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Richmond Zent A. Fulache posted an update in the group
MT30-Histology Art AB 4 years ago Simple Squamous Epithelium
Function: Secretes lubricating substances, allow diffusion and filtration.
Location: Blood and lymphatic vessels, lining of the heart.
Simple Cuboidal Epithelium
Function: Allows secretion and absorption
Location: Secretory ducts of small glands and kidney tubules
Simple Columnar Epithelium
Function: Allows absorption and secretion of mucus
Location: Bronchi, uterine tubes, uterus, digestive tract, and bladder
Stratified Squamous Epithelium
Function: Protection
Location: Skin Epidermis and Vagina
Stratified Cuboidal Epithelium
Function: Secretion and Absorption
Location: Ducts of mammary glands, sweat glands, pancreas
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Function: Absorption and protection
Location: Large glandular ducts
Pseudostratified Columnar Epithelium
Function: Secretes mucus which is moved with cilia
Location: Trachea and most of upper respiratory tract
Transitional Epithelium
Function: Allow distension of urinary tract
Location: Urinary bladder, ureter
Function: Provides structural support for all tissues
Location: Tendons and ligaments, kidney, spleen
Elastic fibers
Function: Maintains the shape of the structure while allowing flex
Location: Ear, nose tip, tip of epiglottis
Reticular fibers
Function: A stroma that supports other cell types including WBC’s, macrophages
Location: Lymphoid organ, spleen, bone marrow
Loose Areolar Connective Tissue
Function: Wraps organs, plays important role in inflammatory reaction, phagocytosis, and holds tissue fluid
Dense Connective Tissue
Function: Attaches muscles to bones and vice-versa; attaches bones to bones; withstands great tensile stress when pulling from one direction
Location: Tendons and ligaments
Dense Irregular Connective Tissue
Function: Able to withstand tension exerted in many directions, provides structural strength
Location: Dermis of the skin, submucosa of digestive tract, fibrous capsules
types of connective tissue
Function: stores energy in the form of lipids
Location: Under the skin and of the surrounding organs
Bone Tissue
Function: Protection, storage, support; houses blood-forming tissue, serves as levers that act with muscle to enable movement
Blood
Function: Transport respiratory gases, wastes, nutrients, immune response, and blood clotting
Location: Contained within blood vessels
Mucous connective tissue
Function: Produces Wharton’s jelly and delicate collagen and reticular fibers
Location: Umbilical cord
types of conn
Description: Skeletal muscle is a specialized contractile tissue found in animals which functions to move an organism ’s body. Skeletal muscle is comprised from a series of bundles of muscle fibers, surrounded by protective membranes.
Location: Combined with connective tissue and neural tissue in skeletal muscle
Function: moves or stabilizes the position of skeleton; guards entrances and exits to respiratory, digestive, and urinary tracts; generates heat; protects internal organ
Cardiac muscle tissue
Description: Cardiac muscle tissue, or myocardium, is a specialized type of muscle tissue that forms the heart. This muscle tissue, which contracts and releases involuntarily, is responsible for keeping the heart pumping blood around the body.
Function: Circulates blood; maintains blood pressure
Location: Heart
connective tissue
Description: Long spindle-shaped cells, each with a single nucleus
Function: Propulsion of substances along internal passage ways
Location: Hollow organs
connective tissue2
The structure of a neuron is a cell body with nerve processes that transmit signal from one neuron to other. An electrically excitable cell that communicates with other cells via synapses.
Unipolar
These neurons are sensory neurons which help in transmission of impulses throughout CNS.
Multipolar
They are found in the brain and spinal cord (CNS) and also in the autonomic ganglia
Bipolar
Are mostly found in the sensory pathways for smell, taste, hearing, and sight
Pseudounipolar
The big players in transmitting the pulls, pressure, or touch
Anaxonic
These neurons are found in the brain and retina
Satellite Cells
Similar to functions of astrocytes small cells that surround the neurons in the sensory, sympathetic and parasympathetic ganglia, helping to regulate the external chemical environment
Schwann Cells
Similar in function to oligodendrocytes and microglial cells, providing myelination to axons in the RNS, also have phagocytosis activity.
neuron
Description: Epicardium – Outside layer of the heart
Myocardium – Middle layer
Endocardium – Inner layer
These layers work together to form major structure of the heart and allows it to function after endless hours of pumping.
Function: Epicardium – to protect the inner heart layers and assist in production of pericardial fluid.
Myocardium – Enables heart contractions
Endocardium – This layer lines the inner heart chambers, covers heart values, and is continuous with the endothelium of large blood vessels.
Four Chambers of the heart
Description: The heart has four chambers that work together to ensure the flow and passage of blood runs smoothly.
Function: The heart has four chambers:
The right atrium receives blood from the veins and pumps it to the right ventricle.
The right ventricle receives blood from the right atrium and pumps it to the lungs, where it is loaded with oxygen.
The left atrium receives oxygenated blood from the lungs and pumps it to the left ventricle.
The left ventricle (the strongest chamber) pumps oxygen-rich blood to the rest of the body. The left ventricle’s vigorous contractions create our blood pressure.
heart
Description: The wall of the GI tract from the esophagus to the anal canal has four layers from deep to superficial are the mucosa, submucosa, muscularis, and serosa
Function: Mucosa – absorptive and secretory layer
Submucosa – absorbs elements from mucosa through blood vessle
Muscularis – responsible for segmental contractions and peristalsis
Serosa – reduces friction from muscle movements
Wall of the stomach with rugae
Description: The mucosa and submucosa of the empty stomach have large longitudinally directed folds called rugae.
Function: Rugae enables the stomach to expand and allow more food.
Tooth
Description: Hard mineral-rich structure with are used to chew food
Location: To break down and chew food
intestine