Physiology Mnemonics
Cochlea: inner vs. outer hair cell function
"Outer cells are Out of the brain. Inner cells are Into the brain":
Outer hair cells are motor efferents to amplify signal.
Inner hair cells are sensory afferents that actually pick up the sound.
Pituitary hormones
FLAGTOP:
Follicle stimulating hormone
Lutinizing hormone
Adrenocorticotropin hormone
Growth hormone
Thyroid stimulating hormone
Oxytocin
Prolactin
Alternatively: GOAT FLAP with the second 'A' for Anti-diruetic homone/vasopressin
· Note: there is also melanocyte secreting homone and Lipotropin, but they are not well understood.
Adrenal cortex layers and products
"Go Find Rex, Make Good Sex":
· Layers:
Glomerulosa
Fasiculata
Reticulata
· Respective products:
Mineralcorticoids
Glucocorticoids
Sex hormones
· Alternatively for layers: GFR (Glomerular Filtration Rate, convenient since adrenal glands are atop kidney).
Einthoven's Triangle: organization
Corners are at RA (right arm), LA (left arm), LL (left leg).
Number of L's at a corner tell how many + signs are at that corner [eg LL is ++].
Sum of number of L's of any 2 corners tells the name of the lead [eg LL-LA is lead III].
For reference axes, the negative angle hemisphere is on the half of the triangle drawing that has all the negative signs; positive angle hemisphere contains only positive signs.
· See diagram.
Heart valves: sequence of flow
TRIPS BIAS:
TRIcuspid
Pulmonary
Semilunar
BIcuspid
Aortic
Semilunar
Alternatively: "TRIPS, MI ASs!" (uses MItral instead of BIcuspid
Compliance of lungs factors
COMPLIANCE:
Collagen deposition (fibrosis)
Ossification of costal cartilages
Major obesity
Pulmonary venous congestion
Lung size
Increased expanding pressure
Age
No surfactant
Chest wall scarring
Emphysema
· All but L/A/E decrease compliance.
Progesterone: actions
PROGESTE:
Produce cervical mucous
Relax uterine smooth muscle
Oxycotin sensitivity down
Gonadotropin [FSH, LH] secretions down
Endometrial spiral arteries and secretions up
Sustain pregnancy
Temperature up / Tit development
Excitability of myometrium down
Hyperthyroidism: signs and symptoms
THYROIDISM:
Tremor
Heart rate up
Yawning [fatigability]
Restlessness
Oligomenorrhea & amenorrhea
Intolerance to heat
Diarrhea
Irritability
Sweating
Musle wasting & weight loss
Hemoglobin and myoglobin: binding strengths, sites
"ABC" of glycosylated Hb (Hb1c):
· Glucose binds to Amino terminal of Beta Chain.
"HbF binds Forcefully":
· HbF binds oxygen more forcefully than HbA, so Oxy-Hb dissociation curve shifts to left.
Stored blood is SOS:
· Stored blood Hb binds to Oxygen Strongly because of decrease in 2,3 BPG.
2,3 BPG binding site is BBC:
· BPG binds to Beta Chain of Hb.
Myoglobin binding strength is MOM:
· Myoglobin binds Oxygen More strongly than Hb.
Oestrogen: functions
OESTROGEN SUX:
Organ development (sex organs)
Endocrine: FSH and LH regulation
Secondary sex characteristics development
Tropic for pregnancy
Receptor synthesis (of progesterone, oestrogen, LH)
Osteoporosis decrease (inhibits bone reabsorption)
Granulosa cell development
Endocrine: increases prolactin secretion, but then blocks its effect
Nipple development
Sex drive increase
Uterine contractility increase
oXytocin sensitivity increase
Electrical conductivity of tissues
"Be Careful To Shock My Best Nerve":
In order of least conductive to most conductive:
Bones
Cartilage
Tendon
Skin
Muscle
Blood
Nerve
Potassium: causes of potassium leaving cells
A$$E$
Acidosis: H+ ions move in.
Starvation: catabolism of cells.
Stress: catabolism of cells (postoperative).
Exercise: catabolism of cells.
Sodium chloride lost: K+ replaces it and is then excreted.
Alap Christy
life is an empty bowl
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