Chapter 5 Flashcards
Weight-bearing exercise helps strengthen bones through what process?
Remodeling
Which of the following protein structures is important for muscular contractions by providing a binding site?
Troponin
What are the two components of a sarcomere?
Actin and myosin
When a client’s heart rate is raised during cardio activities, this is being caused by which system?
Sympathetic nervous system
Which type of muscle fiber has a large number of capillaries?
Type I
Which term describes the movement of bones, such as flexion and extension?
Osteokinematics
What is it called when a ligament is overstretched or torn?
A sprain
Humans can learn new things at any stage of life, due to which process that causes the brain to reform neural pathways?
Neuroplasticity
Human movement is accomplished through the functional integration of three systems within the human body: the nervous system, the skeletal system, and what other system?
Muscular
What is the correct order of fascia, starting with the most superficial?
Epimysium, perimysium, endomysium
What is a characteristic of a type II muscle fiber?
Short-term contractions
Calcium is often associated with bone health, but why is it also important for muscular function?
It stimulates actin and myosin activity.
What is the correct order of segments for the spine, starting at the top?
Cervical, thoracic, and lumbar
Which type of joint includes the sutures of the skull?
Nonsynovial
What is a characteristic of a type I muscle fiber?
Less force production
Which type of muscle fiber is predominantly used during movements that require high levels of force and power, such as a sprint?
Type II
Which mechanoreceptor is sensitive to changes in muscular tension and rate of that tension change, causing the muscle to relax, which prevents the muscle from excessive stress and possible injury?
Golgi tendon organs
A person walks differently when they move from a sidewalk onto the sand. This is regulated by what function?
Motor function
What is the process by which bone is constantly renewed?
Remodeling
When a gymnast balances on a beam, they are aware of their body’s general orientation and the relative position of its parts. This is due to which key sensory function?
Proprioception