Saturday, August 15, 2015

Histology Mnemonics


Histology Mnemonics


Vascular endothelium: simplified cross-section LIMA:
Lumen
Intima
Media
Adventitia


Organ of corti: location The organ of COrti
is inside the COchlea.


Extracellular matrix components "HELP Form 
C
ollagen":
Hyaluronic acid
Elastin
Laminin
Proteoglycan
Fibronectin
Collagen


Epiphyseal plate: zones "Real People Have
Career Opportunities":
Resting zone
Proliferative zone
Hypertrophic zone
Calcified cartilage zone
Ossification zone


Collagen: location of types Type One: bONE
Type Two: CarTwolage
Type Four: "Four on the Floor" [automotive transmission term]
basement membrane (the "floor") is mostly Type IV collagen


From cartillage to bone "Real People Have
Calcified Osses":
Resting zone (reserves)
Proliferation
Hypertrophy
Calcification
Ossification


Epipheseal plates "Rosa Parks Helped 
C
oloured Out":
Resting zone
Proliferative zonene
Hypertrophic zone
Calcificied cartliage
Osstification zone


Autonomic Nervous System: Hypothalamic Control APPS:
Anterior hypothalamic area controls Parasympathetic nervous system
Posterior hypothalamic area controls the Sympathetic.


White blood cell relative concentrations "Never Let
Monkeys Eat Bananas":
From greatest to least:
Neutrophils (65%)
Lymphocytes (25%)
Monocytes (6%)
Eosinophils (3%)
Basophils (1%)
· Alternatively: "Nine Little Monkeys Eating Bananas".
· Alternatively: "Noone Likes MEducational Background".
· Alternatively: "Never Let Mamma Eat Beans".
· Can remember that Eosinophils is 3%, by the mirror image of E
is 3.


Epidermis layers "Come, Let's Get Sun
Burned":
· From superficial to deep:
Corneum
Lucidum
Granulosum
Spinosum
Basale [Germinativum]
· Alternatively: "Can Lori Get Some Gas?"
· Alternatively: "Can Little Girls Speak German?"
· Alternatively: "Can Larry Get Some Beer?"


Adrenal cortex layers [for Florida Gator fans] "Gator
Football Rocks!":
· From outside inwards:
Glomerulosa
Fasciculata
Reticularis


Epidermis layers "Bad Skin Gets Little
Calluses":
· From deep to superficial:
Basale
Spinosum
Granulosum
Lucidum
Corneum


Leukocytes: granulated and agranulated "BEN Loves
Money":
· Granulocytes:
Basophil
Eosinophil
Neurophil
· Agranulocytes:
Lymphocytes
Monocytes
· Alternatively: Granpa BEN..." to keep the granulated group
straight.


Schwann cell only myelinates 1 axon SchWANN = sounds
like ONE.
A single Schwann cell only myelinates onePNS axon.


Pituitary: anterior pituitary products: acidophilic vs basophilic
· Acidophilic:
GPA:
Growth hormone
Prolactin
Acidophilic
· Basophilic:
B-FLAT
Basophilic
FSH
LH
ACTH
TSH


Erythropoiesis stages "Powerful Businesses 
P
ollute Our Reeling Environment":
Proerythroblast
Basophilic erythroblast
Polychromatic erythroblast
Orthochromatophilic erythroblast
Reticulocyte
Erythrocyte


Basophil vs. eosinophils: effect for allergic persons 
Basophils
 are "Bad-o-phils" because they contribute to our allergic
reactions.

Eosinophils are "Easy-on-me-phils" because they counteract our
allergic reactions.


Muscle fiber: types · Type 1:
"1 slow fat red ox":
-slow twitch
-lipid accumulation
-red fibers
-oxidative
· Type 2:
"2 fast skinny white breasts":
-fast twitch
-low lipid
-white fibers, like chicken breasts


Muscle sarcomere: A vs. I as light or dark There is only one
vowel in "dark" and one vowel in "light".
These one vowels match up to their one letter names:
DArk band is the A band.
LIght band is the Iband.


Cochlea chambers: ones with perilymph vs. endolymph PerI-
ones also end with 'I': vestibulI and tympanI.
Therefore, perilymph is in scala vestibuli and scala tympani, and the endolymph
is in the scala media.


Basophil morphology Basophil has Big Blue
Balls (granules).


Muscle sarcomere: H line vs. Z disc location HAZI
(Hazy):
H line is in A-band.
Z disc is in the Iband.


Neutrophil's 2 distinctive physical features 1: There's up
to 5 lobes of the nucleus joined by thin appendages. Tie this to it being
a neutrophil nucleus by arranging the 5 lobes into a capital N for
Neutrophil.

2: the chicken leg (Barr Body) sticking out. Say it out loud: chick-N.
The chick-N leg is for Neutrophil.


Taste buds: vallate vs. fungiform distribution Cross
sectional shape of the top of the bud tells their distribution.
Vallate: has a shallow 'V' at the top, so has a 'V'
distribution at the back of the tongue.
Fungiform: top is round so it is towards the round end of the
tongue.
· See diagram.
· Note vallate is also sometimes called circumvallate.


Pancreatic exocrine cells: nuclei A cells are
indented around the capital A.
B cells have a round nucleus like a B lymphocyte.
· See diagram.
D cells have Different shapes and sizes.


Epidermis layers [for Star Trek fans] "Brent Spiner
Gained Lieutenant Commander":
· From deep to superficial:
Basale
Spinosum
Granulosum
Lucidum
Corneum


Muscle cells: cardiac vs. skeletal's nuclei location/number
Nuclei location mirrors where the muscle is located in human body.
Heart muscle is in the middle of body, so heart muscle has nucleus in 
middle
.
Skeletal muscles are at periphery of body, so nuclei are at periphery.
Also, you have 1 heart, so usually only 1 nucleus per heart muscle cell, but
have many skeletal muscles, so have many nuclei per long fibre.


Muscle sarcomere bands "Zee Intelligent Animal
Has Muscle":
· From the Z disk, working inward, remembering symmetry:
Z I A H M H A I Z.
· Alternatively: "Zoe IA Horny Momma".

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