P1. Anatomy and physiology Flashcards
What are the different functions of the skeleton?
Support
Protection
Movement
Blood cell production
Mineral storage
What are the different types of bones?
Long
Short
Irregular
Flat
What is the purpose of the Long bone, and the short bone?
Long - Larger gross movements, lever
Short - smaller fine movements, weight bearing
What is the purpose of a flat bone, and an irregular bone?
Flat - protection of internal organs
Irregular - protection
What are the 8 joint movements?
Flexion, extension
Adduction, abduction
Rotation, circumduction
Plantarflexion, dorsiflexion
What are the two joint types and what movement is available at that joint?
Ball and socket, Flexion, extension, rotation, circumduction, adduction, abduction
Hinge - Flexion and extension
What do ligaments connect?
Bone to bone
What do tendons connect?
Muscle to bone
What does cartilage do?
Acts as a cushion between the joint
What releases synovial fluid?
Synovial membrane
What are the to types of muscular contraction? explain each
Isotonic - Muscle changes length when used
Isometric - muscle stays same length when used
In isotonic contraction, what is extending and shortening called?
Concentric - shortening
Eccentric - lengthening
What is does antagonistic muscle pair mean and an example?
Bicep tricep, paris of muscles that work against each other, whilst one contracts the other relaxes
Is the muscle that is being flexed the agonist or antagonist?
Agonist
What is the cardiovascular systems job?
To move blood around the body as it contains oxygen and nutrients
Explain the cycle of blood coming into the heart and away from the heart
Vena cava - deoxygenated blood back to body
Pulmonary artery- deoxygenated blood to lungs
Pulmonary vein- oxygenated blood to heart from lungs
Aorta - oxygenataed blood to body
What is diastole and systole?
Diastole - heart relaxes and fills with blood
Systole - contracts and pumps blood out
What is the order of breathing in, the air going to your lungs?
Trachea
Bronchi
Bronchioles
Alveoli
Explain Gaseous exchange?
DIffusion, Carbon dioxide goes from an area of high concentration in the capillaries to the alveoli and oxygen moves from a high concentration in the alveoli to the capillaries
What is tidal volume?
The amount of air taken in or out on a normal breath
During exercise, does tidal volume increase
Yes
What is the inspiratory reserve volume?
Amount of extra air inspired on a forceful breath in
What is the expiratory reserve volume?
Amount of extra air expired on a forceful breath out
What is the residual volume?
Amount of air left in lungs after a forceful breath out