BIO044 (LAB) MOD 2 ANIMAL TISSUE Flashcards
Is a group of cell that have a similar function or specialization with an organism.
Tissue
The origin tissues will on which __________ the cells originated
Germ layer
4 types of animal tissue
- EPITHELIAL TISSUE
- CONNECTIVE TISSUE
- MUSCLE TISSUE
- NERVOUS TISSUE
This tissue forms the protective covering and inner linings of the body and organs.
EPITHELIAL TISSUE
They develop from the ectoderm, endoderm, and mesoderm.
EPITHELIAL TISSUE
The tissue is made of tightly packed cells supported by and underlying__________.
Basement membrane
Different types of epithelial tissue are identified according to:
- Shape of the epithelial cell
- Number of cell Layers
Shape of the epithelial cell:
- Squamous
- Cuboidal
- Columnar
Number of cell Layers:
- Simple
- Stratified
Flat, polyhedral cells with a nucleus at the center
Squamous
Cells with almost equal height from width with a nuclear at the center.
Cuboidal
Cells which are taller than wide with a nucleus at the region.
Columnar
Cells are only in one layer.
Simple
Cells are stacked in more than one layer.
Stratified
Cells appear to have more than once layer, but actually is just one layer with different sized cells overlapping each other.
Pseudostratified
“pseudo” means =
Fake
The epithelial tissue is made of a single layer of flat cells.
Simple squamous epithelium
This tissue supports and bind other organs and tissues together, preventing organs form mechanical shocks, also helps repair other tissues.
CONNECTIVE TISSUE
Connective tissue develop from the_______.
Mesoderm
It has less cells called _______, and has more _______ (collagen fiber, elastic fiber, and/or reticular fiber) and a fluid-like or gel-like solution called the __________.
- fibrocytes
- fibers
- extracellular matrix
Different types of connective tissue:
- Dense Connective Tissue
- Loose Connective Tissue
Has more fibers and less extracellular matrix.
Dense Connective Tissue
If the fibers are arranged in random patterns.
Dense Irregular CT
If the fibers are arranged in regular patterns.
Dense Regular CT
Is a special type of dense connective tissue.
Bone
Has more extracellular matrix than fibers.
Loose Connective Tissue
Is a special type of loose connective tissue, which has an extracellular matrix made primarily of fluid in the form of plasma.
Blood
Is a type of loose connective tissue which helps insulate the body. This tissue is also called Adipose Tissue.
Fat (adipose)
This tissue helps in movement and locomotion, supports bones and other structures as well as responsible for the movement of your intestines (called peristalsis) and contractions of the uterus.
MUSCLE TISSUE
MUSCLE TISSUE develops from the:
Mesoderm
It is made up of cells that are elongated and spindle-shaped called:
Myocyte
3 types of muscle tissue:
*Smooth muscle
* Skeletal muscle
* Cardiac muscle
Contractions are involuntary
Smooth muscle
Contractions are voluntary
Skeletal muscle
The muscle cells are elongated and cylindrical with many _________ (parallel lines) which are actually the _______.
- cross-striations
- muscle fibers
Responsible for the uniform contractions of the heart and the contractions are also involuntary.
Cardiac muscle
This tissue make up the central nervous system and peripheral nervous system.
NERVOUS TISSUE
Nervous tissue develops from the:
Ectoderm
Nervous tissue is made up of?
Nerve cells (or neurons)
Nerve cells or neurons composed of:
- Cell body/ Soma
- Processes
The large central area which contains a single nucleus.
Cell body/ Soma
Extension of the cell body.
Processes
2 types of Processes extension of the cell body:
- Axon (Nerve fiber)
- Telodendron
A single long, cylindrical process that transmit impulses to other neurons.
Axon ( Nerve fiber)
Small terminal branches at the end of an axon.
Telodendron
The axon is wrapped several times by a _______, which increases the rate of electrical conduction.
Myelin sheath
The myelin sheath discontinues several times, so that electrical impulses jumps to one myelin sheath to the next known as:
Saltatory conduction
A highly branched, tree- like processes designed to receive impulses from other neurons.
Dendrites
Illustrate the different types of epithelial tissue:
*.Epithelial cell
* Nucleus
* basement membrane
