Chapter 3 Flashcards
Functions of epithelia tissue
Provide physical protection,
control permeability, provide sensation,
produce specialized secretions
Epithelia specializations
- Lateral cell surfaces
- Maintain close cell-to-cell contact and form covering sheets
- Epithelium structurally and functionally polarized to increase efficiency of absorption and transport
Simple squamous epithelium
Location:heart, blood vessels
Function: reduces friction & absorbs and secrets materials
Stratified squamous epithelium
Location: skin surface, lining of mouth, esophagus anis and virgins
Function: protect against abrasion and chemicals
Simple cuboidal epithelium
Location: thyroid glands, ducts kidney
Function:secretion, absorption protection
Stratified cuboidal epithelium
Location: Ducts of sweat glands (rare)
Function: secretion, absorption, protection
Simple columnar epithelium
Location:lining of stomach intestines, uterine tubes and collection of ducts of kidneys
Function: psa
Stratified columnar epithelium
Location: pharynx, epiglottis, mammary glands, salivary glands anus
Function: ps
Pseudo stratified ciliates columnar epithelium
Location:lining of nasal cavity, broachi and portions of male reproductive organs
Function: PS
Transitional epithelium
Location: urinary bladder, pelvis, ureters
Function: permitted expansion and recoil
Collagen fibers
It provides strength and cushioning to many different areas of the body, including the skin. More specifically, collagen is found in our various types of connective tissue such as cartilage, tendons, bones, and ligaments
Elastic fibers
found in extracellular matrix of connective tissue and produced by fibroblasts and smooth muscle cells in arteries. These fibers can stretch up to 1.5 times their length, and snap back to their original length when relaxed.
Reticular fiber
connective tissue composed of type III collagen secreted by reticular cells. Reticular fibers crosslink to form a fine meshwork
White blood cell apart of the immune system
Mast cell
White blood cells that eat anything that’s not healthy to the body ex: cancer cells
Macrophages
ANATOMY
a cavity or depression, especially in bone.
Feedback
Lacunae
Functional unit of most compact bones
Osteon
Star shaped bone cell found most in mature bone tissue
Osteocytes
Main tissue component of the brain and spinal cord
Nervous tissue
cells found in cartilage connective tissue. They are the only cells located in cartilage, they produce and maintain the cartilage matrix,
Chondrocyte
Connects the two parts of the spinal cords
Central canal
many lamellae very close to one another, with open space between. Aside from respiratory organs
Lamelle
Small canal found in bones
Caniculi
Holds organs into place connect epithelia tissue to other underlying tissues commonly found in vertebrates
Loose Areolar tissue
Term for loose connective tissue composed of adipocytes. Its main role is to store energy in the form of fat, although it also cushions and insulates the body.
Adipose tissues
forms a scaffolding for other cells in several organs, such as lymph nodes and bone marrow.
Reticular tissue
provides connection between different tissues in the human body. Found in tendons and ligaments
Dense regular tissue
fibers that are not arranged in parallel bundles found around muscle and organs dermis
Dense irregular tissue
A type of connective tissue consisting mainly of elastic fibers and found in the walls of arteries, dermis of the skin, and certain ligaments and tendons.
Elastic tissue
makes up the embryonic skeleton. It persists in human adults at the ends of bones in free-moving joints as articular cartilage, at the ends of the ribs, and in the nose, larynx, trachea, and bronchi. tissue provides smooth surfaces, enabling tissues to move/slide easily over each other
Hyaline cartilage
great flexibility so that it is able to withstand repeated bending. The chondrocytes lie between the fibres. It is found in the epiglottis (part of the larynx),the pinnae (the external ear flaps of many mammals).
Elastic cartilage
found in the pubic symphysis, the anulus
Function: flexibility and toughness
Fibrous cartilage
cell showing minimal cytoplasm, limited amounts of rough endoplasmic reticulum and lacks biochemical evidence of protein synthesis.
Fibrocyte
a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.[1]
Blood
voluntary’ control of the somatic nervous system. are attached to bones by bundles of collagen fibers known as tendons.
Skeletal muscle
is an involuntary, striated muscle that is found in the walls and histological foundation of the heart,
Cardiac muscle
microscopic identifying features of cardiac muscle. Connect heart muscle cells so it can function as a whole
Intercalated discs
contracts slowly and automatically. It constitutes much of the musculature of internal organs and the digestive system. The stomach
Smooth muscle
