Muscular system Flashcards
What kind of appearance do skeletal muscles have?
Striped
What kind of muscle is a skeletal muscle?
Voluntary
What do skeletal muscles connect together?
Bones via tendons
What are 3 examples of skeletal muscles in the body?
- Quadriceps
- Hamstrings
- Gastrocnemius
Where are cardiac muscles found?
In the walls of the heart
What kind of muscle are cardiac muscles?
Involuntary
Do cardiac muscles fatigue?
No
What do the contractions of the cardiac muscle help with?
Forcing blood through the blood vessels to all parts of the body
What kind of muscle is a smooth muscle?
Involuntary
Where are smooth muscles found?
Within blood vessels
What 2 things do smooth muscles help with?
- Regulating digestion
- Regulating blood pressure
What is the function of the deltoid?
Abduction at the shoulder
What is the function of the bicep?
Flexion at the elbow
What is the function of the tricep?
Extension at the elbow
What is the function of the pectoral?
Horizontal adduction at the shoulder
What is the function of the quadriceps?
Extension at the knee
What is the function of the hamstrings?
Flexion at the knee
What is the function of the hip flexors?
Flexion at the hip
What is the function of the gluteals?
Extension at the hip
What do the wrist extensors do?
Allow for the extension and straightening of the hand at the wrist
What do the wrist supernators do?
Allow for the supernation of the forearm
What do the wrist pronators do?
Pronates the forearm
What are the 4 movements that can take place in the wrist?
- Supernation
- Pronation
- Extension
- Flexion
What is the function of the tibialis anterior?
Dorsiflexion at the ankle
What is the function of the gastrocnemius?
Plantarflexion at the ankle
What is the function of the soleus?
Plantarflexion at the ankle
What is the erector spinae?
A long muscle that runs either side of the spine