Anatomy & physiology Flashcards
Define Synovial Joint
An area of the body where two or more articulating bones meet
What is the role of Ligaments
Attach bone to bone, restricting movement
What is the role of Cartilage
Prevents bones from rubbing together and causing friction
What is the role of Synovial Fluid
Lubricates the joints and stops bones rubbing together
What is the role of Tendons
Join muscle to bone
Name the four types of bones in the human body
Flat bones, long bones, short bones and irregular bones
Name and describe the functions of the skeleton
1) support ( for muscles and vital organs)
Without support the body won’t be able to move
2) protection ( for vital organs)
Protection is crucial for both performance and long term health, reducing chances of injury
3) Movement
Occurs at joints, movement to move is needed for all sports
4) shape and structure (maintaining basic form of body)
Without this we won’t be able to move
5) Blood cell production ( takes place in bone marrow)
6) storage of minerals (essential for all major body functions)
Linked to general health of performer which affects sporting performance
Name and describe the 6 movements possible at the shoulder
Flexion ~ decreasing the angle of bones at a joint
Extension ~ increasing the angle of bones at a joint
Circumduction ~ a comical movement of a limb in a ball and socket joint
Adduction ~ movement of a bone or limb towards the midline of the body
Abduction ~ movement of a bone or limb away from the midline of the body
Rotation ~ a circular movement around a joint
Name the muscles that produce movement at the shoulder
Deltoid, pectorals, trapezius, rotator cuff and latissimus dorsi
Name the muscles that produce movement at the elbow
Biceps and triceps
Name the muscles that produce movement at the hip
Gluteals and hip flexors
Name the muscles that produce movement at the knee
Quadriceps and triceps
Name the muscles that produce movement at the ankle
Gastrocnemius and tibialis anterior
Define prime mover
The muscle that contracts to create movement
Define Antagonist
the muscle that relaxes to allow a movement to take place
Define isotonic contractions
A muscle contraction when the muscle changes length. Can be eccentric or concentric
Define isometric
A muscle contraction when the length of the muscle does not change length when it contracts.
Define concentric and eccentric
Concentric is when the muscle shortens
Eccentric is when the muscle lengthens
List adaptations of the alveoli that aid rapid gaseous exchange
~ one cell thick ~ short diffusion pathway ~ moist cell wall ~ large surface area ~ capillary network surrounds alveoli
Define residual volume
The amount of air that remains in the lungs after maximal expiration
Define heart rate
The number of times your heart beats in one minute. Measured in bpm/ beats per minute
What are the four main sections in the heart
~ right ventricle
~ left ventricle
~ right atrium
~ left atrium
Define arteries
Muscular ward tubes that carry oxygenated blood away from the heart to the working tissues
Define capillaries
The smallest blood vessels which provide the site for gas exchange with the respiratory system
Define veins
Thin tubes that carry deoxygenated blood back to the heart
Define gaseous exchange
The process by which oxygen and carbon dioxide diffuse between the respiratory system and the cardiovascular system