122 terms

Histology Slides Pictures

1. retina 2. optic nerve 3. eyelid 4. lens 5. cornea 6. lris
a: cornea; b: eyelid; c: iris; d: lens; arrow: anterior chamber; arrowhead: posterior chamber; curved arrow: acute angle
1: stratified squamous epithelium/bm; 2: corneal stroma; 3: endothelium and bm adj to stroma
arrow: anterior chamber; arrowhead: posterior chamber; curved arrow: iris
1. constrictor muscle 2. lens capsule
CB: ciliary body; C: cornea; S: sclera; curved arrow: ciliary processes; box: angle of anterior chamber
arrow: trabecular meshwork; left arrow: uveal portion; right arrow: corneoscleral portion; arrowhead: zonular fibers; curved arrow: canal of schlemm; box: anterior chamber
arrow: choroid; arrowhead: retina; curved arrow: sclera
a: outer nuclear layer; b: outer plexiform layer; c: inner nuclear layer; arrow: pigment epithelium; upper arrowhead: outer limiting membrane; region between arrowhead contains outer and inner segments of photoreceptor cells
in addition to the layers marked, what does the layer between the two arrow heads contain
a: inner nuclear layer; b: inner plexiform layer; c: ganglion cell layer; A contains horizontal cells amacrine cells, and bipolar cells
what cell types does A contain
A: anterior chamber
B: posterior chamber
See optic nerve head leaving lamina cribosa, note ciliary body that suspends lens across the center of eye and regulates its shape. Cliliary muscles contract which relaxes the tension on the zonules and allows the lens to round up for near vision. Natural state at rest is lens being flat and accommodated for distance.
A: Cornea
B: anterior chamber
C: Iris
D: lens
E: Posterior chamber
F: ciliary body:
A. Epithelium: stratified squamous
B. Bowman's membrane: Lightly staining single layer, modified basement membrane shared with stroma, serves a barrier function
C. Lamina propria: majority of tissue, low hydration level to maintain clarity
D. Descemet's membrane: shared basement membrane between LP and endothelium
E. Corneal endothelium: basal surface attached to lamina propria basement membrane, single cuboidal layer with apical surface anterior
Organ: EYE
IRIS, Four layers:
Anterior limiting layer: discontinuous stellate cells, no much of a barrier to anything
Stroma: majority of iris
Muscular layer: smooth muscle, 2 parts
Schincter papilae: Circumfrentially oriented: bulk of smooth muscle layer (opens pupil, sympathetic) Most numerous near edge near lens
Dialator papilae: Myoepitheial cells: act like smooth muscle cells, layer above posterior (parasympathetic),
Posterior epithelium: HEAVILY pigmented
Organ: EYE
A: Ciliary processes, double cuboidal epithelium, bottom with heavy pigment, basement facing inward, at surface is not pigmented, butt facing the interior of the eye, double cuboidal is apical-apical end
B: Zonules of Zinn
C: Ciliary Body
Organ: eye
Structure: Canal of schlemm
A: retinal layer
B: choroid layer
C: Sclera
Part of eye= RETINA
1.Bruchs membrane (retinal pigment epithelial layer)
2. Photoreceptor layer: heads of photoreceptors
3. external limiting membane: processes if mueller cells
4. external nuclear layer
5. outer pexiform: nucleus free zone, where synapses occuring
6. inner nuclear layer: nuclei of bipolar cells etc
7. inner plexiform layer: synapses between nuclei of inner nuclear layer and the ganglion cell layer
8. ganglion cell layer
9. retinal axon layer (plexiform layer of ganglion cells),
10. inner limiting membrane.
EYE: Retina
Left to right: Choroid, black strip, coricocapilaris layer, RPE, photoreceptor layer, outer nuclear layer, outer plexiform layer.
Part of the eye: fovea centralis
First three layers are thinned at the fovea centralis
A. Ganglion cell layer
B. Inner plexiform layer
C. Inner nuclear layer
D. Outer plexiform layer
E. Outer nuclear level
F. Photoreceptor layer
Structure: optic nerve head
Organ: Eye
A: Lens
B: Iris
Organ: Ear
Structure: Cochlea
A: Modiolus
B: pocket of spiral ganglion in the modiolus
Organ: EAR
Structure: Cochlea
Organ: EAR
Big Circle: bony outline
Small circle: organ of chordi
A: Scala vestibuli, perilymph
B: Scala media, endolymph
C: Scala tympani, perilymph
D: Reissner's Membrane= Roof
E: SG: bone (osseous spiral ligament)
Organ: Ear
Structure: cochlea
A: scala vestibuli
B: scala tympani
C: tunnel of corti with pillar cells around it
D: Modiolus
E: Spiral ganglion of cell bodies
F: Scala lamina
G: spiral ligament
Organ: EAR Arrow: Tectoral membrane, shrunkened and curled, would normally be fused over sensory hair cells A: Inner region B: Outer region C: Hair cells (singular) D: Phalangeal cells E: Tunnel of Corti F: Spiral Lamina G: Pillar cells, Forms the tunnel of corti
Organ: Ear
Structure: organ of chorti
Structure: Cristae Ampullaris
A: Cupula
B: scarpa's ganglion
Organn: EAR
A: Remnants of cupula
Organ: Ear
A: semicircular duct
ORGAN: EAR; A. Cupula
B. Cristae ampullaris
Arrow heads: HAIR CELLS, more apically located (type 1 and type 2)
Arrows: Sustentacular cells, more basally located nuclei
A. Retina
B. Chorooid
C. Sclera
D. Big purple guy= optic nerve
a. Ganglion cell layer
b. Inner plexiform layer
c. Inner nuclear layer
d. Outer plexiform layer
e. Outer nuclear layer
f. Photo receptor layer
g. Fovea centralis
A. Sclerea
C. Retinal pigmented epithelium
D. Rods and cones
E. Outer limiting membrane
F. Outer Nuclear Layer
G. Outer plexiform layer
H. Inner nuclear layer
I. Inner plexiform layer
J. Ganglion cell layer
K. Optic nerve
L. Internal limiting membrane
Organ: EYE
A- anterior limiting layer
B- lens capsule
C- Lens Fibers
D- Lens Epithelium
E. Posterior Epithelium
F. Iris
G. Muscle Layer
Organ: adrenal gland
A- z. glomerulosa
B- z. fasciculata
C- z. reticularis
D- medulla
E- Cortex
It's Labeled
Organ: Pituitary gland
A: Posterior pituitary
B: Anterior pituitary
Demo: pituitary gland
Look for the subdivisions of the pituitary gland.
Pars Tuberalis=PT,
Pars Distalis=PD,
Pars Nervosa=PN,
E. Pas Intermedia=PI.
Organ: pituitary gland
B: pars distalis; acidophils (A) and basophils (B). Blood filled sinuses (S) are also visible.

C: pars distalis; chromophobes (C) are also visible.
Organ: anterior pituitary gland
A: acidophils
B: basophils
Organ: pituitary gland
Organ: pituitary gland
Organ: thyroid
Structure: pars intermedia
Arrows: Rathke's cysts= colloid-filled cysts
Organ: pituitary gland
Sturcture: pars nervosa (posertior pituitary)
1. Nuclei of pituicytes
2. Axons of neurons in the surpaoptic and paraventricular hypothalmus
Organ: pituitary gland; pars nervosa
Organ: pituitary gland
Structure: pars nervosa (posterior pituitary)
Black arrows: herring bodies
Green arrows: pituicytes
Organ: Pituitary gland
Structure: posterior pituitary
Arrows: Herring bodies are only found in the neurohypophysis.
Organ: old pineal gland
Three structures present: pinealocytes, glial cells, brain sand
Organ: old pineal gland
Large arrows: pinealocytes
Small arrows: glial cells
Black blobs: brain sand
Organ: young pineal gland
Arrow: small amount of brain sand
Organ: thyroid gland
Organ: thyroid gland
Organ: thyroid gland
Organ: thyroid gland
Arrows: parafollicular cells, or "C-cells"
Organ: thyroid gland
Cell types: follicular and epithelial cells
Organ: thyroid
Arrow: parafollicular "C-cells"
Organ: thyroid
Arrows: parafollicular "C-cells"
Organ: parathyroid
Black arrows: chief cells
Blue arrows: oxyphils
Organ: parathyroid
Blue arrows: oxyphils
Black arrows: chief cells
Organ: parathyroid gland
Black arrows: oxyphil cells
Organ: adrenal gland
M: medulla
C: cortex
Black region: glomerulosa
Blue region: fasciculata
Red region: reticularis
Organ: adrenal medulla

Blue line: fasciculata
Red line: reticularis
Light blue line: medulla
Organ: adrenal gland
M: medulla
R: reticularis
F: fasciculata
G: glomerulosa
Organ: adrenal gland
C: cortex
M: medulla
Organ: adrenal gland
Organ: pancreas
A: acinar cells
B: islet cells
Organ: pancreas
A: Islet cells
B: acinar cells
A: Buccal Cavity
B: Thin Skin
C: Obicularis Oris
A: Lining Mucosa
B: Thin Skin
C: strat. Squamous mucosal epith
D: strat squamous keratinized epithelium
A: Obicularis Oris
A: Thin Skin
C: vermillion border
D: obicularis oris
E: labial Glands
F: Lining Mucosa
Labial Gland, secretes mucus
A. Whisker follicles
B. Sebaceous Glands
C. Obicularis Oris
Vermillion Border
A: Lip, B: Chin, from child
adult or child?
A: Labial Glands; B: Vermillion Border C: Thin Skin; D: Lining mucosa; E: obicularis oris
vermillion border
Part on left part of screen?
labial gland, mostly mucus but some serous
structure and its secretions?
challenge slide...A and B? A: Eyelid B. Tarsal Plate C. eyelashes?
Toungue a. Intrinsic muscles
b. Lingual glands
c. Serous glands of von ebner
d. strat. Squamous mucosal epithelium
e. Circumvallate papillae
Circumvallate papillae
A: Moat
B: Taste Buds
C. Lamina Propria Core
D: Serous Glands of Von Ebner
A: Mucus glands
B: Serous Glands
C: Moat
A: serous; B: mucus
A: Circumvallate Papillae
B: Serous Glands of von Ebner
Tongue, a: Taste buds, can see taste pore and hair
A: intrinsic tongue muscle B: Filiform Papillae
Tongue, A: filiform papillae B: intrinsic tongue muscle
A: Root
B: alveolus
C: Gingiva
D: Pulp Cavity
E: anatomical
F: Dentin
G: Clinical
H: Crown
A: odontoblasts
B: pulp cavity
C: Dentin
D: Gingival sulcus
E: gingiva
A: pulp cavity
B: odontoblasts
C: Predentin
D: Dentinal Tubules
E: Dentin
dentinal tubules
A: alveolar bone
B: periodontal ligament
C: sharpey's fibers
D: dentin
A: Periodontal ligament
B: cementum
C: Dentin
A: Dentin
B: Gingival sulcus
D: Peridontal ligament
E: Dental Pulp
F: Alveolar Bone
A: Dentin
B: Odontoblasts
C: Gingival sulcus
D: Periodontal ligament
E: Alveolar bone
F: Cementum
A: bone
B: dental sac
C: Dental papillae
E: Permanent tooth bud
F: Enamel Organ
G: Oral cavity
A: outer enamel epithelium
B: stellate reticulum
C: Inner enamel Epithelium
D: Enamel Organ
A: dental papillae
B: odotoblasts
C: Dentin
D: Ameloblasts
E: enamel
F: stratum Intermedium
A: Stellate reticulum
B: stratum intermedium
C: ameloblasts
D: Dentin
E: odontoblasts
F: Outer enamel epithelium
Hertwig epithelial root sheath
Forming tooth; micro slide says Cervical Loop (where two layers make a sharp bend)
A: Enamel
B: dentin with dental tubules
A: shrinkage artifact (that's what she said)
B: Dental papilla
C: Odontoblasts
D: Inner enamel epithelium
E: Dentin (on right)
F: Enamel (on right)
E: Outer enamel epithelium (on left)
F: Dental follicle (on left)
G: Stellate reticulum
parotid gland, serous secretion
Parotid Gland, A: serous acini B: adipose cells
intercalated duct of partoid gland
striated duct of parotid gland
interlobular, don't confuse with intralobular (parotid gland?)
parotid gland
submandibular gland
submandibular gland, because it is mixed serus and mucus, but mostly serus
Predominantly serous so probably submandibular; A: Interlobular duct (see the ct around it!)
B: serous
C: mucous
D: striated duct
Striated duct, probably submandibular gland, because it is predominantly serous but has mucus too
sublingual gland, due to mostly mucus
sublingual gland, due to mostly mucus
sublingual gland a: mucus gland b: serous demilunar c: striated duct
sublingual gland A: serous demilunar