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Chapter 4
Stauzenberger College: Chapter 4
Question | Answer |
---|---|
Name the four types of tissues and their functions | -Epithelial: Covers and Lines -Connective: Provides support -Muscle: Enables movement -Nerve: Controls work |
Name the two surfaces of an epithelial cell | -Apical -Basal |
Which surface faces the lumen? | Apical |
Epithelial cells lack blood vessels and capillaries which make them _____ | Avascular |
What are the six functions of epithelial tissue? | -Protection, Filter, Absorption, Detect changes in environment, Secretion, and Excreation |
What are the three types of functional complexes and what are their differences? | -Tight Junctions: Prevents the passage of substances from the luminal end to the basal end of the cell. -Desmosomes: Found in tissues that undergo repeated episodes of tension and streaching. -Gap Junctions: fond in intestinal epithelial cells. |
A half of a desmosome is called what? | Hemidesmosome |
This is the foundation of the epithelial cell. | Basement membrane |
Name and describe the three different shapes of cells. | -Flat cells: Squamous -Cube Shaped: Cuboidal -Tall, Colum-like cells: Columnar |
A cell with microvilli has how much more surface area compared to a cell without microvilli? | 20 times |
What is the substance of the surface of the skin that is a protective, water proof covering? | karatin |
What does "pseudo" mean? | False |
What are the 6 different ways that glands can be classified? | -Presence or absence of ducts -Number of cells that compose them -Shape of secreting ducts -Complexity of the glandular structure -Types of secretion they produce -Manner in which the secretion is stored and discharged |
What is the different between endocrine and exorine glands? Give some examples of each | -Endocrine: They have no ducts! & their secretions travel throughout the body via blood stream. -Exocrine: They have ducts! & they do not enter the blood stream or lymphatics |
Holocrine secretion occurs principally in what specific gland? | Sebaceous gland |
Mixed exocrine glands contain what components? | water |
Thin, watery secretions are considered _______ | Serous |
Thick viscous secretions are ______ | Mucous |
Which type of connective tissue (dense or loose) is poorly vascularized? | Dense |
If the main duct is branched, it is considered ______ | compound |
What is the difference between fixed and transient cell types? | The difference between fixed and transient cells are: -Fixed cells remain in the connective tissue -Transient cells pass in and out of the connective tissue |
How does brown fat differ from white fat? | Brown fat is only found in newborns & animals that hibernate. Brown in color because there are exceptionally high numbers of mitochondria which produces more heat. |
What are the 3 subtypes of dense connective tissue? | -Devise regular -Dense irregular & elastic tissue |
Give 3 examples of specialized connective tissue | -Cartilage -Blood -Bone |
Why is cartilage limited in thickness and slow to heal? | |
Name and describe the 3 types of cartilage: | -Hyaline cartilage: Most rigid and found in joints and the tracheal rings. -Elastic Cartilage: more flexible and is found in the epiglottis and ears. -Fibrocartilage: Able to take on compression forces the vertebrae and in joints. |
Even though blood and bone appear to be grossly different, they both represent types of connective tissue? | Because both have ground substances, cells & fibers |
Membranes are composed of what two tissue types? | mucous membranes & serous membranes |
Where are mucous membranes found? | -Mouth -Stomach -colon -esophagus -nostrils -trachea -bladder |
What is effusion? | Excess fluid that has escaped into a body cavity of normal body function. |
What is ascites? | an abnormal condition in which excessive amount of fluid accumulation is present in the abdominal cavity. |
What is the difference between exudate and transudate? | |
Where are synvial membranes found? | In joints it does not have epithelium |
List the 3 types of muscle and how they differ | -Skeletal: responsible for movement. Is under voluntary control*only one* -Smooth muscle: has only one nucleus per cell. under involuntary control -Cardiac: only found in the heart and is under involuntary control |
Describe the process of inflammation: | 1. Casoconstruction to control bleeding 2.Cells release histamine & heparin 3.vasodilation Hot, swollen, red 4.blood flow compresses on nerves and causes pain 5.Clotting begins 6.Pus forms 7.Swelling begins |
Basement Membrane: | A non-cellular, collagen-based structure that supports epithelial tissue |
Mucous: | Complex, gel-like substance that is secreted nu goblet cells. Acts as a lubricant and protective barrier. |
Mast Cells: | A transient cell of connective tissue used in the infamatory response. DOSE NOT CIRCULATE IN BLOOD. It recognizes foreign invaders & release herarin and histamine to increase blood flow |
Adipose tissue: | Asipose connective tissue is a vascularized type of connective tissue. General functions are to protect, insulate, and provide a major source of energy to the body can occur as brown or white adipose tissue. |
Squamous cells: | Flat hexagonal cells |
Loose connective cells: | It is a vascularized type of connective tissue. General functions are to support the structures it surrounds. |
Columnar cells: | Tall, thin epithelial cells having nuclei located at their basal end; often ciliated |
Cuboidal cells: | Cube-shaped cells having centally located nuclei |
Serous cells: | Thin, watery secretions composed of mostly enzymes; transudoles |
Extracellular matrix: | The non-living substance found between cells that provides support and nourishment |
Macrophages: | Phagocytic cells that can engulf relatively large cells or bits of debris. They may be fixed in place or they may travel around in the tissues. |
Secretory Ducts: | Secretions are produced by secretory cells and carries the secretion to the seposition site. |
What are the 2 connective tissues? | -Connective tissue proper -Specialized Connective tissue |
Loose connective tissues includes: | Aerolar, adipose and reticular |
What is the most common type of connective tissue in the body? | Aerolar Tissue |
Adipose Tissue is_____ | fat |
Retecular connective tissue contains only one type of fiber | Reticular fiber |
Dense connective tissue: | It's what tendions and ligaments are. It connects muscles to structures and is made of collogen |
true or false: is bone the most rigid of the connective tissues and forms the skeleton? | True |
Membranes: | Thin protective layers that line body cavities, seperate organs, and cover surfaces |
What are the 4 different types of membranes? | -Mucous -Serous -Cutaneous -Synovial |
The epithelial layer is either stratified squamous or simple columnar | 1 thin layer |
Lamina propria: | Covers a layer of loose connective tissue |
Submucosa: | Another connective layer is under that |
Parietal and visceral peritoneum means | abdominal |
Parietal and visceral pleura means: | lungs |
Parietal and visceral pericardium means | around Heart |
Viseral means: | Covers organs |
The fluid that it secretes is thin and watery and not cloudy look so you can see threw them. They lubricate and reduce friction is called: | transudate |
Transudate in the abdominal cavity is called: | Peritoneal fluid |
Transudate in the thorac cavity(around lungs) is called: | Pleural fluid |
Transudate in the pericardium(around the heart) is called: | pericardial fluid |
The transudate has blood in it or if it is not clear it's called: | exudate |
The serous fluid is overproduced it is called: | effusion |
peritoneal fluid is over produced an animals abdomen will be distended this is called: | Ascites |
The mesentery that attaches the stomach to the body wall is called: | omentum |
The mesentery that attaches to the uterus body wall is called: | broad ligament |
Cutaneous membrane: | intergument or skin |
The underlying connective tissue is called: | the dermis |
Synovial Membranes: | Line the cavities of joints, They have NO epithelium, they are composed exclusivly of connective tissues. |
Dry, tacky gums: | dehydration |
Yellow, icteric gums: | liver problems or amneia |
Blue gums: | Hypoxia |
Deep Red gums: | Fever, increased heart rate |
White, Pale gums: | Shock, anemia, hypothermia |
Steps of wound healing: | -Inflammation -Organization -Regeration |
Proud flesh is what? | the granulation tissue over proliferates and gets too thick. **ONLY IN HORSES** |
Wound repair is classified as what: | first, second and third intention |
What side of the cell faces the lumen or body cavity? | The Apical surface |
What side of the cell faces the underlying connective tissue? | The basal surface |
Avascular means: | they have no blood vessels or capillaries. They relay on underlying connective tissue to provide oxygen and nutrients. |
A hemidesomosome(half a desmosome) | . |
The surface of a cell that has microbilli is called: | Brush border & has to do with absorption |
If their is only one layer of skin it is called: | Simple |
If their is more than one layer it is called: | stratified |
A ______ gland releases its products by exocytosis and the cells remain intact: | Merocrine |
An __________ gland loses part of the secretory cell when it releases its prodcuts. | Apocrine |
in a _________ gland, the entire secretory cell is destroyed when its products are released | holocrine |
ferrets need this removed: | adrenal |