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A&P Chapter 4
Tissue
| Question | Answer |
|---|---|
| 4 main groups of tissue | Epithelial, connective, muscle, nervous |
| free surface of epithelial tissue | apical surface |
| surface of epithelial opposite apical surface | basement membrane |
| 2 components of basement membrane | basal lamina, reticular lamina |
| surface on which microvili and cilia form | apical surface |
| Is epithelial vascular? | No, avascular |
| Nerve cells between epithelial cells | Innervated |
| 1 layer of epithelial cells | simple |
| multiple layers of epithelial cells | stratified |
| 3 shape classifications of epithelial cells | columnar, cuboidal, squamous |
| Where are simple squamous epithelial tissue found? | air sacs, kidney tubules |
| What is the epithelium called when it lines a blood vessel? | endothelium |
| Where are simple cuboidal epithelium tissue found? | Glands, glandular epithelium |
| Where are simple columnar epithelium tissue found? | stomach lining to rectum, mucosa |
| What feature does the mucosa of the G.I. tract have? | microvilli |
| What is the hollow space inside an organ called? | Lumen |
| Where is pseudostratified ciliated columnar epithelium found | trachea |
| what is the function of pseudostratified columnar epithelium? | produce mucous |
| Where is stratified squamous epithelium found? | skin, epidermis |
| What layer do we look to when naming epithelium cell shape? | apical layer |
| Where is transitional epithelium found? | Urinary bladder |
| Name 2 types of glandular epithelium | exocrine, endocrine |
| what is the function of endocrine cells? | secretions for internal use-hormones |
| what is the function of exocrine cells? | secretions with transportation, i.e. tear ducts, sweat glands |
| What are the 3 components of connective tissue? | cells, fibers, ground substance |
| What are the 3 types of fibers in connective tissue? | collagen, elastic, reticular |
| What are the features of collagen fibers? | good tensile strength, white fibers |
| What are the features of elastic fibers? | elasticity, yellow fibers |
| What are the features of reticular fibers? | lots of branches |
| What is contained in the ground substance of connective tissue? | water, proteins, proteoglycans, gags |
| Name 4 types of cells found in CT | fibroblasts, chondroblasts, oteoblasts, blood cells |
| What is all CT derived from? | Mesenchyme in utero |
| What is the prototypical CT? | Areolar |
| What cell is predominant in Areolar? | Fibroblast |
| Name the types of CT | CT proper, cartilage, bone, blood |
| Name the types of CT proper | Loose CT and dense CT |
| Name the types of loose CT | Areolar, adipose, reticular |
| Which CT is most abundant in the body? | Areolar |
| Where is areolar CT located? | against all epithelial tissue and all organs |
| What is the purpose of adipose ct? | insulation, energy storage |
| Where is adipose ct found? | subcutaneous, around organs |
| What does adipose ct consist of? | large fat cell with little ECM |
| What does reticular ct consist of? | Mainly reticular fiber |
| Where is reticular ct found? | bone marrow, lymph nodes, spleen |
| Name the types of dense CT | regular, irregular and elastic |
| Where is dense regular ct found? | tendons and ligaments |
| What is a tendon? | connects muscle to bone |
| What is a ligament | connects bone to bone |
| What does dense regular ct consist of? | mainly collagen fiber |
| Where is dense irregular tissue found? | dermis of the skin |
| Where is dense elastic ct found? | lungs and walls of big blood vessels |
| What is the function of dense elastic ct? | expand and recoil |
| What fiber does dense elastic ct mainly consist of? | elastic fibers |
| What are 3 types of cartilage? | Hyaline, elastic, fibrocartilage |
| Where is hyaline cartilage found? | ribs, rings of trachea, nose, ends of log bones |
| Which type of cartilage is most abundant? | Hyaline cartilage |
| What cell is predominant in cartilage? | Chondroblast/cyte |
| Where is elastic cartilage found? | external ear, epiglotis |
| Where is fibrocartilage found? | intervertable discs and meniscus of the knee |
| What cell is predominant in bone? | osteoblast/cyte |
| What is the function of bone ct? | structure, produce rbc, storage of minerals and salts |
| What is the most unique ct? | Blood |
| What is the predominant cell in blood? | blood cell |
| Where is the ecm produced for blood? | bones and other places |
| Where is the ecm produced for other connective tissue? | By the predominant cell for that CT |
| What is the function of blood ct? | Transportation of materials throughout the body |