Kinesiology Exam 1
Which of the following is not a true statement about antagonist muscles?
They work against agonist muscles by contracting and preventing movement.
Abduction takes place around the _____ axis.
anteroposterior
About 50 to 60 percent of the volume of cortical bone is porous.
false
Both sesamoid and accessory bones occur in same numbers in individuals.
false
Cancellous bone is stiffer and can withstand greater stress, but less strain, than cortical bone.
false
Eccentric muscle contractions are referred to as muscle actions instead of a contraction since the muscle is shortening as opposed to lengthening.
false
Epiphyseal plates generally close by age 14, but some may be present until age 18.
false
Flexion is an example of movement in a coronal plane about an anteroposterior axis.
false
Generally, parallel muscles will produce a lesser range of movement than similar-size muscles with a pennate arrangement.
false
The endosteum is located at the ends of long bones.
false
The more sudden the activation of a myotatic reflex, the less significant the reflexive contraction.
false
The sartorius is an example of a fusiform muscle.
false
There are approximately 552 muscles in the human body.
false
Typical bony features include tendons, epiphysis, and articular cartilage.
false
The frontal plane divides the body into _____.
front and back halves
Each of the following joints allows a slight amount of motion to occur except _____.
gomphosis
An instrument used to measure the change in joint angles is a(n) _____.
goniometer
Which of the following is not a function performed by the skeletal system?
production of heat
Forward movement of the shoulder girdle in the horizontal plane away from the spine is called _____.
protraction
The three specific types of accessory motions are _____.
roll, spin, and glide
If the _____ plane runs from anterior to posterior, then its axis must run from side to side.
sagittal
Which of the following is not a term used to classify the pennate type of muscle fiber arrangement?
tripennate
All muscle contractions are classified as either isometric or isotonic.
true
Bones continue to grow longitudinally as long as the epiphyseal plates are open.
true
Both the size and the shape of bones can limit or allow movements.
true
Diagonal abduction is movement by a limb through a diagonal plane away from the midline of the body.
true
Diarthrodial joints are also known as synovial joints.
true
Generally, longer muscles can shorten through a greater range and are more effective in moving joints through large ranges of motion.
true
Most outer bone is composed of cortical bone with cancellous bone underneath.
true
The peripheral nervous system (PNS) can be divided into sensory and motor divisions.
true
The term "action" refers to a specific movement of a joint that occurs as a result of a concentric muscle contraction.
true
The term "intrinsic" usually pertains to muscles within or belonging solely to the body part upon which they act.
true
Two different muscles may contract simultaneously at a joint and cause a motion that neither would cause if contracting alone.
true
When antagonist muscles contract concentrically, they perform the joint motion opposite to that of the agonist muscle.
true
Adduction movement at the wrist in the frontal plane of the little finger side of the hand toward the medial forearm is called _____.
ulnar flexion
Which of the following pairs of muscles produces the strongest contractions?
Bipennate and unipennate muscles
Which of the following statements is true about circumduction?
Combination of flexion, extension, adduction, and abduction
Which of the following is not true of concentric muscle contractions?
Concentric muscle contractions are commonly described as being a negative type of contraction.
Which of the following is not a property of skeletal muscle tissue that allows for force production and movement about joints?
Constrictability
Which of the following is a proprioceptor associated with muscle tissue?
Golgi tendon organ
Which of the following is an example of a transverse plane movement?
Internal rotation of the right shoulder
Which of the following statements is true about an isometric muscle contraction?
It is used to stabilize a body segment.
_____ occurs when an antagonistic muscle becomes stretched to the point where it can no longer lengthen and allow movement.
Passive insufficiency
Which of the following is not a classification of the types of neurons?
Peripheral neurons
Which of the following is the correct definition of kinesiology?
The study of the principles of anatomy, physiology, and mechanics in relation to human movement
