-
Daphne Sumodlayon posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoCONNECTIVE TISSUE – It is the tissue that underlies and support other tissue types. Connective tissue supports and protects other tissues and binds the cells and the o… -
Daphne Sumodlayon posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoEPITHELIAL TISSUE – This kind of tissue forms sheets of cells that cover the surface of our body (epithelium). Epithelial tissue lines on the surface of body cavities. Its functions include glandular secretion, creates protective boundaries, and involved in the diffusion of ions and molecules. Epithelial tissue has aggregated polyhedral cells w…-
Simple Squamous
Location: kidney glomeruli, air sacs of lungs, the lining of the heart and
blood vessels, and lining of the ventral cavity…-
STRATIFIED SQUAMOUS
Location: Non-keratinized: esophagus, mouth, vagina
Keratinized epidermis of the skin
Function: protects underlying tissue in areas…-
PSEUDOSTRATIFIED COLUMNAR
Location: Non-ciliated: large glands and parts of the male urethra
Ciliated: trachea, the upper part of the respiratory system…
-
-
-
-
Richmond Zent A. Fulache posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoSimple 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…-
Stratified columnar epithelium
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
-
Collagenous fiber
Function: Provides structural support for all tissues
Location: Tendons and ligaments, kidney, spleenElastic fibers
Function: Maintains the shape of the structure while allowing flex
Location: Ear, nose tip, tip of epiglottisReticular fibers
Function: A stroma that supports other cell types including WBC’s,… -
Adipose tissue
Function: stores energy in the form of lipids
Location: Under the skin and of the surrounding organsBone Tissue
Function: Protection, storage, support; houses blood-forming tissue, serves as levers that act with muscle to enable movementBlood
Function: Transport respiratory gases, wastes, nutrients, immune response, and blood… -
Skeletal muscle tissue
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: m… -
Smooth Muscle Tissue
Description: Long spindle-shaped cells, each with a single nucleus
Function: Propulsion of substances along internal passage ways
Location: Hollow organs -
Structure of neuron
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… -
Three layers of the heart
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… -
Four layers of the GI tract
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…
-
-
Julia Joie Capuyan posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoThe digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liver, pancreas, and gallbladder. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. Please see comments for more inf…-
1. Tooth
Description: The teeth are hard, white structures of the mouth. Dental crowns are tooth-shaped “caps” that can be placed over your tooth. The neck is the…-
2. Four layers of the GI tract
Description:
Mucosa- innermost layer of GI tract; made up of 3 layers (epithelium, lamina propia, and muscularis mucosae)
Submucosa- the…-
3. Wall of the stomach with rugae
Description:
The outer layer of the stomach wall is smooth, continuous with parietal peritoneum. The inner wall is thrown into folds…
-
-
-
-
Julia Joie Capuyan posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoThe integumentary system is the largest organ of the body that forms a physical barrier between the external environment and the internal environment that it serves to protect and maintain. The integumentary system includes the epidermis, dermis, hypodermis, associated glands, hair, and nails. Please see comments for more…-
1. Structure of five layers of the skin
Description:
STRATUM CORNEUM- Most superficial layer; 20-30 layers of dead, flattened, anucleate, keratin-filled
keratinocytes;…-
2. Structure of the nail
Description:
NAIL BODY- the visible attached portion
FREE EDGE- the portion of the nail that grows out away from the body
NAIL ROOT- the part…
-
-
-
Julia Joie Capuyan posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoThe circulatory system is made up of blood vessels that carry blood away from and towards the heart. Please see comments for more information-
1. Four chambers of the heart
Description:
RIGHT ATRIUM
▪ Forms the right border of the heart and receives blood from three veins:
➢ the superior vena cava
➢ infer…-
2. Structure of three layers of the heart
Description:
EPICARDIUM- outermost layer of the heart; the visceral layer of serious pericardium; comprised of mesothelial…
-
-
-
Julia Joie Capuyan posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoNervous tissue is found in the brain, spinal cord, and nerves. It is responsible for coordinating and controlling many body activities. It stimulates muscle contraction, creates an awareness of the environment, and plays a major role in emotions, memory, and reasoning. Please see comments for more…-
1. Structure of a neuron
Description: The neuron consists of a cell body, dendrites, and an axon. Information flows from the dendrites to the cell body, and then on…-
2. Five types of neurons
* Unipolar – usually found in invertebrate
species
– has a single axon
-sensory neurons; supply the branching dendrites for incoming signals a…-
3. Two types of neuroglia in PNS
* Schwann Cells – counterpart of the
oligodentrocytes
– help in making myelin sheath
– important for Phagocytosis
* Satellite Cells – analogous to the Astrocytes in
the CNS
– maintain a stable chemical environment in the
nucleus
-
-
-
-
Julia Joie Capuyan posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoMuscle tissue is composed of cells that have the special ability to shorten or contract in order to produce movement of the body parts. The tissue is highly cellular and is well supplied with blood vessels. Please see comments for more information-
1. Skeletal Muscle Tissue
DESCRIPTION: Long, cylindrical, multinucleate
cells; obvious striations
FUNCTION: Voluntary movement; locomotion;
manipulation of the environment; facial
expressions; voluntary control
LOCATION: In skeletal muscles attached to bones
or occasionally to skin
-
2. Cardiac Muscle Tissue
DESCRIPTION: Branching; striated; generally
uninucleate cells that interdigitate at specialized
junctions (intercalated discs)
FUNCTION: As it contracts, it propels blood into the
circulation; involuntary control
LOCATION: The walls of the heart-
3. SMOOTH MUSCLE tissues
DESCRIPTION: Spindle-shaped cells with central
nuclei; cells arranged closely to form sheets; no
striations
FUNCTION: Propels substances or objects
(foodstuff, urine, a baby) along internal
passageways; involuntary
control
LOCATION: Mostly in the walls of hollow organs
-
-
-
-
Julia Joie Capuyan posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoConnective tissue is the tissue that connects or separates, and supports all the other types of tissues in the body. Please see comments for more information.-
1. Collagen fiber
Location: skin, tendon, ligaments, bone, and cartilage
Function: support body tissues, major component of the extracellular matrix that support cells,…-
2. Loose (Areolar) Connective Tissue
Description: Gel-like matrix with all three
fiber types; cell include
fibroblasts, phagocytes,
some WBC, and others
Function: Wraps…-
3. DENSE REGULAR CONNECTIVE TISSUE
Function: This arrangement allows the fibers to have a good resistance to forces pulling along a single axis, but also gives some…-
4. Dense Irregular Connective Tissue
Location: The dense irregular connective tissues are found in the lower layers of the skin (dermis) and in the protective white layer of the eyeball.
Function: provides strength, making the skin resistant to tearing by stretching forces from different directions.-
5. Adipose tissue
Location: Adipose tissue is commonly known as body fat. It is found all over the body. It can be found under the skin (subcutaneous fat), packed around…-
6. Bone
Description Hard, calcified matric
containing many collagen
fibers; osteocytes lie in
lacunae. Very
well-vascularized
Function Bone supports and…-
7. Blood
Description Is the specialized connective
tissue in the circulatory
system that transports blood
cells and dissolved
substances throughout the
blood via the…-
8. Mucous Connective Tissue
Location: Umbilical cord
Function: supports and cushions large blood vessels
-
-
-
-
-
-
-
-
-
Julia Joie Capuyan posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoEpithelial Tissues. Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands. They perform a variety of functions that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.Please see…
-
Simple Squamous Epithelium
Location: lining of heart and blood vessels; lining of ventral body cavity;
Kidney glomeruli; air sacs of lungs
Function: Allows passage of materials by diffusion and filtration in sites where protection is not important; may
secrete lubricating substance-
Simple Cuboidal Epithelium
Location: Kidney tubules, ducts of small glands, ovary surface
Function: secretion and absorption-
Simple Columnar Epithelium
Location: ciliated variety lines small bronchi and uretic tubes. Nonciliated variety lines most of the digestive tract and gallbladder
Function: absorption; secretion of mucus, enzymes, and other substances; ciliated type propels mucus by ciliary action-
Stratified Squamous Epithelium
Location: keratinized: epidermis of the skin, a dry membrane. Nonkeratinized: moist linings of the esophagus, mouth, and vagina
Function: protects underlying tissues in areas subjected to abrasion-
Stratified Cuboidal Epithelium
Location: sweat glands, mammary glands, circumanal glands, and salivary glands
Function: This type of epithelium lines collecting ducts and tubes and is involved in absorbing or secreting material into the ducts or tubes-
Stratified Columnar
Location: conjuctiva, pharynx anus, and male urethra. It also occurs in embryo.
Function: Protects against physical and chemical near and tear-
Pseudostratified Columnar
Location: ciliated: trachea, most of the upper respiratory tract. Nonciliated: ducts of large glands, parts of male urethra
Function: secretes substances, particularly of mucus, propulsion of mucus by ciliary action-
Transitional Epithelium
Location: lines the ureters, urinary bladder, and part of the urethra
Function: stretches readily and permits distension of urinary organ by stored urine
-
-
-
-
-
-
-
-
-
Franzgayle T. Husain posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoThe epidermis, dermis, hypodermis, associated glands, hair, and nails comprise the integumentary system. This system, in addition to its barrier function, performs numerous intricate functions such as body temperature regulation, cell fluid maintenance, Vitamin D synthesis, and stimuli…-
NAIL
Description:
Hard plates of keratin on the dorsal surface of each distal phalanxFunction:
A healthy fingernail has the function of protecting the distal phalanx,…-
HAIR
Description:
Are elongated keratinized structures that form within epidermal invaginations, the hair follicles. The color, size, shape, and texture of hairs vary…
-
-
-
Franzgayle T. Husain posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoThe Gastro intestinal tract contains four layered arrangement of tissues namely mucosa, submucosa, mascularis and serosa.-
TOOTH
Description – hard, resistant structure in or around the mouth areas. It is used for catching and masticating food.
Function – Its function includes breaking down food, enabling people to pronounce words and shape the food.-
PARTS
•Enamel – is the hardest component of the human body
•Odontoblast – tall polarized cells derived from the cranial neural crest that line the tooth’s pulp cavity
•Ameloblast – contains numerous secretory granules with the proteins of the enamel matrix
-
-
-
Franzgayle T. Husain posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoThe heart wall is consist of connective tissue, endothelium, and cardiac muscle. It allows the heart to contract and the heartbeat to be synchronized. It has three layers namely epicardium, myocardium, and endocardium.-
•Epicardium – also known as the visceral layer of the serous pericardium. . It is composed of mesothelium and delicate connective tissue that imparts a smooth, sli…
-
-
Franzgayle T. Husain posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoNeurons are branching cells; cell processes that may be quiet long extend from the nucleus-containing cell body; also contributing to nervous tissue are nonexcitable supporting cells
FUNCTION:
Transmit electrical signals from sensory receptors and to effectors (muscle and glands) that control their activity
LOCATION:
Brain, spinal cord, and…-
TYPES OF NEURON
✓ Unipolar (pseudounipolar) – single, short process
✓ Multipolar – three or more processes
✓ Pyramidal – neurons with a pyramidal shaped cell body (soma) and two distinct dendritic trees
✓ Bipolar – two processes (axon and dendrite)
✓ Purkinje – have multiple dendrites that fan out from the cell body
-
-
Franzgayle T. Husain posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoMuscle tissue is a highly cellular and vascular tissue specialized for contraction via the interaction of myofilaments (between thin and thick filaments).-
•Skeletal muscle tissue
Description – Long, cylindrical, multinucleate cells; obvious striations o Consist flexible muscle fibers that is important for our movement. T…
-
-
Franzgayle T. Husain posted an update in the group
MT30-Histology Art AB 3 years, 11 months ago• Simple epithelia – consist of a single layer of cells where each cell connects to the basement membrane.
• Stratified epithelia – compromise more than one layer of cells. The cells on the basal surface are connected to the basement membrane. Whereas the partitions on the apical surface border an open space.
• Pseudostratified epithelia – has…-
• Bone
It supports, protects, and provides for the muscles to act on . It also stores calcium and other minerals.
• Dense regular connective tissue
It is found in the…
-
-
Franzgayle T. Husain posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoEpithelial tissues can be found throughout the body. It may be found in the skin, the stomach lining, and the intestine, kidneys, glands, and other bodily parts. It also has polyhedral cells that have aggregated and a minor quantity of extracellular matrix. The epithelial tissue is composed of different types namely simple squamous, simple…-
TYPES OF EPITHELIAL TISSUE
• Simple epithelia – consist of a single layer of cells where each cell connects to the basement membrane.
• Stratified epithelia – com…
-
-
Fiona Jane posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoWall of the Stomach with rugae (Digestive System)Location: Gastric folds(rugae) are coiled sections with tissue that exist in the mucosal and submucosal layers of the…
-
Fiona Jane posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoFive Layers of Skin (Integumentary System)Location: The epidermis, the outermost layer of skin, the dermis and the deeper subcutaneous tissue.
Function:
Stratum… -
Fiona Jane posted an update in the group
MT30-Histology Art AB 3 years, 11 months agoHeart (Circulatory System)Location: The heart is located in front of a person’s chest. It sits slightly behind and to the left of the sternum.
Function: the muscle at…
- Load More
Recently Active Members
Location: bone, cartilage, tendons, and ligaments
Function: essential for tensile strength, transmit forces, store an dissipate energy
ELASTIC…
[Read more]
Location: epithelia, capillaries, package organs
Function: wraps and cushion organs, engulf bacteria, an important role in inflammation, conveys tissue fluid…
[Read more]
Location: under skin, kidneys, eyeballs, abdomen, and breasts
Function: provides reserve food for fuel, insulates against heat loss, and supports and…
[Read more]