
stimulates estrogen and progesterone
stimulates sperm
lutenizing hormone
stimulates testosterone
triggers ovulation
Adrenal Cortex parts + hormone
GFR ==> ACA
Adrenal medulla secretes
norepinephrine/epinephrine
Thyroid gland hormones
thyroid hormone
calcitonin
calcitonin is from
parafollicular cells
calcitonin fxn
decreases calcium
thyroid hormones form the
follicular cells
thyroid hormone fxn
development and maturation of CNS
Pancreas cells
“GABIDS”
Parathyroid gland secretes
parathormone
parathormone fxn
increases calcium in blood