Epithelium Flashcards
Simple Squamos Epithelium
Single layer of flattened cells with flattened nucleus
Lung air sacs
Exchange of gases by diffusion
Simple Cuboidal Epithelium
Single layer of cells that are equal in height and width with a spherical nucleus
Kidney Tubules
Secretion and Absorption
Simple Columnar Epithelium
Single layer of cells that are higher than they are wide with a vertically elongated nucleus
Inner lining of the digestive tract
Secretion and Absorption
Stratified Squamos Epithelium
Stratified many layers epithelium with flattened squamos cells can either be keratinized or not keratinized
Transitional Epithelium
Stratified epithelium with top cells transitioning from flat squamos like cells when the tissue is stretched to a cuboidal like dome cell when the tissue is relaxed
Ions
Charge atoms or group of atoms that are also called electrolytes because they have the ability to transfer electric current
Areolar Loose Connective Tissue
Abundant matrix cells and all fiber types between organs fills in spaces anchors tissue
Adipose Tissue
Large fat droplet takes up most of cell thin cell membrane the nucleus is barely visible
Beneath skin hypodermis around kidneys and in breasts
Storage of energy insulates and cushions
Reticular Connective Tissue
Contains dark spongy reticular fibers
Lymph organs such as lymph nodes and spleen
Forms the internal spongy framework
Dense Regular Connective Tissue
Extracellular tough collagen fibers
Tendons and Ligaments
Firm attachment of muscle to bone and bone to bone to resist stress in one direction
Blood
Liquid matrix plasma with many red and white blood cells and platelets
In blood vessels and heart
Transports oxygen carbon dioxide nutrients and wastes fight infection
Cartilage
Gel like matrix with cartilage cells and fibers
Nose ear trachea
Support protection with some flexibility
Bone
Hard matrix with osteocytes
Skeleton
Support and protection with no flexibility
Muscle Tissue
Wide elongated cells as fibers
Skeletal muscles heart wall of organs
Movement
Nervous Tissue
Contains huge neuron cells
Nerves throughout the body
Impulses for rapid communication and control