MUSCULAR SYSTEM Flashcards
MUSCULAR SYSTEM Purpose
Movement
* Either to move an animal in their environment
*Or move substances such as:
*Nutrients
* Wastes
*Gases
*Hormones
* Lymph fluid
MUSCULAR SYSTEM
3 BASIC TYPES
*SKELETAL
*CARDIAC
*SMOOTH
Less movable location on a bone where muscles attaches
ORIGIN
more movable attachment
INSERTION
HOMOLOGOUS MUSCLES in Rabbits and
Humans
RABBIT HUMAN
SERRATUS VENTRALIS
SERRATUS ANTERIOR
GEMELLUS MINIMUS
GEMELLUS INFERIOR
TIBIALIS CRANIALIS
TIBIALIS ANTERIOR
GLUTEUS PROFUNDUS
GLUTEUS MINIMUS
NINE PART CODE FOR MEMORIZING MUSCLES
- Size
- Shape
- Orientation
- Mechanical action
- Number of origins
- Points of origins and insertion
- Name of the muscle function
- Location by anatomic orientation
- Location by body part.
Size
largest
Maximus / magnus
Size
smallest
Minimus
Size
intermediate in size
Medius
Size
larger
Major
Size
smaller
Minor
Size
Shortest
Brevis
Size
longest
Longus
Size
great or huge
Vastus
Shape
shaped like a trapezoid
Trapezius
Shape
refers to delta (Δ); thus refers to triangular shaped muscle that sits on top of the shoulder
Deltoid
Shape
root word is “serrare”, which means saw.
Serratus
Shape
French word for flat.
Platysma
Shape
diamond shaped
Rhomboid
Shape
square or four sided
Quadratus
Shape
round or cylindrical shaped
Teres
Orientation
straight or erect, parallel to the midline
Rectus
Orientation
transverse or perpendicular to the midline
Transversus
Orientation
slanted or diagonal to the midline
Oblique
Orientation
a name given to ringlike muscles that encircle and orifice and that may form a constricting passage
Orbicularis, sphincter
Mechanical Action of the Muscle
decrease the angle at a joint
Flexor
Mechanical Action of the Muscle
muscles that increase the angle at a joint
Extensors
Mechanical Action of the Muscle
turn limbs so that they face downwards or backward
Pronator
Mechanical Action of the Muscles
turns limbs so they face upwards or forward
Supinator
Mechanical Action of the Muscle
muscles that lift things up
Levators
Mechanical Action of the Muscle
depresses a structure or part
Depressor
Mechanical Action of the Muscle
moves a part toward the midline
Adductor
Mechanical Action of the Muscle
moves a part away from the midline
Abductor
Mechanical Action of the Muscle
rotates one structure relative to another
Rotator
Mechanical Action of the Muscle
refers to thumb
Opponens
Number Points of origins
two heads
Biceps
Number Points of origins
three heads
Triceps
Number Points of origins
four heads
Quadriceps
Origin and Insertion
Sternocleidomastoid
sterno and cleido for its origin, the sternum and clavicle; and mastoid for its insertion, the mastoid process.
Origin and Insertion
Brachoradialis
Brachio for its origin on the upper arm; radialis for its insertion on the radius of the forearm
Origin and Insertion
Sternohyoid
Sterno for its origin on the sternum; hyoid for its insertion to the hyoid bone
Function
a facial muscle that is crucial for the expressions of smiling and laughter. It comes from the latin word “risus” which means “laugh”
Risorius
Function
comes from the Greek word for “chew,” which is the function of the jaw.
Masseter
Function
derived from the muscle activity when crossing the legs and comes from the Latin “tailor”. It is a muscle that runs from the outer hip, across the thigh and ends at the inner knee
Sartorius
Location by Body Part
head
Capitis
Location by Body Part
eye
Occuli
Location by Body Part
mouth
Oris
Location by Body Part
lips
Labii
Location by Body Part
neck
Cervicis
Location by Body Part
thorax
Thoracis
Location by Body Part
chest
Pectoral
Location by Body Part
arm
Brachii
Location by Body Part
ulna
Ulnaris
Location by Body Part
radial
Radialis
Location by Body Part
wrist
Carpus
Location by Body Part
palm of the hand
Palmaris
Location by Body Part
finger or toe, singular
Digiti
Location by Body Part
finger or toe, singular