Medical Terminology
ab-
away from
What is the largest muscle in the human body?
gluteus maximus
Which muscle is responsible for breathing by contracting and relaxing?
The diaphragm
Which term describes the muscle movement of swinging the arm around in a circle?
Circumduction
True or false:Muscle atrophy happens when muscles are exercised frequently.
False
iso-
equal
What happens to a muscle when it contracts?
fibers shorten, creating a pulling force that causes it to shorten in length and generate tension.
What two muscles make up the calf?
gastrocnemius and the soleus
Straightening the lower arm away from the upper arm is called____________.
extension
True or False:Foot drop is a common contracture.
True
-tonia
tone
What stimulates muscles to contract?
an electrical signal from the nervous system
What muscle cases the elbow to move?
biceps brachii(flexion), triceps brachii (extension).
Muscle on buttock that extends thigh.
gluteus maximus.
True or false:Muscular dystrophy results in a wasting away of the muscles.
True
Myo-
muscle
Which muscle type is not striated (striped under a microscope)?
smooth muscle
What muscle is the arms abductor?
the deltoid
Muscle on upper chest that abducts and flexes upper arm?
pectoralis major
True or False:Fibromyalgia is an inflammation of tendons and fascia.
False
What does fibromyitis mean?
inflammation of muscles & fibrous tissue
How are muscles commonly named? (4 )
Based on characteristics like size, shape, location, or function
Muscle between the ribs used for breathing _______________.
intercostals
In some muscular disorders muscle fibers become short and thick. This is described as _________.
contractibility
What is Myasthenia gravis?
is a condition that happens when communication between nerves and muscles breaks down. This causes muscles to feel weak and get tired quickly.