Paper 1 - Anatomy & Physiology (part 1) Flashcards
- The Skeletal System - The Muscular System - Lever Systems - Plane & Axes of Movement
How many bones are there in the human body?
206
What bone is this?
Cranium
Name one function of the Cranium:
To protect the brain
What bone is this?
Vertebrae
Name one function of the Vertebrae:
To protect the spinal cord
What bone is this?
Ribs
What bone is this?
Sternum
Name one function of the Sternum & Ribs:
To protect the heart & lungs.
Ribs also protect the kidneys
What bone is this?
Clavicle
Name one function of the Clavicle:
- Forms part of the shoulder joint to assist arm movement
What bone is this?
Scapula
Name some functions of the Scapula:
- Protects the shoulder joint
- Allows arm & shoulder movement
What bone is this?
Pelvis
Name some functions of the Pelvis:
- Protects the reproductive organs & bladder
- Helps leg movement
What 3 bones make up the human arm?
- Ulna
- Radius
- Humerus
What bone is this?
Humerus
Give a practical example of when the humerus will be used:
Swinging a badminton racket
What bone is this?
Ulna
What bone is this?
Radius
What bone is this?
Carpals
Give a practical example of when the Radius & Ulna will be used:
Bending the elbow
e.g. Bicep curls
Give a practical example of when the Carpals will be used:
Gripping
(e.g. A cricket ball)
What bone is this?
Metacarpals
What bone is this?
Phalanges
What bone is this?
Femur
Give a practical example of when the Femur will be used:
Muscles move the whole leg
e.g. Running
What bone is this?
Patella
What bone is this?
Fibula
What bone is this?
Tibia
Give a practical example of when the Fibula & Tibia are used:
Muscles move lower leg
e.g. Kicking a football
What bone is this?
Tarsals
Give a practical example of when the Tarsals are used:
Bears the body’s weight when on foot
e.g. standing or doing yoga
What bone is this?
Metatarsals
Give a practical example of when the Metatarsals are used:
Moves the foot
e.g. Jumping
What are the 6 functions of the skeleton?
- Support
- Posture
- Protection
- Movement
- Blood cell production
- Mineral Storage
Explain how the skeleton gives us support?
- Rigid bone frame
- Supports soft tissues like skin and muscle
Explain how the skeleton gives us posture?
Gives our body the correct shape.
—> This helps us have a good posture (important in lots of sports)
Explain how the skeleton gives us protection?
Bones protect vital organs (e.g. Heart, Brain, Lungs)
—> Allows you to preform well in sport without fear of serious injury
Explain how the skeleton gives us movement?
Muscles, attached to bones by tendons, can move bones at joints (essential for good performance)
—> Different types of movement at the various joints which are important in different sports
Explain the blood cell reproduction function of the skeleton?
- Bones contain bone marrow (which makes components of blood)
- Red blood cells = important during exercise. Transports o2 to working muscles
- Athletes w/ more red blood cells = preforms better (more o2 to muscles)
Explain the mineral storage function of the skeleton?
Bones store minerals (e.g. Calcium, Phosphorus)
—> Help with bone strength (less likely to break a bone)
- Also needed for muscle contraction
What is a Joint?
Any points where 2 or more bones meet
What are Articulating bones?
Bones that meet at a joint
What is a Synovial Joint?
A joint that allows a wide range of movements and that has joint capsules enclosing it
What are some examples of Synovial joints?
- Ball & Socket
- Hinge
What is a Hinge joint?
A joint that allows movement in only one direction
Give an example of a Hinge joint:
- Elbow (humerus + radius + ulna)
- Knee (femur + tibia)
What is a Ball & Socket joint?
A joint that allows movement in nearly all directions
Give an example of a Ball & Socket joint:
- Hip (pelvis + femur)
- Shoulder ( humerus + scapula)
What are the 3 types of connective tissue in the body?
- Ligaments
- Tendons
- Cartilage
What’s the purpose of Ligaments?
HOLDS BONES TOGETHER
- Restricts how much joints can move
- Maintains stability of skeleton
- Absorbs shock
What do Ligaments prevent?
Dislocation
What are Ligaments made of?
Tough & Fibrous tissue
What is the purpose of Tendons?
ATTACH MUSCLE TO BONE
What do Tendons allow us to do?
Allows bones to move when muscles contract
Allowing us to move
What’s the purpose of Cartilage?
- Acts as a cushion between bones to prevent damage during joint movement
- Aids stability of joint
What’s the purpose of Cartilage?
- Acts as a cushion between bones to prevent damage during joint movement
- Aids stability of joint
What’s the purpose of Cartilage?
- Acts as a cushion between bones to prevent damage during joint movement
- Aids stability of joint
What’s the structure of a synovial joint?
What’s the purpose of the synovial membrane?
It releases synovial fluid into the joint capsule to lubricate the joint (allowing it to move more easily)
What are the 6 types of joint movement?
- Flexion
- Extension
- Rotation
- Abduction
- Adduction
- Circumduction
What is Flexion?
What is Extension?
What is Abduction?
What is Adduction?
What is Circumduction?
What is Rotation?
What movements do Hinge joints only allow?
Flexion & Extension