General consideration on Skeletal Muscle Flashcards
Faster and more forceful movement can be created by…
Motor proteins
What are the three types of muscles?
Skeletal, Cardiac, Smooth
What is the origin of a muscle?
The stable part (nonmoving)
What is the muscle belly?
Part that contracts
What is the Insertion of a muscle?
The distal part that moves
Classification: does 1 action?
Agonist
Classification: opposite action and give an example.
Antagonist
example: bicep, tricep
Classification: can help one another (agonist work in this manner). replace one another during damage.
Synergistic
Classification: Doesn’t create action but stabilizes the region.
Fixator
Name and description
Fusiform
Description: muscle belly, short tendon (proximal) and long tendon (distal)
Name and description
Unipennate.
Description: long tendon at 1 side and muscle fiber on 1 side
Name and description
Bipennate.
Description: single tendon in middle and muscle fiber on each side
Bicep, Tricep, Quadricep
Name and description
Digastric/ Biventer.
Description: 2 muscle belly’s ( fusiform) and a tendon between
Broad (flat)
Serrate (comb teeth). aka strap muscle attached to end.
Whats the shape like and example.
Strap. ribbon shaped in abdomen
Cruciate
Spiral
Name, type of muscle, type of movement, and example.
Sircular/ Sphinteric.
Strap muscle.
Voluntary movement.
In genital region example: rectum.
Explain classification by arterial supply. Reconstructive surgery.
When part of the tissue is lost we must reconstruct the tissue by using a viable tissue (with vascular support). It is supplied from the artery and drained to the vein. We must preserve the artery of a muscle and attach the artery to another artery to fill the tissue gap.
How is the fascia designed?
Bone-Periosteum-Muscle-Deep fascia-Superficial fascia- Skin
What is Periosteum?
the sheath outside your bones that supplies them with blood, nerves and the cells that help them grow and heal
What does deep fascia do?
Covers the entire skeletal muscle
What are the 2 layers of the superficial fascia?
- superficial layer: lots of room for adipose tissue
- close to deep fascia: no adipose tissue
Where are the superficial nerve, veins, arteries, etc located? Any exception?
In the deep layer and not seen in the superficial fatty tissue. There are exceptions like superficial veins (arm).
Where are the facial muscles located?
Superficial fascia
Which muscles aren’t covered by deep fascia?
Facial muscles
What is a compartment?
Muscles that have the same/similar function are in a single room of fascia.
Does a compartment have a limit and how does a vein enter?
Compartment is a confined space. Veins pass through a section of the deep fascia and supply the structure (only entrace to compartment)
What is compartment syndrome
Increasing the pressure in the compartment due to bleeding of the vein. Since the deep fascia has little flexibility its main function is to keep the muscle in shape. Therefore, any muscular nerve, tissue, or vessel that arrives will be blocked and tissue starts to die.
