Histology Revision

Front 1

Nucleus (darker areas surrounding paleness)
Euchromatin (lighter coloured, more active central part of nucleus)
Heterochromatin (darker coloured, less active on the periphery of the nucleus)
Cytoplasm (space between the nucleus and the plasma membrane)
Plasma membrane (encapsulating the whole cell)

Back 1

Front 2

A - Mitochondria surrounded by RER
B - Ribosomes
C - Cisternae
D - Rough Endoplasmic Reticulum (RER)
E - Matrix
F - Cristae
G - Intermembrane space
H - Outer membrare

Back 2

Front 3

A - Pseudostratified ciliated epithelium of the trachea
B - Basal bodies
C - Cilia
D - Basement Membrane
E - Lamina Propria (CT containing fribroblasts)

Back 3

Front 4

a) Simple columnar epithelium of the small intestine
b)microvilli/brush border
c) goblet cell
d) lamina propria (loose CT with fibroblasts and lymphocytes present)
e) lacteal (lymphatic capillary)

Back 4

Front 5

a) Renal corpuscle, kidney (bowmans capsule with JGA)
b) Simple squamous epithelium
c) Cuboidal Epithelium

Back 5

Front 6

a) Kidney medulla
b) Cuboidal epithelium
c) Collecting Tubules, lumen

Back 6

Front 7

a) Thick skin of the foot (stratified squamous epithelium)
b) Epidermis
c) Dermis
d) Papillary layer (greater cellularity)
e) Reticular layer (greater amount of collagen)
f) Stratum corneum
g) Stratum lucidum (only in thick skin)
h) Stratum granulosum
i) Stratum spinosum
j) Stratum basale
k) Dermal papillae (projections of the dermis)
l) Duct of a sweat gland

Back 7

Front 8

a) Vagina
b) stratified squamous epithelium
c) Blood vessels
d) Smooth muscle layer

Back 8

Front 9

a) Urinary bladder, transitional epithelium
b) Dome cells (in bladder distension, these cells flatten to become squamous)
c) Columnar cells?
d) Basal cells
e) lamina propria (loose CT)

Back 9

Front 10

a) Mammary gland showing connective tissue and glands
b) Dense irregular connective tissue (darker staining with fewer nuclei)
c) Loose connective tissue (lighter stain, wispy with more nuclei)

Back 10

Front 11

a) Connective Tissue
b) Dense irregular connective tissue
c) Loose connective tissue
d) Adipocytes

Back 11

Front 12

a) Skeletal muscle
b) Muscle fibre
c) Nerve bundle
d) Nuclei (multiple per cell, at periphery)

Back 12

Front 13

a) Skeletal Muscle from the tongue
b) Muscle fibre/cell (surrounded by endomysium)
c)Bundle/fascicle of muscle fibres
d)Connective tissue (perimysium)

Back 13

Front 14

a) Cardiac muscle
b) Cardiac muscle fibre (composed of numerous cardiomyocytes stacked on to one another, can be branched)
c) Cardiomyocyte (cylindrical cell with one or two centrally located nuclei)
d) Intercalated discs (attachment between cardiomyocytes that binds the cells and allows communication)

Back 14

Label and Describe

Front 15

a) Small Intestine (duodenum)
b) Brunner's glands
c) Muscularis mucosae
d) Muscularis externis (smooth muscle)
e) Longitudinal layer of smooth muscle
f) Circular layer of smooth muscle
g) Sub mucosa
h) Serosa
i) Villi
j) Mucosa

Back 15

Front 16

Smooth muscle with transverse and longitudinal fibres

Back 16

Front 17

What are the histological features of an elastic artery?

Back 17

Intima - endothelium, CT, smooth muscle cells
Media - Smooth muscle, ELASTIC LAMINA
Adventitia - CT, Elastic fibres, thin layer

Front 18

What are the histological features of a muscular artery?

Back 18

Intima - Endothelium, CT, Smooth muscle cells, INTERNAL ELASTIC MEMBRANE
Media - Smooth muscles, Collagen fibres, few elastic fibres
Adventitia - CT, few elastic fibres, thin layer

Front 19

What are the histological features of a large vein?

Back 19

Intima - Endothelium, CT, smooth muscle cells
Media - SMOOTH MUSCLE 2-15 LAYERS, collagen fibres
Adventitia - thick layer, CT, few elastic fibres, LONGITUDINAL SMOOTH MUSCLE

Front 20

What are the histological features of a medium vein?

Back 20

Intima - endothelium, CT, Smooth muscle cells, +/- INTERNAL ELASTIC MEMBRANE
Media - smooth muscle, collagen fibres
Adventitia - CT, few elastic fibres

Front 21

What are the histological features that differentiate an arteriole from a venule?

Back 21

Arterioles contain endothelium, smooth muscle and CT in their intima, whereas venule only have endothelium ony (maybe pericytes). Arterioles have a media with 1-2 layers of smooth muscle, whereas venules can have no media. Arterioles have a very thin sheath of connective tissue as their adventitia, whereas venules have none or a layer thicker than their media.

Front 22

A) Muscular artery (medium artery)
b) endothelium
c) tunica intima (endothelium with loose CT, smooth muscle cells and internal elastic membrane)
d) internal elastic membrane (of intima)
e) tunica media (collagen, smooth muscle fibres, few elastic fibres)
f) tunica adventitia (thin layer)

Back 22

Front 23

A) Elastic Artery (large artery)
b) Endothelium
c)Tunica Intima (no internal elastic membrane)
d) Tunica Media (contains elastic lamellae)
d) Tunica Adventitia

Back 23

Front 24

A) Arteriole and venule in the dermis
b) arteriole, cross section
c) venule
d) arteriole, longitudinal section

Back 24

Front 25

a) arteriole
b) venule

Back 25

Front 26

a) Thin skin
b) Epidermis
c) dermis

Back 26

Front 27

A) Compact bone, long bone
b) periosteum
c) osteocyte
d) osteoclast

Back 27

Front 28

A) Epiphyseal plate
b) Resting cartilage
c) proliferating cartilage
d) calcified cartilage
e) bone

Back 28