Tissue unit types of tissues and functions

simple squamos

epithelial

location: alveoli of lungs, lining blood vessals

Function: Gas exchange diffusion of nutrients/water/waste

Simple cubodial

epithelial

location: kidneys, tubules, ducts of glands, outer ovary

function: secretion, absorption

Psuedo stratified columnar

epithelial

location: lines respiratory track

function: making mucus, secretion, absorption, protection

What are general characteristics of epithelial cells?

rapidly grows, great for protection since it is a layer that can be sacrificed, usually avascular = no blood

Simple columnar

epithelial

location: stomach, intestines

function: making mucus, secretion, absorption, protection

Stratified squamos

epithelial

location: Esophagus, mouth, vagina,  epidermus(outer layer of skin)

function: protect from cuts and pathogens

Transitional

epithelial

location: lines parts of urinary system, ureters, bladder

function: stretching, helps with expanding and contracting

What are general characteristics of connective tissues

most abundant tissue in your body, binds structure together, support, insulation, and protection. Vascularization = blood cells

Areolar loose tissue

connective

location: between muscles and beneath skin

function: binds organs together

Reticular (dense irregular)

connective

location: major part of your skin (2nd layer dermis)

function: strength and flexibility

There is no pattern to what it looks like

Adipose (loose)

connective

location: deep layer of skin

function: stores lipids which is energy, insulation, shock absorption

Dense Fibrous

connective

location: tendons and ligaments

function: hold

tendon: muscle to bone 

ligaments: bone to bone 

What is a general theme for cartilage

doesn’t repair after injury and all lack blood flow

Hyaline Cartilage (dense)

connective

location: Joints, nose, trachea

function: support and cushion

Elastic Cartilage (dense)

connective

location: ears, epiglottis

function: support yet stretchy

Fibrocartilage (dense)

connective

location: spinal area

function: flexibility and shock absorption

Bone (dense)

connective

location: skeleton

function: protection, support, and mineral storage

Blood (loose)

connective

location: blood vessals

function: supplies cells with nutrients and oxygen and takes away waste(co2)

Red blood cells - no nucleus

White blood cells - nucleus

cardiac muscle tissue

muscle

location: heart

function pumps blood

without conscious control - involuntary

skeletal muscle tissue

muscle

location: connects to bones of the body

function: movement of the body

voluntary movement 

smooth muscle tissue

muscle

location: organs of the stomach, intestines, cardiac, urinary, and respiratory

function: involuntary

Nervous tissue

neuron

location: brain, spinal cord, nerves throughout the body 

function: transmit and receive messages, coordinated movement or function