lab 3 1 slide per page

lab 3 1 slide per page - Histology Part 2 Histology and the...

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Unformatted text preview: Histology Part 2 Histology and the Integument Connective Tissue Connective n n The “everything else” of the body tissues 2 main components Cells n Extracellular matrix n n Ground substance n Fibers n Fiber types: Collagen n Elastin n Reticular n Categories of Connective Tissues Categories n n n n n Loose CT Dense CT Cartilage Bone Blood Loose Connective Tissue Loose n 2 Types Areolar Connective Tissue n Adipose Connective Tissue n n n SKIP reticular connective tissue (fig 6.12) Fibroblasts = cells that form the extracellular matrix Areolar Connective Tissue Areolar Areolar Connective Tissue Areolar Areolar Connective Tissue Areolar Adipose Connective Tissue Adipose Adipose Connective Tissue Adipose Adipose Connective Tissue Adipose Adipose Connective Tissue Adipose Dense Connective Tissue Dense n 2 Types Dense Regular Connective Tissue n Dense Irregular Connective Tissue n n n Cell type is Fibroblasts SKIP elastic connective tissue (figure 6.16) Dense Regular Connective Tissue Dense Dense Regular Connective Tissue Dense Dense Regular Connective Tissue Dense Dense Irregular Connective Tissue Dense Dense Irregular Connective Tissue Dense Dense Irregular Connective Tissue Dense Dense Irregular Connective Tissue Dense Cartilage Connective Tissue Cartilage n 3 types Hyaline Cartilage Connective Tissue n Elastic Cartilage Connective Tissue n Fibrocartilage Connective Tissue n n n n Cell type = Chondrocyte Lacunae Tissue is avascular Hyaline Cartilage Hyaline Connective Tissue Hyaline Cartilage Hyaline Connective Tissue Hyaline Cartilage Hyaline Connective Tissue Elastic Cartilage Elastic Connective Tissue Elastic Cartilage Elastic Connective Tissue Elastic Cartilage Elastic Connective Tissue Fibrocartilage Connective Tissue Fibrocartilage Fibrocartilage Connective Tissue Fibrocartilage Fibrocartilage Connective Tissue Fibrocartilage Bone Bone n n n n Cell type = osteocytes Matrix is organized into layers called lamellae Compact bone connective tissue SKIP spongy bone connective tissue (figure 6.21) Bone Connective Tissue Bone Bone Connective Tissue Bone Bone connective Tissue Bone Blood Blood n Cell types Red blood cells n White blood cells n Platelets n n Extracellular matrix is composed of plasma Blood Connective Tissue Blood Blood Connective Tissue Blood Blood Connective Tissue Blood SKIP SKIP n n n Reticular Tissue Elastic Tissue Spongy Bone The Integument The The Integument The n n It is comprised of all 4 primary tissue types The integument is a “layered” system Major components Major n The cutaneous membrane n n n Subcutaneous membrane n n Epidermis Dermis Hypodermis Accessory structures n n n Glands Hair Nails Functions Functions n n n n n Provides a barrier Vitamin D production Regulation of body temp Contains sensory receptors Minor role secretion and absorption Cutaneous Membrane Cutaneous n Epidermis n n Dermis n n Made of stratified squamous epithelium Made up of connective tissue Hypodermis n Adipose Tissue Epidermis Epidermis n 4 cell types n n n n Keratinocytes Melanocytes Langerhans cells Merkel cells Epidermis Epidermis n Thick Skin n n Thin skin n n 5 layers 4 layers Skin layers n n n n n Stratum basale Stratum spinosum Stratum granulosum Stratum lucidum Stratum corneum Dermis Dermis n Papillary layer Areolar connective tissue n Dermal papillae n n Epidermal n ridges Reticular layer n Dense irregular connective tissue Dermis Structures Dermis n n Arrector pili muscles Sudoriferous glands n n n n n Eccrine sweat gland Apocrine sweat gland Sebaceous gland Meissner’s corpuscle Pacinian corpuscle Accessory Structures Accessory n n n Glands Hair (and hair follicles) Nails Hair and Hair Follicles Hair n Hairs consist of 2 main sections n n n Hair follicle n n n Shaft Root Hair bulb Dermal papilla Arrector pili Muscle Glands Glands n Sudoriferous glands n n n n n Eccrine sweat glands Apocrine sweat glands Ceruminous glands Mammary glands Sebaceous glands Fingerprints Fingerprints n n n n Unique to each individual Pattern is due to epidermal ridges Is the impression made as a result of epidermal ridges and oil/sweat 3 shapes make up the fingerprint: loops, whorls, and arches Break Break n n Look at the skin models Fill out figures 7.1 to 7.5 in your manuals Practical 1 Practical n n n n n Monday 2:30 25 stations 2 minutes each (worth 45 pts) 1 short answer question (5 pts) 1 station where you will focus the microscope Spelling should be phonetically correct ...
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This note was uploaded on 09/11/2011 for the course PSIO 201 taught by Professor Stanescu during the Summer '08 term at Arizona.

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