Practical excercise N.4

EPITHELIAL TISSUE 2

Glandular epithelia

1st part

Institute of Histology and Embryology

Faculty of Medicine

Comenius University Bratislava

SPECIMENS: 1. Exocrine glandular epithelia

Goblet cells – small intestine (PAS)

Simple tubular gland – large intestine (HE)

Simple branched alveolar gland, holocrine secretion –

labia minora (HE)

Compound tubulo-alveolar gland, apocrine and

merocrine secretion – mammary gland (HE)

Compound alveolar gland, merocrine secretion – parotid

gland (HE)

Compound tubulo-alveolar gland – submandibular and

sublingual glands (Azan)

Specimen:

Goblet cells -

small intestine

(PAS)

Goblet cells – small intestine (PAS)

Specimen:

Simple tubular gland, large

intestine (HE)

tunica

mucosa

tunica

submucosa

muscularis

Simple tubular gland,

large intestine (HE)

Tubular glands

Simple tubular gland, large intestine (HE)

Glands in cross section Glands in longitudinal section

Simple tubular gland,

large intestine (HE)

Simple tubular gland, large intestine (HE)

Simple tubular gland, large intestine (HE)

cross section

of the tubulus

Simple tubular gland, large intestine (HE)

Specimen:

Simple branched alveolar

gland, holocrine secretion –

sebaceous gland in

labia minora

(HE)

duct

Secretory part

Sebaceous gland

(HE)

Secretory part

Cell with nucleus

Cell debris

Specimen:

Compound alveolar gland,

merocrine secretion – parotid

gland (HE)

Parotid gland (HE)

intralobular ducts secretory alveolus

ducts

Secretory alveoli

alveolus

duct

duct

Secretory alveoli

Interlobular duct