Microscopic HSB

Compiled by: jessica dawn☺

LYMPHATIC SYSTEM

Fundamental: Connective TissueSubtype: Lymphatic Tissue

Specific Subtype: Nodular/Loose/Dense Lymphatic Tissue

THYMUS GLAND- primary lymphoid organ

capsule (LCT)

trabeculae

Cortex (DLT)

LLT- Loose Lymphatic Tissue

DLT- Dense Lymphatic Tissue

CORTEX- contains thymocytes

thymocytes

Medulla (LLT)

Thymic corpuscles/ Hassal’s bodies

Medulla (LLT)

Thymic corpuscle

THYMIC CORPUSCLES/HASSAL’S BODIES

LYMPH NODE

Capsule- DICT

Cortex-

Made up of NLT, LLT

Lymphatic nodule

Subscapular sinus

** NLT- nodular lymphatic tissue DICT- dense irreg. Connective Tissue GC-Germinal Center of Fleming/Secondary nodule

GC

CORONA

Cortical sinuses

Lymphatic nodules

**Incomplete ung illustration ko sa lymph node. Please refer to your atlas (Wheater) on pages 206-213 with regards to the following: paracortical zone, medulla, hilum, medullary cord, medullary sinus

GC

CORONA

PALATINE TONSIL

SSNKETONSILLAR CRYPTS

**SSNKE- stratified squamous non-keratinized epithelium

DLT

NLT

GC

Lymphatic nodule

Tonsillar crypt

GC

Lymphatic nodule

CAPSULE (DICT)

SPLEEN- largest lymphoid organ

Capsule-fibromuscular

White pulp (NLT)

sinuses

Central arteriole

GC

GC

Lymphatic nodules

Splenic cords of Billroth

CORONA

RED PULP (LLT)

GC

CORONA

CENTRAL ARTERIOLE

PALS

CENTRAL ARTERIOLE

APPENDIX

LYMPHATIC NODULES

ILEUM- PEYER’S PATCHES

GC

CORONA

DEVELOPMENT OF THE RESPIRATORY SYSTEM

PHARYNX

LARYNX

ARYTENOID SWELLINGS

5TH PHARYNGEAL POUCH

ESOPHAGUS

TRACHEA

RIGHT DORSAL AORTA

LEFT DORSAL AORTA

LUNG BUD

ESOPHAGUS

BRONCHUS

BRONCHUS

ESOPHAGUS

LUNG BUD

RESPIRATORY SYSTEM- CONDUCTING PORTION

OLFACTORY MUCOSArespiratory portion

RESPIRATORY EPITHELIUM (PSCCE W/ GC)

VESTIBULE VESTIBULE(SSNKE)

SEROUS GLAND

MUCOSA

Lamina propia (DICT)

LARYNXtrue vocal cords/folds-LOWER FOLD

SSNKE

VOCALIS MUSCLE

SSNKE

False vocal cords/vestibular folds

PSCCE W/ GC

Lamina propia-LLT

Laryngeal glands

PSCCE W/ GC

LAMINA PROPIA-LLT

Laryngeal glands

TRACHEA

Mucosa (PSCCE W/ GC)

Lamina propia- LLT

submucosa

Tunica adventitia

Trachealis muscle

fibrocartilageTA

LINING EPITHELIUM- PSCCE W/GC

TRACHEAL GLANDS

TRACHEAL GLANDS

RESPIRATORY PORTION

LUNGSINTRAPULMONARY ARTERY/ TERTIARY BRONCHUS

LUMEN

LINING EPITHELIUM (PSCCE W/ GC)

MUCOSA

TUNICA ADVENTITIA

ISLAND OF CARTILAGE

SUBMUCOSA

SMOOTH MUSCLE

**HPO VIEW

BRONCHIOLE- PSCCE W/ GC BUT W/O CARTILAGE

TERMINAL BRONCHIOLE- SIMPLE CILIATED COLUMNAR EPITHELIUM

RESPIRATORY BRONCHIOLE- SIMPLE CUBOIDAL EPITHELIUM-non-ciliated

(1) ALVEOLUS, (2) ALVEOLAR SAC, (3) ALVEOLAR DUCT

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