Anatomy/Physiology Lab 3 Histology Flashcards

A group of cells that work together to perform a function

2 or more tissues working together to perform a function

2 or more organ working together to perform a function

Tightly packed cells that cover a surface or line a cavity....for protection from injury, foreign pathogens, micro organisms, and water loss. Some secrete mucus that acts like fly paper to trap pathogens. Innervated, but avascular.

Shape: Flat, plate-like
Location: Skin, Mouth lining, and Aveoli (lungs)
Function: Easy diffusion of materials due to flatness through them. Easily sloughed off and replaced.

Shape: Cube
Location: Kidney
Function: Tightly bonded together to protect keep urine in urethra.

Shape: Column
Location: Digestive Tract and Female Reproductive Tract
Function: Absorption & Secretion. Often accompanied by Goblet Cells (mucus) and Cilia (movement). They assist in movement of food through intestines, and movement of oocyte through fallopian tubes to uterus.

Unicellular Exocrine Gland Cells that secrete mucus usually found in Columnar Epithelial Cells

Hair-like structures that gently move material in Epithelial tissues.

Shape: changes from cube (empty) to squamous (full)
Location: Bladder, ex
Function: stretchable cells that allow for expansion, empty bladder to full bladder, ex.

Single layer of Epithelial cells

2 or more layers of Epithelial cells
Location: Skin, epidermis for example

Single layered Columnar Cells, but appear to be statified. Nuclei are offset from each other and look like alternating wine bottles or bowling pins. (Lungs ex.)

Function: to contract.
Shape: long, thin, and connected on each end.
Types: Skeletal, Cardiac, Smooth

Muscles under conscious control. Super long cells. They are multinucleate and contain striations