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SA2 Biology - Coggle Diagram
SA2 Biology
Respiration & Gas exchange
Aerobic & Anaerobic Respiration
Anaerobic respiration produce Lactic acid only inside the human body
Much less energy is released compared t aerobic respiration
Structure of the respiratory system
The path in which the air flows is: Nose/mouth --> Larynnx --> Trachaea --> Bronchi --> Bronchiolies -->Aveoli --> Capillaries
Breathing
Inspiration
Diaphram & exernal intercostal muscles contract
Internal intercostal muscles relax
Ribs moves upwards and outwards
Pressure becomes lower than the atmospheric pressure
Volume incraseses
gas exchange inside the lungs
Factors increasing the chances of the exchange rate are: thin walls higher surface area, godd vantiltion with air, large blood supply.
The gas exchange process occur by diffusion
The cells inn the lungs
The ciliated cells beat mucus to the throat
The goblet cells produce mucus
Effects of smoking
Decrease the amount of cilia
The amount of mucus increases and thickens
Breaks the thin walls of aveoli
Increases the risks of several lung infections
Neve Resonse and Coordination
neurones
Parts of neurons
Dendrite
Recieve signals from receptor cells
Dendron
Transmits nerve imulses towards the cell body
Cell body
Contains the nucleas, contolling the fiunction of the cell.
Axon
Transmits nerve impulses away from the cell body
Axon terminals
passs impulses ro other neurones
Types of neurons
Sensory
Send the impulse from the sensory receptor to other parts.
Motor
Transmit impulses from the CNS to the sleketral and smooth muscles.
Relay
Allow the sensory and motor to communicate
Excretion