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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
Epithelial tissue functionlines and covers free surfaces and forms glands
Connective tissue functionconnects things and helps build shape/structure, protection
Muscular Tissue functioncontracts to produce movement within or out of the body
nervous tissue functiontransports information, integrates information
cilium/ciliahair like structures on the apical surface of psuedostratified and simple columnar that create a current to move things like mucus
Apicalopen surface
basalbottom of tissue where basement membrane is
basement membranenot really a membrane. It holds epithelial and connective tissues together
keratinizedcontains keratin proteins that end up killing cells and leave flakes (epidermis). toughens skin; found on surface of skin
epithelial VS connectiveepithelial is avascular, has lots of cells packed into sheets, connective has fibers and is underneath basement membrane
non-keratinizedstratified squamous with no dead cells; found in moist open surface areas
goblet cellsfound only in simple columnar and psuedostratified; produces mucus in mucus membranes
cutaneous membrane is made by what type of tissuestratified squamous epithelia
endothelium is made by what type of tissue?innermost lining of blood vessels; simple squamous epithelia
What is mesothelium and what type of tissue is it made up of?builds serous membrane; simple squamous epithelia
Where would you find Simple Squamous epithelial tissue?In serous membrane (mesothelium)
Where would you find Simple Cuboidal epithelium?Kidney Tubules
Where would you find Simple Columnar epithelium?GI tract (INTESTINES). It secretes mucus and has cilium.
Where would you find Transitional EpitheliumUrinary bladder because it is elastic and stretchy. In a relaxed state it is scalloped.
Where do you find psuedostratified columnar epithelium?Respiratory track (TRACHEA)
Where do you find stratified squamous epithelium?Moist openings such as mouth lining, Vaginal Canal. This tissue can be keratinized (kills top cells)
Difference between endocrine and exocrine glands?endocrine stays in the body (hormones), exocrine leaves the body (sweat, wax, saliva)
What are merocrine glands?thin watery secretion from exocrine glands (Forehead sweat)
What is an example of Apocrine exocrine glands?Scent glands found in your mammory, armpits, groin (sweat). Aren't active until puberty. Thicker secretions because portions of cells come off.
holocrine exocrine glandsthickest secretion because whole cell (dies) and become secretory product. Examples are sebaceous glands secrete Sebum (oil), Ceruminous glands secrete Cerumen (wax)
What are the two components of extracellular matrixground substance and Fibers
What is ground substancegel like component of tissue functioning as a background material and gives tissue it's characteristics
What are fibers made out of?They are made up of fibroblasts
What are Fibroblasts?immature cells that can become different types of fiber
Purpose and building blocks of collagen fibersLarge sized fiber made of collagen proteins used for strength.
Purpose and building blocks of elastic fibersMedium size fibers made up of elastin protein and is used for recoil
Purpose and building blocks of Reticular Fiberstiny sized fibers made of modified collagen fibers that build the stroma of organs (SPLEEN)
What is stromaframework or casing of mushy organs (like the spleen)
vascular connective tissuefound in blood vessels made of fibrin tissue (which is made by fribrinogen)
three categories of Connective Tissue and simple explanation of propertiesconnective tissue proper (connects and wraps things) , structural connective tissue (shape and protection), liquid connective tissue (transport)
Areolar Connective TissueUsed to hold organs in place, found below basement membrane and in the papillary region; big fuzzy collagen fibers and skinny elastic fibers; LOOSE TISSUE
Adipose Connective TissueFatty tissue used to store energy and support; Found in the hypodermis region; lots of fat storage and you can't see fibers; LOOSE TISSUE
Reticular Connective TissuesStroma (supporting framework) of liver, Spleen, and Lymph Nodes; Spacey, lots of cells and thick fibers; LOOSE TISSUE
Dense Regular Connective TissueTight collagen fibers that creates tendons, ligaments, and aponeurosis(connects flat muscles to bone); Fibers all in line with a few cells woven in.
Dense Irregular Connective TissueNot organized (Pulled in several directions), found in deeper (reticular) regions of dermis of skin; Underneath Areolar
Elastic Connective TissueDenses of elastic fibers, found in lung and aorta tissue; Thin fibers tightly woven in the same direction
Hyaline Cartilage Connective TissueFound at top part of nose, ends of long bones, respiratory system, and embryonic skeleton ;No fibers, just Lacunae and cells
fibrocartilage (mature) Connective Tissuesupports and joins, found between vertebrae, knee meniscus and pubic symphysis; collagen fibers and lacunae lined
Elastic CartilageEpiglottis and Auricle, Strength (rigidness) and Flexibility; lacunae come in pairs (butterfly wings)
compact Osseous Connective TissueFound on the outside surface of bones. Veins go through central canal, canaliculi deliver nutrients to Lacunae
Spongy Bone Connective Tissue (cancellous)Random splotches; made of trabeculi and bone marrow; contain osteocytes in Lacunae.
Liquid Connective Tissuemade of Blood Plasma, and erythrocytes, leukocytes, and platelets. WITHIN blood vessels