Heatlhy Living Flashcards
Functions of the skeleton
Support, Protection, Movement, production of blood cells and stores minerals
Types of joints
Fixed-Skull
Freely moveable-Shoulder
Slightly moveable-Finger
Three connective tissues
Cartilage, Tendon and Ligament
Cartilage
At the end of each bone in a joint, acts as a cushion
Ligament
Attaches bone to bone, elastic and strong
Tendon
Attaches muscle to muscle or to bone, non elastic
Antagonistic muscle
A pair of muscle that work in opposite way to perform a flex. Whilst on contracts the other one relaxes; e.g. knee joint
Contracts
Shorter and fatter
Relaxes
Longer and thinner
What does it mean to be fit
The 4’S’ Strength, Suppleness, Speed and Stamina
Recovery time
The time it takes to your body to bring you heart rate, breathing rate and temperature back to normal
Aerobic Respiration
A slower but more efficient way to release energy
Oxygen + Glucose —> Water + Carbon Dioxide ( + Energy)
Anaerobic Respiration
A faster but less efficient way to release energy
Glucose —> Lactic acid ( + Energy)
What is a Drug?
A substance that affects the human body
Drug Types
- Legal/illegal
- Recreational/Therapeutic
- Depressants, Stimulants, Hallucinogens, antibiotics, vaccines
- Class A,B,C
- Natural/Synthetic
Main Substances in cigarette smoke
Nicotine, Carbon Monoxide and Tar
Tar
Cancerous, sticky substance - Dyes your lungs black
Nicotine
An addictive substance that makes you want to keep smoking
Carbon Monoxide
A poisonous gas that substitutes the oxygen in your body. It makes respiration harder
Effects of alcohol abuse
- Lack of sleep
- Gain Weight
- Damage Liver
- Risk of caner
- High blood pressure
- Heart attack or stroke
Unit of alcohol
10ml or 8g of PURE alcohol
Exercise
Decreases blood pressure
Heart disease
Arteries get blocked up
Types of synovial joints
- Hinge
- Ball and socket
- Saddle
- Gliding
- Pivot
Stimulant
speeds up the body(ecstasy)
depressant
slows down the body(alcohol)
antibiotic
kills bacteria
hallucinogen
makes you imagine things that aren’t real
addiction
compulsive need for a substance or action
Diaphragm
Contracts when inhaling(down)
Relaxes when exhaling(up)
