Muscular System Flashcards
What are the 12 main voluntary muscles?
Deltoid Pectoral major Latissimus dorsi Biceps Triceps External obliques Gluteals Hip flexors Quadriceps Hamstrings Gastrocnemius Tibialis anterior
What is the location of the gluteals and what are their functions?
They are located in the middle of the body at the back, forming the bottom. They adduct and extend the leg at the hips, pull the leg backwards
Where are the hamstrings located in the body and what are their function?
They are located at the top of each leg at the back. They flex the legs at the knees
Where is the gastrocnemius located and what is its function?
It is located at the bottom of each leg at the back. Also known as the calf muscles. They point the toes (planta-flexion) at the ankle
Where is the latissimus dorsi located and what is its function?
The latissimus dorsi is located at the back of the body, either side of the chest. Their function is to pull your arms down at the shoulders and behind your back.
What is the function of the triceps and where are they located?
They are located at the top of each arm at the back. Their function is to extend the arm at the elbow
Where are the deltoids located and what is their function?
The deltoids are located in the upper part of the body, covering the shoulders. They raise the arms in all directions at the shoulders
Where are the biceps located and what is their function?
The biceps are located at the top of each arm at the front. They flex the arm at the elbows
Where are the quadriceps located and what is their function?
The quadriceps are located at the top each leg at the front. Their function is to extend the leg at the knee.
Where is the pectoralis major located and what is its function?
They are located in the upper part of the chest at the front and their function is to adduct the arm at the shoulder.
Where are the external obliques located and what is their function?
The obliques are located to the side of the abdomen and their function is to pull the chest downwards. Flex and rotate the spinal column
Where is the tibialis anterior located and what is its function?
The tibialis anterior runs down the shin. It pulls the toes up towards the shin (dorsi-flexion)
Where are the hip flexors located and what is their function?
They sit deep in the front of the leg and connect the hip. Their function is to flex the hip, help the leg and knee up towards the body.
What are voluntary muscles?
Voluntary muscles are muscles that are under your control, meaning you can decide when you tense them or not. Voluntary muscles can only pull and they do this by contracting
Why are voluntary muscles useful to sport?
Without voluntary muscles, the body would not be able to be controlled as you could not choose when you move the muscle, meaning movement would be completely random
