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 
Collagen":
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 
Coloured 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 My Educational 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 
Pollute 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 Is A Horny Momma".