Biology B3 Flashcards
What is epithelial tissue?
A thin layer of tissue that covers organs, glands, and other structures within the body
What are the types of epithelial tissue?
Squamous Epithelial Tissue
Columnar Epithelial Tissue
Endothelium Tissue
What is the structure of the squamous epithelial tissue?
1 cell thick
Smooth and flat layer
What is the function of the squamous epithelial tissue?
Make diffusion faster
Where is the squamous epithelial tissue found?
Alveoli
What is the structure of the columnar epithelial tissue?
Column shaped ciliated cells
What is the function of the columnar epithelial tissue?
Protects against infections
Where is the columnar epithelial tissue found?
Trachea
What is the structure of the endothelium tissue?
1 layer thick
Layer of flattened cells lining all blood cells
What is the function of the endothelium tissue?
Formation of new blood vessels
Where is the endothelium tissue found?
Lining for the heart and blood vessels
What are the types of muscle tissue?
Skeletal
Cardiac
Smooth
What is striated?
The repeating bands of protein along the muscles
What muscles are striated?
Skeletal
Cardiac
What muscles are non- voluntary?
Cardiac
Smooth
Where is the smooth muscles found?
Walls of hollow organs like the stomach or bladder
Extend muscles
What the types of muscle fibre?
Slow Twitch
Fast twitch
What are slow twitch muscles good for?
Endurance Running
What are fast twitch muscles good for?
Sprinting
What type of of muscle fibre has lots of mitochondria?
Slow Twitch
What type of respiration is slow twitch muscles?
Aerobic
What type of respiration is fast twitch muscles?
Anaerobic
Which muscle fibre types has lots of myoglobin?
Slow Twitch
What colour are slow twitch muscles?
Red
What colour are fast twitch muscles?
White
Muscle contraction
What is the central nervous system?
a system that makes up millions of nerve cells which carry electrical impulses around the body
What are the types of nerve cells?
Myelinated
Non-Myelinated
What is a nerve cell?
a cell which carries electrical impulses from the brain to the rest of the body
Parts of a nerve cell
Axon terminal
Dendrite
Soma
Node
Axon
Nucleus
Myelin Sheath
What is an axon?
What is an axon terminal?
What is an dendrite?
What is a myelin sheath?
What is a soma?
What is synapse?
The gap between neurons
What is a neurotransmitter?
The chemical that transports the action potential across the synapse to the next neuron
What is the synaptic bulb?
the neuron ends which are swelling where the neurotransmitters are stored
Where are neurotransmitters contained?
In the vesicles in the synaptic bulb
