Kinesiology Exam 2 Practice

Which of the following statements regarding carbon dioxide is false: 

• A) It plays an important role in the body’s defense against changes in acidity. 
• B) It is a by-product of metabolism. 
• C) It moves from tissue into blood via diffusion. 
• D) It moves from tissue into blood via active transport by special protein channels.

Which of the following is not a component of the respiratory system:   

• A) lungs
• B) blood vessels
• C) respiratory passageways (e.g., bronchioles)
• D) intercostal muscles

Bernoulli’s principle is:
     

• A) the direct relationship between flow velocity and pressure
• B) the inverse relationship between flow velocity and pressure
• C) the direct relationship between flow velocity and lift
• D) the inverse relationship between flow velocity and lift

A qualitative analysis requires: 

• A) a framework within which skilled performances can be observed 
• B) a set of principles within which movement can be analyzed 
• C) a checklist to use when identifying errors 
• D) all of the above  

Air is filtered, humidified, and adjusted to body temperature in the:  

• A) nose
• B) bronchi 
• C) trachea
•  D) bronchioles

In the Cori cycle: 

• A) lactic acid is metabolized in the liver into glycogen and then pyruvic acid  
• B) lactic acid is metabolized in the muscle fiber into pyruvic acid and then glucose
• C) lactic acid is metabolized in the liver into pyruvic acid and then glucose 
• D) lactic acid is metabolized in the muscle fiber into glucose and then pyruvic acid

An isokinetic contraction: 

• A) involves constant speed of motion 
• B) allows the working muscles to release high tension over each section of movement range 
• C) is a form of dynamic contraction 
• D) all of the above

An eccentric contraction can be both: 

• A) isotonic and static 
• B) concentric and dynamic 
• C) isometric and static 
• D) isokinetic and static

The three types of muscle in the human body are: 

• A) skeletal, smooth, abdominal 
• B) skeletal, smooth, cardiac  
• C) skeletal, vascular, cardiac
• D) motor, smooth, cardiac

The contractile unit of a muscle is: 

• A) muscle fiber 
• B) myofilament (myofibril) 
• C) sarcomere 
• D) myosin