Cardiac
Do Cardiac muscle cells have striations?
Yes.
Does exercise affect muscle strength and size?
Yes.
Involuntary or Voluntary?
Involuntary
Involuntary or Voluntary?
Involuntary
Muscle or a tissue?
Tissue
What are the main components of the cardiac system?
The heart and blood vessels
What is a sarcomere?
The functional unit of a muscle fiber, containing actinn and myosin
Why do smooth muscles lack striations?
the actin and myosin filaments are not the length of the cell.
Why are visceral muscles considered involuntary?
Because their contractions are not under control
What is a tendon?
a connective tissue that connects muscles to bones
to pump blood through the body
What is the primary function of skeletal muscles?
To produce movement by contracting and pulling on bones through tendons
Where is smooth muscle located in the body?
Primarily in the walls of internal organs
What is the main function of visceral muscles?
To perform contractions in internal organs
what is the function?
to transmit the force produced by a muscle contraction to the bone, enabling movement at joints
What is the primary function of the cardiac system?
To transport oxygen and nutrients to the body's cells and remove waste products like carbon dioxide through blood circulation.
What are the key components of a skeletal muscle?
Muscle fibers, fascicles , tendons, and connective tissue sheaths.
How is smooth muscle controlled?
influenced by hormones
Where are visceral muscles located in the body?
Primarily in the walls of hollow organs like the stomach, intestines, bladder, uterus, blood vessels, and airways.
The 2 types of tendons are what?
Tendons can be flexor tendons or extensor tendons.
What is the difference between arteries and veins?
Arteries carry oxygenated blood away from the heart to the body, while veins carry deoxygenated blood back to the heart.
How are skeletal muscles controlled?
By the nervous system, sending signals to initiate voluntary muscle contractions
How does smooth muscle contraction differ from skeletal muscle contraction?
Smooth muscle contractions = slower
skeletal muscle contractions = Rapid
How do visceral muscles contract?
Through the action of neurotransmitters.
What is the difference between a tendon and a ligament?
A tendon connects muscle to bone, while a ligament connects bone to bone.