Topic 1 Anatomy Flashcards
What is the purpose of the Axial Skeleton
The main function of the axial skeleton is protection
What is the main function of the appendicular skeleton
The main function is movement
What are the three types of muscles
Skeletal, Cardiac and Smooth muscles
What is origin
The attachment of a muscle tendon to a stationary bone
What is insertion
The attachment of a muscle tendon to a moveable bone
What are the six main functions of the skeleton
Protection, Support and Structure, Movement, Storage and release of minerals, blood cell production and storage of energy
Characteristics of muscles
Contractibility, Extensibility, Elasticity, Atrophy, Hypertrophy, Nerve stimuli and Fed by capillaries
What is atrophy and hypertrophy
Atrophy- Muscle wastage caused by lack of physical activity
Hypertrophy- Growth and increase of muscle size as a result of training
What is contractibility
Contractibility- The muscles contracts and generates force when stimulated by nerve
What is extensibility
The ability for muscle to extend beyond resting rate
What is elasticity
The muscles ability to return to resting length
Cardiac muscle factors
Heart muscles
Involuntary control
Striated muscle
Smooth muscle factors
Lines walls of organs and blood vessels
Involuntary
Not striated
Skeletal muscle factors
Voluntary control
Striated appearance
Tendons attach muscle to bone
Types of Joints
Hinge joint, Pivot Joint, Ball and socket joint, Condyloid joint, Saddle joint and Gliding joint
Example of hinge joint
Elbow
Example of ball and socket joint
Shoulder
Example of Condyloid joint
Wrist
Gliding Joint example
Ankle
Saddle Joint example
Thumb
Function of long bone
Provide strength, structure and mobility
Function of short bone
Provide stability and fine movements
Function of flat bones
Protect internal organs
Function of irregular bones
More complexed shapes
What is a joint
Where 2 or more bones come into contact with each other
What is a Tendon
A connective tissue that connects muscles to bones
What is a ligament
Connects two bones
What is Cartilage
Resilient elastic tissue that covers the end of long bones reducing friction
What are the three types of joints
Synovial joints, Fibrous joints and Cartilaginous joints
Synovial Joint
The most common joint and is most important joint for mobility eg knee
Fibrous joints
Connects the edge of 2 bones allowing for no movement eg skull
Cartilaginous joints
Allow for little movement and absorb shock eg Pelvis
Inferior
Below/further away from head
Superior-
Closer to your head
Distal
Further away from where limb attached to body
Proximal
nearer to where a limb is attached to the body
Posterior
anything on the back half of the body
Anterior
Anything on the front half of the body
Internal
Inside the body
External
Outside the body
Lateral
Further away from the midline of the body
Medial
Closer to the midline of the body
DRAW A LONG BONE
DRAW A SYNOVIAL JOINT
DRAW THE STRUCTURE OF SKELETAL MUSCLE
Main function Protection
Protects soft tissue and vital organs
Main function- Support and structure
Provides framework for the body
Main function movement
Area for muscles to attach with tendons and joints allow different types of movement.
Main function- Red cell production
Red blood cells carry oxygen to working muscles
Main function-n- Storage of energy
Lipids are stored in bone marrow
Main function- Storage and release of minerals
Bones store and release essential minerals contributing to bodily functions released into blood
Examples of long bones
Femur, Humerus and Ulna
Example of flat bones
Skull, Ribs
Example of short bones
Carpals and Tarsals