Module 1 - Topic 3-4: Types Of Tissues And Basic Anatomical Terminology Flashcards
Epithelial tissue
Covers body surfaces, lines hollow organs and form glands
Epithelial tissue function
A barrier
Absorption
Secretion
Connective tissue
Protects and supports the body
Bonds organs together
Stores energy reserves
Provides immunity
Connective tissue function
Organise and maintain body structure
Transport gases
Defence
Muscle tissue
Generates physical force for movement
Muscle tissue - functions
Movement
Nervous tissue
Detects changes in conditions
Responds by initiating and transmitting nerve impulses
Nervous tissue - functions
Sensory and motor impulse conduction
Interpretation of external and internal environment
Controls and coordinates body activities
Tissue development
From 3 primary gem layers
Primary germ layers
Ectoderm
Endoderm
Mesoderm
Simple epithelium
Single layer of cells
Stratified epithelium
Two or more layers of cells
Pseudostratified epithelium
Single layer that appears stratified
Squamous cells
Flattened
Cuboidal cells
Cube shaped or hexagons
Columnar cells
Tall and cylinders
Transitional cells
Able to undergo changes in shape cause by distension
Simple squamous epithelium
Located in areas of little wear and tear and adapted for diffusion and filtration, eg, inner lining of heart chambers
Simple cuboidal epithelium
Adapted for secretion and absorption eg, kidney tubules and small ducts
Simple columnar epithelium
Some areas have cilia to move material past cells (upper respiratory passages)
Some have microvilli to increase surface area and efficiency of absorption (small intestine)
Stratified squamous epithelium
Provides protection to areas of much wear and tear eg, outer layer of skin
Stratified cuboidal epithelium
Provides protection eg, ducts of sweat glands
Stratified columnar epithelium
Functions in protection and secretion eg large ducts of some glands
Transitional epithelium
Contains cells that undergo changes in shape and locate sin areas of stretching eg, urinary bladder
Pseudo stratified columnar epithelium
Functions in secretion or movement of materials by ciliary action eg, Fallopian tubes
Glandular epithelium
Specialised cells organised to form glands that secrete substances either into ducts, onto surfaces or directly into blood
Anatomical position
A standard position that ensures directional terms are clear
Anatomical position - position
Body is erect
Feet flat on floor
Upper limbs at side
Palms facing forward
Prone position
Body is lying face down
Supine position
Body is lying face up
Semi prone position
Body is lying on it’s side
Regional names
Terms given to specific regions of body
Regional names - types
Head - cephalic
Neck - cervical
Trunk - shoulders to gentials, except limbs
Upper limbs - shoulders to gentials (arms)
Lower limbs - gentials to heel