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Anatomy & Physiology Lec & Lab : Lab Exam 1 Histology Part 1

Anatomy and Physiology30 CardsCreated 3 months ago

This deck covers key concepts in histology, focusing on tissue types, properties, and functions. It includes definitions, classifications, and locations of various epithelial tissues, as well as details about nervous and connective tissues.

Histology

The study of tissue structure and function
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Key Terms

Term
Definition
Histology
The study of tissue structure and function
4 Tissue types
Epithelial; Connective; Muscle; Nerve
2 primary components of tissue
Cells of similar function; Non-living “Extracellular-Matrix”
Epithelial basic properties
Highly cellular (Composed almost entirely of cells); Little extracellular matrix; Avascular; Innervated; Regenerative
Regenerative
Easily replaces lost cells by cell division
Avascular
Lack of blood cells

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TermDefinition
Histology
The study of tissue structure and function
4 Tissue types
Epithelial; Connective; Muscle; Nerve
2 primary components of tissue
Cells of similar function; Non-living “Extracellular-Matrix”
Epithelial basic properties
Highly cellular (Composed almost entirely of cells); Little extracellular matrix; Avascular; Innervated; Regenerative
Regenerative
Easily replaces lost cells by cell division
Avascular
Lack of blood cells
Innervated
supplied by nerve fibers
Complexity Classification of Epithelial
Simple or Stratified
Shape Classification of Epithelial
Squamous; Cuboidal; Culumnar
Epithelial Important functions
Lines the body cavities and structures (Protection & Lubrication); Secretion of substances (Sweat); Absorption of substances (Intestines, kidneys)
What is Simple Squamous epithelial
single layer of flattened cells with a disc shaped nuclei
Functions of simple squamous epithelial
diffusion and filtration; provide a slick, friction-reducing lining in lymphatic and cardiovascular systems
location of simple squamous epithelial
Lining of the heart; Blood vessels; Lining of ventral body cavities; Air sacs of lungs
What is the simple cuboidal epithelial
Single layer of cube-like cells with large, circular central nuclei
Function of simple cuboidal epithelial
Absorption and Secretion
Location of simple cuboidal epithelial
Ducts & secretory glands; Ovary surface
What is simple culumnar epithelial
Single layer of tall cells with an oval nuclei; many contain cilia
Function of simple culumnar epithelial
secretion and absorption
Location of simple culumnar epithelial
Most of the digestive tract; Gallbladder; Some regions of the uterus
What is pseudostratified columnar epithelial
Single layer of cells of differing heights
What is stratified squamous epithelial
Thick membrane composed of several layers of cells, (Basal cells are cuboidal or culumnar)
Function of stratified squamous epithelial
Protection of underlying tissues in areas subject to abrasion
Where is stratifies squamous epithelial located
Linings of esophagus, mouth, and vagina; Epidermis of the skin
stratified cuboidal and culumnar epithelial
very rare in the body, typically 2 layers thick
What cells make up Nervous tissue
Neurons
Neurons
Neurons are branching cells
Nervous tissue function
Transmits electrical signals from sensory receptors to effectors
Location of Nervous Tissue
Brain; Spinal cord; Nerves
Types of Connective tissue
Loose Connective | Dense Connective
Types of Loose connective tissue
Aerolar | Adipose