KIN 3309
EMG is used to measure the ____ of a muscle.
Activity
Which of the following bones do not make up the pelvis?
Atlas
All spinal cord injuries (SCIs) result in the exact same symptoms for all patients.
False
Cancellous/spongy bone is also known as cortical bone.
False
If an object is stretched beyond its yield point by a force, it will return to it's original shape when the force is released.
False
Spinal cord injuries (SCIs) of the thoracic region result in the exact same symptoms as SCIs of the cervical region.
False
Stress & strain are the exact same measure.
False
Torque is the tendency of a force to produce object translation.
False
What is the primary movement permitted at the knee?
Flexion / Extension
Using the anatomic position as the reference body configuration, hip abduction occurs in which plane?
Frontal
Which of the following joints are not associated with the shoulder? a Acromioclavicular Joint b Glenohumeral Joint c Scapulothoracic Joint d Sternoclavicular Joint e None of the above
None of the above
What cells are primarily involved in bone resorption (breaking down bone material)?
Osteoclasts
What unit is associated with stress?
Pascals (N/m^2)
Which cross sectional area of a muscle is larger?
Physiological Cross Sectional Area (PCSA
Which joint is the only point of skeletal attachment of the upper extremity to the thorax?
Sternoclavicular joint
Which muscle is the most commonly injured of the rotator cuff muscle group?
Supraspinatus
Which muscle is not a member of the rotator cuff muscle group? a. Teres Major b. Teres Minor c. Infraspinatus d. Supraspinatus e. Subscapularis
teres major
A moment arm is:
the perpendicular distance from the force's line of action to the axis of rotation.
All muscle fibers within a single motor unit are of the same type.
true
The illiopsoas is a hip flexor.
true
Valgus at the hip causes the knee to be more medially aligned.
true
Which muscle / motor unit type is recruited last (according to the Henneman recruitment principle)?
type IIb
The rectus abdominus acts to extend the spine.
false
The spinal cord is in the peripheral nervous system (PNS).
false
Using the anatomic position as the reference body configuration, shoulder abduction occurs in which plane?
frontal/ coronal
Which region of the spine experiences the highest loads?
lumbar
Efferent is another word for...
motor
The ___ of a muscle tends to be on the bone that moves the least during the action of a muscle.
origin
Afferent is another word for...
sensory
Eccentric contractions are a form of which type of muscle contraction?
Isotonic
Large torques can be created by which of the following scenarios. More than 1 answer may be possible.
Long moments arm
In what region does disc degeneration happen most often?
Lumbar
According to Wolff's Law, if a bone was unloaded via immobilization (due to an injury or micro-gravity environment), what would happen to the bone...
More bone would be remodeled than deposited, resulting in less bone mass.
EMG measures ___.
Muscle activity
Using the anatomic position as the reference body configuration, elbow flexion occurs in which plane?
Sagittal
Using the anatomic position as the reference body configuration, hip flexion occurs in which plane?
Sagittal
Which of the following spinal curves involves lateral bending &/or longitudinal twisting of the spine?
Scoliosis
Which region of the spine does this bone reside in?
cervical
All muscle fiber types have the exact same properties.
false
The little finger is known as digit 1.
false
Motor unit ratio (aka size) is:
The number of muscle fibers a motor unit innervates.
The ribs attach to which vertebrae?
Thoracic
The middle finger is known as digit 4.
false
Hyaline cartilage is typically found at bone interfaces (joints).
True
Physiological Cross Sectional Area (PCSA) is never the same as Anatomical Cross Sectional Area (ACSA).
True
The origin of a muscle tends to be on the bone that moves the least during the action of a muscle.
True
The strength of a material is equal to the load that the material experiences at the moment of its failure.
True
Which muscle / motor unit type is recruited first (according to the Henneman recruitment principle)?
Type I