Tissue Bio Lab

Hey Guys!

Hope your first quiz went well and that you're ready to step into the world of EPITHELIUM! Epithelium can seem a little overwhelming at first, but remember - take advantage of the tools you have! Use Googleimages/university links to the right to look at as many different pictures as you can of the structures we discuss in class. Come to open lab, ask questions, practice!

Here are the terms you will need to know for the quiz next week - good luck!

Epithelium Key Terms

Key: Know the anatomical and histological names (including modifications) for the following bolded structures; assume that you will be required to find the structures indicated by * on your own slides.

***This list is not guaranteed to be exhaustive, and only includes terms from this unit. While we will not focus on quiz information from previous weeks, knowledge of previous material may be useful***

Focus on epithelium histology, but keep in mind all of the following terms. Review epithelial modifications as outlined in your lab manual.

Nomenclature

Be able to differentiate epithelium based on the following criteria

·       Quantity of layers (simple, pseudostratified, stratified)

·       Shape of the cell (squamous, cuboidal, columnar, transitional)

Be able to recognize and differentiate among the following free surface modifications and know where you would find them.

·       Microvilli

·       Stereocilia

·       Cilia

·       Specialized Secreted Products (keratin, enamel)

·       Glycocalyx (not included when naming cells)

Renal Epithelium

Cortex

·       Proximal convoluted tubule (PCT)*

·       Distal convoluted tubule (DCT)*

·       Glomerulus*

·       Parietal layer of Bowman’s capsule*

·       Visceral layer of Bowman’s capsule*

·       Macula densa*

Medulla

·       Collecting duct*

·       Thin loop of Henle*

·       Peritubular capillaries*

·       Thick loop of Henle*

Endothelium

Vein and Artery

·       Endothelium*

·       Tunica intima

·       Tunica media

·       Tunica adventitia

Respiratory Tract

Trachea

·       Tracheal Epithelium*

·       Hyaline cartilage (c-rings)

·       Subtracheal gland

Bronchus

·       Bronchus epithelium*

·       Hyaline cartilage (cartilaginous plates)

Bronchiole and Terminal Bronchiole

·       Bronchiole epithelium*

·       Terminal bronchiole epithelium*

·       Respiratory bronchiole

Lung

·       Alveoli*

Skin

Know the following layers and something unique to each layer

·       Skin*

·       Stratum corneum*

·       Stratum lucidum*

·       Stratum granulosum*

·       Stratum spinosum*

·       Tonofibrils*

·       Stratum germinatimum (basale)*

·       Dermal Papillae*

Cornea

·       Outer epithelial layer

·       Connective tissue layer

·       Inner epithelial layer

Cochlea

·       Vestibular membrane*

·       Tectorial membrane*

·       Basilar membrane*

·       Hair cells

·       Scala tympani

·       Scala media (cochlear duct)

·       Scala vestibuli

GI Tract

Esophagus

·       Esophageal epithelium*

·       Subesophageal glands

·       Muscularis externa layers

Stomach

·       Stomach epithelium*

·       Parietal cells

·       Chief cells

Small Intestine

·       Mucosa

·       Submucosa

·       Muscularis externa

·       Small intestine epithelium*

·       Goblet cells

Appendix

·       Appendix epithelium*

·       Lymph Nodule

·       Goblet cell

·       Trash in the lumen

Large Intestine

·       Muscularis externa

·       Submucosa

·       Mucosa

·       Large intestine epithelium*

·       Goblet cells

Female Reproductive Tract

Oviduct

·       Lamina propria

·       Oviduct epithelium*

Uterus

·       Uterus epithelium*

·       Stratum functionalis

·       Stratum basalis

·       Myometrium

·       Uterine gland

Vagina

·       Vaginal epithelium*

·       Lamina propria

Male Reproductive Tract

Epididymis

·       Epididymis epithelium*

·       Sperm (within lumen)

·       Stereocilia*

Vas Deferens

·       Vas deferens epithelium*

·       Muscularis externa

Urinary

Ureter

·       Ureter epithelium*

·       Submucosa

·       Muscularis externa

Urethra

·       Urethra epithelium*