Something you do without thinking about it
habit
The shoulders and hips are examples of which joint
ball and socket
Knees, elbows, and fingers are examples of which joints
hinge
The 33 vertebrae make up the
spinal column
shoulder
trapezius
top of upper arm
biceps
front of upper leg
quadriceps
forehead
frontalis
cheek to chin
masseter
bottom of upper arm
triceps
The process of breathing is called
external respiration
The bronchioles end in tiny air sacs
alveoli
The two branches of the trachea
bronchu
