The chest and abdominal cavities are separated by what tough,
Which is not a category of muscles?
Muscles that straighten two bones at joints are called extensors.
What is the name for muscles that cause two bones to bend at joints?
Muscle tissue is either relaxed or ...
The deltoid muscle in the shoulder got its name because it resembles
what plane geometric figure?
About how many muscles are there in the human body?
C. 87 or 88
D. almost 700
E. between 300 and 350
It is about the size of two fists clenched together and weighs
about 340 grams. It works 24 hours per day. Name this muscle.
The tendon which connects the calf muscles to the back of the
foot is named after what character from Greek mythology?
A football player with a bruised hamstring has an injury in his
The esophagus carries food from the mouth to the stomach by means
of rhythmic contractions of its muscles. What four-syllable term
describes this rhythmic contraction?
Two distinctive characteristics of muscle tissue include electrical
excitability and ...
A muscle which contracts ...
Muscle tissue which has atrophied has ...
A. been torn through strain
B. an increased blood supply
C. wasted away because of disuse
D. been developed through exercise
E. become inflamed through infection
The triceps is an extensor. What is the corresponding flexor?
Muscle fatigue is caused by an accumulation of what acid in the
A. lactic acid
B. oxalic acid
C. pyruvic acid
D. carbolic acid
E. salicylic acid
The smallest muscle in the body is the stapedius, a tiny muscle
in the ear which controls movement of what bone?
Which organ has both voluntary and involuntary muscles?
A. the eye
B. the heart
C. the larynx
D. the stomach
E. the cerebrum
Which muscle is most important for an athlete doing sit-ups?
D. latissimus dorsi
E. rectus abdominis
Which condition is most closely associated with a person who has
lost the ability to move one or more of limbs?
What is a five-letter name for a prolonged and painful contraction
of a muscle?
The function of a sphincter muscle is to ...
A. close a tube
B. flex a joint
C. cause a pulse
D. extend a joint
E. draw air into the lungs
Normal tension of muscles is called muscle ...
Which muscle would be the least significant in kicking a ball?
D. rectus femoris
E. gluteus maximus
Smooth muscle tissue is best adapted to which task?
A. playing the piano
B. moving food through the stomach
C. regulating the heartbeat
D. transmitting data from the eyes to the brain
E. giving form to the nose and ear
What kind of muscle tissue is composed of a great number of muscle
fibers, each of which extends the entire length of the muscle?
The spasmodic contraction of the diaphragm produces a ...
Vertebrates and some higher invertebrates both possess striated
and smooth muscle fibers, but only vertebrates possess a third
type of muscle tissue. Name it.
A painful cramp of a muscle is known as what kind of horse?