Test 1 - Lab 3 - Histology - Connective Tissue Flashcards
1
Q
what cartilage is found in auricle (pinnae) of ear and epiglottis
A
elastic cartilage
2
Q
what are the functions of osseous tissue (bone)
A
- support
- blood production
3
Q
carinate notes
A
- categorized based on flexibility and support, based on fibers in the matrix
- perichondrium
- stronger and more resilient than previously discussed types
- provides more flexibility than bone
- occurs in areas of body that need support and must withstand deformation
- avascular in mature state
- 3 types: hyaline cartilage, fibrocartilage, elastic cartilage
4
Q
what cartilage supports the ribs and nose
A
hyaline cartilage
5
Q
what are the characteristics of connective tissue
A
cells - widely spaced, usually have ‘cyte’ ending
matrix - both surrounds the cells of connective tissue and is secreted by it
- ground substance: background substance in which cells are embedded, amorphous, structural
- fibers: add strength or flexibility, collagen bundles, elastic fibers, reticular fibers
6
Q
where can you find fibrocartilage
A
between vertebrae in spine, meniscus, pubic symphysis
7
Q
adipose tissue notes
A
- commonly known as fat
- composed primarily of adipocytes
- filled with lipid droplets
- weight gainer loss due to enlarging or shrinking adipocytes
- stores energy
- acts as an insulator
- serves as packing and cushion around structures
- located in subcutaneous layer
- surrounds various organs
8
Q
stratified squamous epithelium notes
A
- protects against abrasion and friction
- has multiple cell layers, only deepest in direct contact wit basement membrane
- apical cells with squamous shape
- basal layers with cuboidal shape
- stem cells in basal layer that continuously divide, replace lost cells
- exists in nonkeratinized and keratinized forms
9
Q
fibrocartilage structure notes
A
- this tissue has many fibers
- collagen fibers abundant
- chondrocyte in lacunae
- this tissue offers more support than flexibility
- weight bearing cartilage which resists compression
- protein fibers in irregular bundles between chondrocytes contribute to durability
- sparse amount of ground substance
- found in: intervertebral discs, public symphysis, menisci of knee joint
10
Q
hyaline cartilage notes
A
- most common type of cartilage
- clear, glassy appearance under microscope
- chondrocytes irregularly scattered
- surrounded by perichondrium
- found in: nose, trachea & larynx, costal cartilage, articular ends of long bones, most fetal skeleton
- support the ribs and nose
11
Q
7 types of connective tissue
A
- areolar connective tissue
- adipose tissue
- blood
- bone
- hyaline cartilage
- fibrocartilage
- elastic cartilage
12
Q
where is areolar connective tissue found?
A
- major component of subcutaneous layer
- surrounds organs, nerve and muscle cells, and blood vessels
13
Q
osseous tissue notes
A
- more solid than cartilage
- provides greater support but less flexible
- contains organic components (collagen & glycoproteins)
- contains inorganic components (calcium salts)
- bone cells called osteocytes: are housed within spaces in the extracellular matrix called lacunae
- covered by a dense irregular connective tissue called periosteum
14
Q
blood liquid connective tissue notes
A
- composed of cells and cellular fragments, platelets that help clot blood
- cells include erythrocytes that transport respiratory gases
- include leukocytes that mount immune response
- ground substance termed plasma, containing dissolved proteins that transports nutrients, wastes, hormones
15
Q
areolar connective tissue notes
A
- loose organization of collagen & elastic fibers
- abundant distribution of blood vessels
- contains all fixed & wandering cells of connective tissue proper
- found in the papillary layer of the dermis
- major component of subcutaneous layer
- surrounds organs, nerve & muscle cells, and blood vessels
