histology II and integumentary system

histology II and integumentary system - Connective Tissue...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Connective Tissue Histology Part 2 and the Integument n n The “everything else” of the body tissues else” 2 main components n n Cells Extracellular matrix n Ground substance n Fibers n Fiber types: Collagen Elastin n Reticular n n Categories of Connective Tissues n n n n n Loose CT Dense CT Cartilage Bone Blood Areolar Connective Tissue Loose Connective Tissue n 2 Types n n n n Areolar Connective Tissue Adipose Connective Tissue SKIP reticular connective tissue (fig 6.12) Fibroblasts = cells that form the extracellular matrix Areolar Connective Tissue 1 Areolar Connective Tissue Adipose Connective Tissue Adipose Connective Tissue Adipose Connective Tissue Adipose Connective Tissue Dense Connective Tissue n 2 Types n n n n Dense Regular Connective Tissue Dense Irregular Connective Tissue Cell type is Fibroblasts SKIP elastic connective tissue (figure 6.16) 2 Dense Regular Connective Tissue Dense Regular Connective Tissue Dense Regular Connective Tissue Dense Irregular Connective Tissue Dense Dense Irregular Connective Tissue Dense Irregular Connective Tissue 3 Cartilage Connective Tissue Dense Irregular Connective Tissue n 3 types Hyaline Cartilage Connective Tissue Elastic Cartilage Connective Tissue n Fibrocartilage Connective Tissue n n n n n Cell type = Chondrocyte Lacunae Tissue is avascular Hyaline Cartilage Connective Tissue Hyaline Cartilage Connective Tissue Hyaline Cartilage Connective Tissue Elastic Cartilage Connective Tissue 4 Elastic Cartilage Connective Tissue Elastic Cartilage Connective Tissue Fibrocartilage Connective Tissue Fibrocartilage Connective Tissue Fibrocartilage Connective Tissue 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) 5 Bone Connective Tissue Bone Connective Tissue Bone connective Tissue Blood n Cell types Red blood cells White blood cells n Platelets n n n Blood Connective Tissue Extracellular matrix is composed of plasma Blood Connective Tissue 6 Blood Connective Tissue SKIP n n n Reticular Tissue Elastic Tissue Spongy Bone The Integument The Integument n n n Composed of: skin, glands, hair, and nails The integument is a “layered” system layered” It is comprised of all 4 primary tissue types Major components n The cutaneous membrane n n Epidermis Dermis n Subcutaneous membrane n Accessory structures n n n n Hypodermis Glands Hair Nails 7 Functions n n n n n Cutaneous Membrane Provides a barrier Vitamin D production Regulation of body temp Contains sensory receptors Minor role secretion and absorption n Epidermis n n Dermis n n n n 4 cell types 5 layers n n Thin skin n 4 layers n n Skin layers n n n n n n n Stratum basale Stratum spinosum Stratum granulosum Stratum lucidum Stratum corneum Dermis n Papillary layer n n Areolar connective tissue Dermal papillae n Epidermal ridges n Reticular layer n Dense irregular connective tissue Adipose Tissue Epidermis Thick Skin n Made up of connective tissue Hypodermis n Epidermis Made of stratified squamous epithelium Keratinocytes Melanocytes Langerhans cells Merkel cells Dermis Structures n n n n n n n Arrector pili muscles Eccrine sweat gland Apocrine sweat gland Sebaceous gland Meissner’s corpuscle Meissner’ Pacinian corpuscle Dermal papillae 8 Accessory Structures n n n Glands Hair (and hair follicles) Nails Hair and Hair Follicles n Hairs consist of 2 main sections n n Shaft Root n Hair follicle n Arrector pili Muscle n Glands n Sudoriferous glands n n n n n Eccrine sweat glands Apocrine sweat glands Ceruminous glands Mammary glands Sebaceous glands Hair bulb 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 Practical 1 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 9 ...
View Full Document

This note was uploaded on 09/11/2011 for the course PSIO 201 taught by Professor Stanescu during the Summer '08 term at Arizona.

Ask a homework question - tutors are online