Chapter 2 Quiz Questions Flashcards
What is the functional unit of the nervous system?
Neuron
The body’s ability to differentiate between walking on concrete and walking on sand is an example of using which function of the nervous system?
Sensory
Which systems accomplish human movement through their functional integration?
Muscular, nervous and skeletal systems
What term refers to the motion of a joint?
Arthrokinematics
What are sensitive to changes in tension and the rate of that change, protecting a muscle from possible injury?
Golgi Tendon Organs
What gland produces the hormones epinephrine and norepinephrine that help prepare the body for activity and fight or flight response?
Adrenal gland
*Also releases hormones corticosteroids and catecholamines in response to stress
What consists of a series of irregularly shaped bones divided into 5 categories located in the backbone?
Vertebral column
What is a characteristic of muscle spindles?
They are sensitive to change in length of muscle and the rate of that change.
They’re a mechanoreceptor that help prevent muscles from stretching too far or too fast.
Which gland releases growth hormone during childhood & through puberty?
Pituitary gland
What hormone is produced primarily in the ovaries in females and small amounts in adrenal glands in males?
Estrogen
According to sliding filament theory, when does muscular contracting occur?
Actin and myosin filaments slide past each other, shortening the entire sacromere.
A catabolic hormone secreted by the adrenal glands and serves to maintain energy supply through breakdown of carbs, fats and proteins.
Cortisol
