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The Amazing Human Body

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by

Engers Fernandez

on 24 September 2015

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Transcript of The Amazing Human Body

The Amazing Human Body
Tissues - General Concepts
Smallest structural - functional and conscious unit of life
Tissue
Cells that are similar in structure and function.
Histology
The study of tissues.
Epithelial Tissue
sheet of cells that covers body surface or lines a body cavity.
Protection
Absorption
Filtration
Excretion
Secretion
Sensory reception
Classified by
#
of layers and
shape
of the cell
Pseudostratified epithelium
simple columnar but varies in height
Transitional Epithelium
cells with the ability to slide one another
to allow the organ to stretch.
Connective Tissue
tissue that connects, supports, binds, or separates other tissues or organs, typically having relatively few cells embedded in an amorphous matrix, often with collagen or other fibers, and including cartilaginous, fatty, and elastic tissues.
Nervous Tissue
Highly specialize tissue, made up of neuroglia and neurons.
Neurons
highly specialize cell in receiving stimuli and generate electrical signals.
Neuroglia
supports and protect neurons.
Muscle Tissue
highly specialized in contract and produce body movement.
Involuntary
Voluntary
and
SKIN (Integumentary System)
SKIN
Integumentary System
The Integumentary System
avascular, keratinized stratified squamous epithelium.
sensitive connective tissue layer of the skin located below the epidermis, containing nerve endings, sweat and sebaceous glands, and blood and lymph vessels
microscopic glands in the skin that secrete an oily/waxy matter, called sebum, to lubricate and waterproof the skin and hair of mammals
1
2
small tubular structures of the skin that produce sweat
3. Hair follicle
4. Hair root
5. Hair shaft
3
6
smooth muscle fibres which attach to several follicles, control by autonomic nervous system
Fuction
Cellularity
Polarity
Supported by connective tissue (basement membrane)
Avascularity, but innervated
Regeneration
Characteristics
Skin Diseases
Skin Cancer
Full transcript