Soc14-The Muscular System Flashcards
Where is the Deltoid located and what is it’s function?
- At the upper arm and the top of the shoulder
- Movement of the arm in all directions
Where is the Pectoralis Major located and what is the function?
- Covering the chest
- Adduction of the arm & shoulder
Where is the Latissimus Dorsi located and what is its function?
- It extends from the lower area of the upper arm
- Adduction & extension of the arm at the shoulder
Where is the location & function of the bicep?
- The front of the upper arm
- Flexion of the arm at the elbow
What is the location and function of the Tricep?
- At the back of the upper arm
- Extension of the arm at the elbow
What is the location & function of the External obliques?
- The side of the abs down to the lower half of the ribs near the pelvis
- Flexion and rotation of the spinal column
What us the location and function of the Gluteals?
- From the buttocks and is attached to the femur
- Adduction and extension of the leg at the hip
What is function & location of the hip flexors?
- Infront of the hip connecting to the pelvis and abs
- Flexion at the hip & to help move the leg toward the body
What is the function and location of the Quadriceps?
- Four muscles at the front and back of the upper leg
- Flexion of the leg at the knee
What is the location and function of the Gastrocnemius?
- At the back of the lower part of the leg
- Helps to point the toes ,increasing the angle between the body and the foot
What is the location & function of the Hamstrings?
- Locted at the back of the leg steching from the bottom part of the pelvis to the tibia
- Flexion of the leg at the knee
What is the function & location of the Tibialis Anterior?
- Located at the from of the lower leg around the area of the shin
- To decrease the angle between the body and the foot
Define muscle fibres
Voluntary muscle is made up of bundles of individual fibres. Each fibre contains many mybrofils which are strands that can grab onto each other.
What are slow twitch fibres?
Slow twitch fibres suit endurance activities and can work for long periods of time
Which twitch fibres are darker?
Slow twitch fibres
