Four primary tissue types (4)
- epithelial
- connective
- muscle
- nervous
Tissue?
Group of cells
Epithelia
Covers or lines
Connective
Supports and connects
Muscle
Movement and nervous tissue regulates and integrates body systems
Epithelial tissue: Simple squamous
Function: allow material to pass through
Example: air sac of lungs
Description:thin layer of flat cells
Epithelial tissue: Simple columnar
Function: absorption and secretion
Example: non-ciliated-digestive tract/ ciliated-lines small bronchi
Description: tall and slender, oval nuclei
Epithelial tissue: Simple cuboidal (kidney, mammal)
Function: absorption and secretion
Example: surface of ovary
Description: box like tall and wide, round nuclei
Epithelial tissues: stratified squamous
Function: protect against rubbing
Example: lines esophagus
Description: thick layer
Epithelial tissue: Pseudo stratified columnar (mammalian trachea)
Function: absorption, secretion of mucus
Example: non ciliated-sperm carrying ducts/ ciliated-respiratory tracts
Description: look like more than 2 rows but only 1, nuclei don’t line up
Epithelial tissue: transitional
Function: allows organs to expand and stretch
Example: forms lining of urinary organs
Description: cell shape changes, multiple layers of cells
Connective tissue: areolar
Function: cushion organs
Example: blood vessels
Connective tissue: dense regular (white fibrous)
Function: attach muscles to bones
Example: tendons
Connective tissue: dense irregular (human scalp)
Function: provide structural strength
Example: dermis of skin
Connective tissue: hyaline cartilage
Function: support and resist
Example: nose
Connective tissue: elastic cartilage
Function: maintain shape of functions
Example: external ear
Connective tissue: bone
Function: protect, structural support, holds calcium
Example: bones
Connective tissue: adipose
Function: stores energy
Example: fat
Connective tissue: reticular
Function: form soft internal skeleton
Example: bone marrow
Muscle tissue: skeletal
Function: voluntary movement
Example: attached to bone
Nerve tissue: ox nerve cells (spinal cord)
Function: transmit signals
Example: brain
Connective tissue (8)
- areolar
- dense regular/ irregular
- hyaline cartilage
- elastic cartilage
- bone
- adipose
- reticular
Muscle subtype
Muscle
Nerve tissue
Ox nerve cells
Epithelial tissue subtypes (6)
- simple squamous
- simple columnar
- simple cuboidal
- stratified squamous
- pseudostratified columnar
- transitional