epithelial tissue (savannah) Flashcards
refer to groups of cells that are similar in
structure and function
Tissues
Types of tissues:
epithelial, connective, muscle, nervous
a type of animal tissue that forms the
inner and outer lining of organs, the covering in
surfaces, and the primary glandular tissue of the body
Epithelial tissue
Apical
top
bottom
Basal
Tight Junction (also called ____ _____)
occluding junction
- continuous intercellular barrier between epithelial cell.
Tight Junction (also called occluding junction)
Critical component of epithelial tissue, to main the
integrity and function of tissue.
Tight Junction (also called occluding junction)
It composed of different proteins/complex proteins to
help to seal diff. epithelial tissue
Tight Junction (also called occluding junction)
proteins of tight junction
occludin & claudin
molecules travel through tight
junction (semipermeable)
Paracellular
travel through cell
Transcellular
fingerlike structure, faster
absorption
Microvilli
found in small intestine
Microvilli
hairlike structure, motile
Cilia
specialize microvilli,
of its hairlike structure to form balance & hear
Stereocilia
found in ears,
Stereocilia
- most abundant tissues in the body
Connective tissue
Connective tissue - most non-vascularized like
tendons & ligaments
- vascularize (blood vessels & good blood supply)
Connective tissue
- rubber like protein, stretch and recoil
1) elastin fiber
- mesh-like structures
2) reticular fiber
- to shape the tissue
2) reticular fiber
- strongest, thickest among three fibers
3) collagen fiber
bone to bone
ligaments
muscle to bones
tendons
muscle to muscle
fascia
functions of connective tissue
- Structural and Support
- Binding and connecting
- Transportation
- Immune Response
- Cushioning and shock absorption
Cartilage- absorb shock to avoid collision of
bones - Repair and healing
fewer cells and
fewer fibers
loose connective tissue
viscous or thick
- collagen (strength & structure) &
elastic protein fibers(flexibility)
- highly vascularized that has good
blood supply
- found in blood vessels, organs, and
blood vessels
areolar
- produce fiber in extracellular matrix
Fibroblast
- highly vascularized: rich blood supply
& deliver nutrients
adipose
made of ______ or fat cells (a
form of ___) filled with fat
droplets found under the skin and
surrounding various organs
adipocytes
triglycerides
types of adipose tissue:
WAT – white energy storage
BAT – brown energy storage,
(produce heat in the body)
Thermogenesis
- found: bones, lymph nodes
- produced fibers, scaffolding, support
- looks like cherry blossom, has a
branching network - give supportive framework, in split,
bones marrow and lymph nodes
reticular
very tightly pack of collagen fibers
- avascular (low blood supply)
- tendons and ligaments
regular
help to maintain collagen
& fiber tissue
fibroblast cells
- tightly pack but the pattern is irregular
- highly vascularize (richer blood supply)
- found in the dermis of skin or coverings
of bones
irregular
(membrane of blood
vessels and nerves that wraps around
most of your bones)
periosteum
- elastic fibers, no collagen fibers
- found in trachea, vocal chord, and etc.
- made of fibroblast cells
elastic
- semifluid or jell like matrix
cartilage
- glossy and translucent jell like matrix
- give support & maintain body shape
- repair cartilage
- Avascular = poor blood supply
- found in caps of the bones, nose,
respiratory passage
hyaline/ cartilage
- specialize cartilage contains collagen
- act as a great shock absorber
- toughest form of cartilage
- found in spinal chord
fibrocartilage
absorb shock, found
in spinal chord, fibrocartilage
intervertebral disk
- high content of elastic fiber or collagen
fiber - found in external ear & epiglottis (when
we swallow something, prevent the
food into trachea)
elastic
more solid/compact, less flexible
bone
- dense hard bone found in outer layer
of our bone - calcium phosp.hate, hydroxyapatite =
form because of mineral component
compact bones
– cell of bones
osteocytes
circle
osteon
nerves
central canal or harversian canal
spongy bone
- pores/absorb shock
bone marrow – produce RBC
hematopoiesis – formation of blood
b) spongy bone
– produce RBC
bone marrow
formation of blood
hematopoiesis
(transportation of
nutrients)
red blood cells
(protect
our body from bacteria)
white blood cells
− Hormones, when taking pills it thickens
Pulmonary metabolism
- transportation of fats & white blood
cells - clear color
- produce lymphocytes that fight
pathogens
- lymph /lymph nodes
