Epithelial, Connective, Muscular, & Nervous
Epithelial Tissue - Most Common
- Squamous - flat and scale like
- Cuboidal - cube-shaped
- Columnar - tall, elongated cells
- Simple - one cell thick
- Stratified - multiple cells thick
*Epithelial Tissue is thick and dense like a wall. Walls protect, and hold things together. Just like a wall, Epithelial Tissue protects the body from the environment as well as holding the body together. We would not want a neuron to be protecting, us for the dendrites are like antennas and are made to transmit signals for communication.
Connective, Muscular, & Nervous Tissues
There are 6 functions of Connective Tissue:
There are 3 types of Muscular Tissue:
The function of Nervous Tissue is to generate and transmit nerve impulses, some insulate and protect neuronsNervous Tissue is found in very few places:
- Protects/Cushions Organs
- Extracellular Matrix can bear weight
- Adipose - insulate/store fat
- Blood - transports materials
- Bone - provides framework/protection
- Dense Connective Tissue
- Loose Connective Tissue
- Skeletal - movement
- Smooth - move food(peristalsis) & blood through the body
- Cardiac - synchronous contractions of the heart
*Connective Tissue is very fibrous, elastic, and strong. Connective Tissue reminds me of the weave of socks. This weaving is able to bend, stretch, and bear lots of weight. We want these tissues to be our bones, cartilage, and fat, which are all able to bear weight, bend to an extent, and stretch.
*Muscular Tissue is very elongated, striated, elastic, and able to contract. It reminds me of a rubber band. The rubber band is able to stretch then come back to it's original shape. We want this for movement, because we want to stand firm(in our structure) and not like a wet noodle.
*Nervous Tissue has many dendrites and an axon. These components remind me of antennas. Antennas are able to send messages to other antennas to be able to communicate. We want nervous tissue to do this for they have dendrites that look like antennas in order to communicate with other cells.