Cerbral cortex

Artery.1

Blood

ELASTIC CARTILAGE

• Chondrocytes and elastic fibres are present
• Chondrocytes are found in singles or in twos with a laquna.
• Example: Found in external auditory meatus, external ear, epiglotis.

HYALINE CARRTILAGE

• Chondrocytes are present
• Homogeneous matrix
• Matrix takes a basophillic stain & appears homogeneous

THIN SKIN

• Epidermis & dermis with hair follicles.

• Sweat gland & arector pili muscles.

THICK SKIN

• Only sweat gland is present.
• 
  Thickening of stratified squamous epithelium.

SEROUS SALIVARY GLAND

• Darkly stained serous acini with plenty of duct.
• Sub centrally placed nucleus.
• Eg: Parotid Gland

MIXED SALIVARY GLAND

• More serous and less mucous acini.
• Serous demilunes.
• Arranged in lobes & lobules.
• eg: Submandibular salivary gland

MUCOUS SALIVARY GLAND

• Lightly stained mucus acini with few ducts.

• Peripherally placed nucleus.
• Eg: Sub lingual salivary gland.

OESOPHAGUS

• Form layers of gastro-intestinal tract.
• Oesophageal glands in submucosa.

PANCREAS

• Islets of langherhans.

• It is both exocrine & endocrine gland.       

TRACHEA

• Pseudostratified squamous columnar epithelium.

• 'C' shaped hyaline cartilage.

LUNG

• Sections of alveoli with squamous epithelium.  

• Intra-pulmonary bronchi & bronchioles. 

TONGUE

• Lingual papilla and skeletal muscle in three direction. 
• Four kinds of papilla: Filliform, Fungiform, Foliate & Circumvalate.
•  First fig: Fungiform papilla. 
• Second fig: Filliform papilla.