Tissues Flashcards
Collection of similar cells
Tissue
Microscopic study of tissues.
Histology
4 types of tissues
Epithelial Tissue
Connective Tissue
Muscle Tissue
Nervous Tissue
What is ECM?
EXTRACELLULAR MATRIX (ECM)
Filler in ECM
Reticular
Single layer
Simple
3 classes of fibers
Collagen
Elastin
Reticular
These are the characteristics of ___________
- Cells arranged in continuous sheet (single or multiple layers)
- Does not have ECM
- Protective covering external and internal surface of the body
Epithelial Tissue
This determines the type of epithelium
Layer and Shape
False stratified
Pseudostratified
Multiple layer
Stratified
It is a shape that can be compare to scales and it is wider than taller, usually found in surface
Squamous
Cube type, they are taller as they are wide
Cuboidal
Column type, taller than they are wide
Columnar
No definite shape and is flexible
Transitional Epithelium
What are the functions of Epithelium?
Protection
Secretion
Absorption
Sensory Reception
Excretion & Filtration
These are the ____________ of Epithelium
- Cover surfaces of body
- Consist entirely of cells
- Has free or apical surface
- Has lateral surface
- Has basal surface
- Does not contain blood vessel
Characteristics
Single layer of flat thin cells and found where diffusion of filtration occurs
Simple Squamous
Deepest part of the body and mostly found in mouth, esophagus, rectum, and vagina
Non-Keratinized Stratified Squamous Epithelium
Found in skin, the outermost layer and contains protein KERATIN
Keratinized Stratified Squamous Epithelium
Secretory structure
Glands
Most abundant and makes up every part of the organ and have ECM
Connective Tissue
Do not have ducts (passage way)
Endocrine
Outside glands
Exocrine
Functions of Connective Tissue
Support
Binding/Connection
Protection
Transport
Storage
Immunity
Consist of LIPOCYTES, where excess fat is stored and expand in size until the fat is used for fuel
Adipose Tissue
Loose Connective tissue consist of ECM and found in __________________
Glands, Muscles, and Nerves
3 Types of Connective tissue
Loose
Special
Dense
Fillers, provide a superstructure for lymphatic and hemopoietic tissues and;
Found within:
Lymph nodes
Spleen
Bone marrow
Reticular Tissue
Consist of densely packed fibers produced by fibroblast.
Dense Connective Tissue
__________ - one direction
Irregular - ________________
Regular| several directions
Protein fibers in ECM are oriented predominantly in one direction and found in vocal folds, between vertebrae and dorsal of neck
Dense Regular Elastic
Can stretch and recoil in several directions and found in elastic arteries
Dense Irregular Elastic
Has abundant collagen fibers
Dense Regular Collagenous
Tensile strength capable of withstanding stretching in all directions
Dense Irregular Collagenous
Cartilage is composed of _____________ and located in spaces called LACUNAE
Chondrocytes
Most abundant cartilage and forms embryonic skeleton
Hyaline Cartilage
More collagen than hyaline and connects structures subjected to great pressure
Fibrocartilage
Contains elastic and collagen and it provides rigidity with even more flexibility than hyaline
Elastic Cartilage
Tissue that found in bone marrow
Hemopoietic Tissue
The main type of tissue that contracts or shorten and produces movement and is the highly cellular and well supplied with blood vessels
Muscle Tissue
Constitutes about 40% of a person’s body weight and under VOLUNTARY CONTROL
Skeletal Muscle
Characteristics of __________
- Forms wall of the hollow organs
- Movement of food in the digestive tract and emptying urinary bladder
Smooth Muscle
Muscle of the heart and is responsible for pumping blood and this is INVOLUNTARY CONTROL
Cardiac Muscle
Controls and coordination of body actions
Nervous Tissue
Impulse conduction
Neurons
DENDRITES — __________
AXON — transfer or sends
receives
Thin sheets or layers of tissue that cover a structure or lines a cavity.
Tissue membrane
Consist of kinds of epithelium resting on a thick layer of connective tissue
Mucous membrane
Consist of simple squamous epithelium resting on a loose connective tissue and lines pleural, peritoneal, and pericardial cavities
Serous membrane
Consist of modified connective tissue cells and lines freely on movable joints
Synovial fluid
