7. Identify the different types of muscles in the body with an example for each Flashcards
3 types of muscle tissue within the human body
Skeletal muscle
Cardiac muscle
Smooth muscle
Skeletal muscle
Consists of long, cylindrical, striated fibres
Contractions are voluntary
Usually attached to the skeleton to form a part of the mechanical structure which allows the limbs to move freely
Functions include aids motion, posture, heat production and provide general protection
Cardiac muscle
Consists of branched, striated fibres
Located within the heart wall
Function is to pump blood around the entire body
Smooth muscle
Consists of non-striated fibres
Found within various areas of the body, such as the lungs, stomach, intestine, gallbladder, urinary bladder and uterus
Function is to provide motion, e.g. constriction of blood vessels provides the flow of blood
Name 9 types of muscle fibre arrangements
Flat
Circular
Strap
Parallel
Unipennate
Bipennate
Multipennate
Fusiform
Convergent
3 flat muscles
External oblique
Internal oblique
Transversus abdominis
Function of flat muscles
To flex and rotate the trunk
Fusiform
A muscle that is wider in the middle and narrowing towards both ends
Circular
A ring like band of muscle that surrounds a bodily opening, constricting and relaxing to control flow
Strap
A group of four pairs of muscles in the anterior part of the neck
4 infrahyoid muscles
Sternohyoid
Sternothyroid
Thyrohyoid
Omohyoid
Another name for strap muscles
Infrahyoid muscles
Parallel
Fibers are parallel to the force-generating axis
Unipennate
The fibers are arranged obliquely and insert into a tendon only on one side in the manner of a feather barbed on one side
Bipennate
The fibers are arranged obliquely and insert on both sides into a central tendon
