Histology Flashcards

Flashcards for Histology Review

Histological techniques

A technique used in histology.

Rotatory microtome

A type of microtome used in histology

Epithelium

A tissue type that covers surfaces.

Microvilli

Cell membrane protrusions that increase surface area.

Zonula occludens

Also known as tight junctions.

Zonula adherens

Also known as adhering junctions.

Macula adherens

Also known as spot desmosomes

Desmosome

Cell structure involved in cell-cell adhesion.

Tonofilament

Filamentous structures in cells.

Plaque

A protein structure associated with desmosomes.

Central Clear Region

A clear region representing the thinnest area of biconcave discs of red blood corpuscles.

Rouleaux appearance

Arrangement of red blood cells that resembles a stack of coins.

Endothelium

Epithelial layer lining blood vessels.

Segmented nucleus

A type of white blood cell with a segmented nucleus.

Granules

Cellular structures that contain enzymes and other substances.

Specific granules

Granules that are specific to a cell type.

Bilobed nucleus

Nucleus with two lobes.

Specific granules

Large, basophilic granules that obscure the nucleus.

Lymphocyte

Small round cells with a large, dark nucleus and a narrow rim of cytoplasm.

Kidney shaped nucleus

A kidney-shaped nucleus is associated with this type of large cell.

Lysosomes

Organelle containing digestive enzymes.

Non-nucleated cytoplasmic fragments

Non-nucleated cytoplasmic fragments in the blood.

Cardiac muscle

A type of muscle tissue found in the heart.

Blood vessels

Vessels that carry blood.

Lymphatic system

Vessels of the lymphatic system.

Stratified sq. epith.

Epithelium with multiple layers of flattened cells.

Capsule

Outer covering of an organ or structure.

Goblet cells

Cells that secrete mucus

Ciliated columnar cells

Cells with cilia.

Basal cells

Stem cell

Respiratory Bronchioles

Portion of the respiratory system containing alveoli

Alveoli

Structures for gas exchange in the lungs.

Outer surface

Outermost layer of the oral cavity.

Orbicularis oris

Muscle of the lips.

Inner surface

Innermost layer of the oral cavity

Gastric gland

Glands found in the stomach.

Brunner's glands

Glands found in the duodenum.

Peyer's patches

Lymphoid nodules found in the small intestine.

Mucous

Glands that secrete mucus.

Serous

Glands that secrete a serous fluid.

islet of Langerhans

Cell clusters in the pancreas

renal corpuscles

Structures in the kidney that filter blood.

Glomeruli

Capillary tuft within the renal corpuscle.

Podocytes

Cells that surround the glomerular capillaries

Urinary space

The space on Bowman's capsule where filtrate is collected

Bladder

An expandable muscular organ that stores urine.

Endocrine system

A system of glands that secrete hormones.

Pars Tuberalis

Portion of the Pituitary Gland.

Infundibulum

Portion of the Pituitary Gland

Pars Nervosa

Portion of the Pituitary Gland

Pars Distalis

Portion of the Pituitary Gland

Pars Intermedia

Portion of the Pituitary Gland

Cortex

The outer layer of an organ or structure.

Zona glomerulosa (ZG)

Layer of the adrenal cortex.

Medulla

Inner layer of an organ or a structure.

Zona fasciculata (ZF)

Layer of the adrenal cortex.

Zona reticularis (ZR)

Layer of the adrenal cortex.