Microscopic HSB Review SlidesJune2006

Compiled by: Liezl☺

EPITHELIAL TISSUE

Hair follicle

Sebaceous gland

epidermis

dermis

THIN SKIN

Fundamental: Epithelium Nucleus: Mononucleated (central)

Subtype: Stratified Squamous Epithelium Arrangement: Sheets or Layers

Specific Subtype: Stratified Squamous Keratinized Epithelium

Parenchyma: Epidermal Cell

hypodermis

EPIDERMIS (thin skin)

THICK SKIN

Stratum corneum

Stratum lucidum

Stratum granulosum

Stratum spinosum

Stratum germinativum/basalis

Stratum corneum- keratin

Stratum lucidum- eleidin

Stratum granulosum- keratohyaline granules

Stratum spinosum- layers of polyhedral cells

Stratum germinativum- mitotic layer

DERMIS:

-Papillary Layer- Loose Connective Tissue

- Reticular Layer- Dense Irregular Connective Tissue, hair follicles, arrector pili muscles, sebaceous and sweat glands

-

SWEAT GLANDS

Hair follicle

Sebaceous gland

Arrector pili muscle

Hair follicle

Sweat glands- merocrine glands Sebaceous glands- holocrine glands

LIVER

Fundamental: Epithelium Nucleus: Mono/Binucleated, centrally located

Subtype: Glandular Epithelium

Parenchyma: Hepatocytes

Shape: Polyhedral/polygonal

Arrangement: rows/columns/cords/grooves

KIDNEY Fundamental: Epithelium

Subtype: Simple Epithelium

Specific Subtype: Simple Squamous Epithelium

Parenchyma: Epithelial Cell

THYROID GLAND

Fundamental: Epithelium

Subtype: Simple Epithelium

Specific Subtype: Simple Cuboidal Epithelium

Parenchyma: Epithelial Cell

GALL BLADDER

Fundamental: EpitheliumSubtype: Simple EpitheliumSpecific Subtype: Simple Columnar EpitheliumParenchyma: Epithelial Cell

TRACHEA

Fundamental: EpitheliumSubtype: Pseudostratified EpitheliumSpecific Subtype: Pseudostratified Ciliated Columnar Epithelium with Goblet CellParenchyma: Epithelial Cell

“Sorry, wala HPO view, ang pangit kasi ng microscope ko…grr… basta obvious ung cillia sa type na to.”

URINARY BLADDER

Fundamental: EpitheliumSubtype: Stratified EpitheliumSpecific Subtype: Transitional EpitheliumParenchyma: Epithelial Cell

CONNECTIVE TISSUE

THIN SKIN- DERMIS

Fundamental: ConnectiveSubtype: FibrousSpecific Subtype: Dense Irregular Connective TissueParenchyma: Fibroblast

THIN SKIN- HYPODERMIS

Fundamental: Connective

Subtype: Fibrous

Specific Subtype: Loose Connective Tissue

Parenchyma: Fibroblast

adipocytes

Signet ring

Internal elastic membrane

External elastic membrane

MEDIUM SIZED-ARTERY

Fundamental: ConnectiveSubtype: FibrousSpecific Subtype: Elastic Parenchyma: Fibroblast

lumen

“Um, medyo iba to dun sa pinakita ni Dr. Villoria sa screen, pero similar naman.”

LIVER

Fundamental: ConnectiveSubtype: FibrousSpecific Subtype: Reticular Parenchyma: Fibroblast

“hindi demonstrable ung reticular fibers sa slide na to kasi kelangan ng silver staining para makita”

Ganito itsura pag my silver stain

Umbilical vein

Umbilical artery

Fundamental: Connective

Subtype: Mucus Connective Tissue

Tissue/Organ: Umbilical Cord

Wharton’s Jelly

UMBILICAL CORD

TENDON

Fundamental: ConnectiveSubtype: FibrousSpecific Subtype: Dense Regular Connective TissueParenchyma: Fibroblast

COMPACT BONE

Volkmann’s canal

Haversian Canal

lamella

Lacuna

Fundamental: Connective

Subtype: Osseous/Bone

Specific Subtype: Compact Bone

Parenchyma: Osteocyte

Shape: Flat

Arrangement: Concentric

Number of Nucleus: Mononucleated, central

SPONGY BONE

Fundamental: Connective

Subtype: Osseous/Bone

Specific Subtype: Spongy Bone

Parenchyma: Osteocyte

Arrangement: Irregular

Osteocytes

Intratrabecular cavity

trabecula

Endosteum

osteocytesSPONGY BONE

SPONGY BONE

Trabecula

Red MarrowFat

osteoclast

SPONGY BONE

Osteoclast- multinucleated, giant cells

Perichondrium

Chondrocytes

Teritorrial matrix

Interteritorrial matrix

TRACHEA

Fundamental: Connective Shape: flat/oval/ellipticalSubtype: Cartilage Nucleus: MononucleatedSpecific Subtype: HyalineParenchyma: ChondrocytesArrangement: singly or isogenous groups

lacuna

perichondrium

chondrocytes

EPIGLOTTIS

Fundamental: ConnectiveSubtype: CartilageSpecific Subtype: ElasticParenchyma: ChondrocytesShape: flat

INTERVERTEBRAL DISC

Fundamental: Connective

Subtype: Cartilage

Specific Subtype: Fibrocartilage

Parenchyma: Chondrocytes

Shape: flat

Arrangement: rows

Chondrocytes

GAMETES, BLASTULA, EMBRYO

BLASTULA

Trophoblast is the anlage of placenta

Embryoblast is the anlage of embryo

TROPHOBLAST/OUTER CELL MASS

BLASTOCOELEEMBRYOBLAST/INNER CELL MASS

TESTIS

LUMENSEMINIFEROUS TUBULES

Testis: Leydig cell

Testis: Sertoli cell

Growing follicles

priomordialPrimary follicle

OVARY

Ovary Corpus luteum

Secondary or Secondary or antral follicleantral follicle

Primordial Primordial folliclesfollicles

Primary follicle

Growing Follicle

Growing follicle

Primordial follicles

Primary oocyte

Zona pellucida

Secondary (Antral follicle)

Primary oocytePrimary oocyte

Zona pellucidaZona pellucida

Corona radiataCorona radiata

Membrana Membrana granulosagranulosa

AntrumAntrum

Ovary Mature (Graafian follicle)

Antrum (filled Antrum (filled with liquor with liquor folliculi)folliculi)

Corona radiataCorona radiata

Zona pellucidaZona pellucida

Cumulus oophorusCumulus oophorus

Membrana Membrana granulosagranulosa

Theca internaTheca interna

EMBRYO

SCLEROTOMENOTOCHORD

SURFACE ECTODERM

DERMATOME

MYOTOME

Dorsal root ganglia

Surface ectoderm

dermatome

myotome

notochord

sclerotome

Descending aorta

Surface ectoderm

Neural tube

Dorsal root ganglia

sclerotome

dermatome

myotome

amnion

Chorionic plate

Attached villi (anchoring)

Feta capillaries with fetal blood

Interstitial space containing maternal blood

syncitiotrophoblast

SKELETAL MUSCULAR SYSTEM

NERVOUS TISSUE

SPINAL CORD Fundamental: NervousParenchyma: NeuronsShape: stellateArrangement: random/irregularNucleus: Mononucleated, central

NEURONS

neurons

nucleus

cytoplasm

MUSCULAR TISSUE

SMOOTH MUSCLE

Fundamental: Muscular

Subtype: Smooth muscle

Shape: fusiform/spindle/cylindrical with tapered ends

Arrangement: Sheets or Layers

Nucleus: Mononucleated, central

Activity: Involuntary

Striations: Absent

Organ: Ileum

TUNICA MUSCULARIS

Outer longitudinal

Inner circular

TUNICA MUSCULARIS

Outer longitudinalInner circular

SMOOTH MUSCLE

SKELETAL MUSCLE

Fundamental: Muscular

Subtype: Skeletal muscle

Shape: cylindrical with blunt ends

Arrangement: bundles/fascicles

Nucleus: Multinucleated, periphery

Activity: voluntary

Striations: present

1 fascicle

perimysium

nuclei

sarcolemma

SKELETAL MUSCLE

Cardiac Muscle

Fundamental: Muscular

Subtype: Cardiac muscle

Shape: cylindrical with branching

Arrangement: bundles/fascicles

Nucleus: mono/binucleated, central

Activity: involuntary

Striations: present

nuclei

Cardiac Muscle

BOW!

I hope this presentation will ease your micro hsb 1st major practical exam… kaya natin to…!

Liezl M.D.☺