BIOL 030 Lecture Notes - Lecture 5: Pubic Symphysis, Tunica Media, Chondrocyte
17 May 2020
School
Department
Course
Professor
Bio 30
Cos
Human Anatomy
Pseudostratified Columnar Epithelium Fig 4.4
● Microscopic Appearance looks stratified but all cell arise from basement membrane,
often ciliated
● Locations respiratory passages
● Functions secretion of mucus, trapping of dust & moving them away from the lung
Stratified Squamous Epithelium Table 4.2, Fig 4.5
● Microscopic Appearance many layers, metabolically active cuboidal cells at base,
flat dead cells at surface
● Locations epidermis, oral cavity vagina
● Functions resist abrasion, prevent infection, stop water loss
Stratified Cuboidal Epithelium Glands ONLY
● Microscopic Appearance two layer cube like cells
● Locations sweat, mammary & salivary glands
● Functions protection & secretion
Transitional Epithelium Fig 4.6
● Microscopic Appearance many layers with tear-drop cells that do not flatten toward
surface
● Locations urinary bladder
● Functions allow stretching of urinary bladder
Connective Tissue Table 4.5
● Connective Tissue Proper (Fibrous)
o Dense fig 4.13, 4.14
▪ Regular parallel, ligaments & tendons
▪ Irregular deep layers of skin & white of eye
▪ Elastic tunica media of arteries, dark squiggly lines
o Loose fig 4.15, 4.16
▪ Reticular glycoprotein coated fibroblasts provides framework for soft
organs; thymus, spleen, lymph nodes
▪ Areolar large pink collagen fibers, small dark reticular fibers and
immune cells, insulates organs from infection
o Adipose fat, cellular, store lipids Fig 4.17, Table 4.8
● Supporting Connective tissue
o Cartilage Table 4.9, Fig 4.19, Fig 4.20, Fig 4.21
▪ Hyaline pairs of cells that appear like ‘eyes’, end of long bones, rib,
trachea & larynx
▪ Elastic netlike pattern of fibers around chondrocytes, flexible
framework for external ear, nose & epiglottis
▪ Fibrocartilage numerous collagen fibers in rows, protect from wear &
tear in pubic symphysis & intervertebral discs
o Bone Marrow fig4.18, adipocytes & stem cells
o Bone fig 4.22, concentric circles, located in skeleton
Document Summary
Microscopic appearance looks stratified but all cell arise from basement membrane, often ciliated. Functions secretion of mucus, trapping of dust & moving them away from the lung. Microscopic appearance many layers, metabolically active cuboidal cells at base, flat dead cells at surface. Functions resist abrasion, prevent infection, stop water loss. Microscopic appearance two layer cube like cells. Microscopic appearance many layers with tear-drop cells that do not flatten toward surface. Connective tissue proper (fibrous: dense fig 4. 13, 4. 14, regular parallel, ligaments & tendons, elastic tunica media of arteries, dark squiggly lines. Fluid connective tissue extracellular matrix is fluid, no visible fibers: blood many cells, no nucleus in rbc"s lymph. Always separated from each other by large amounts of extracellular matrix. Nervous tissue main component of brain, spinal cord & nerves, do not divide, high metabolic rate, highly cellular- little extracellular matrix.
