Endurance

Topics: Blood, Physical exercise, Exercise Pages: 82 (15529 words) Published: April 6, 2014

Quiz #1: Chapter 1 – Human Anatomy
ACE’s Essentials of Exercise Science for Fitness Professionals

1) When comparing the medial epicondyle of the humerus to the lateral epicondyle of the humerus, which of the following statements is correct?

a. The medial epicondyle is more toward the front of the body than the lateral epicondyle b. The medial epicondyle is more toward the back of the body than the lateral epicondyle c. The medial epicondyle is more toward the midline of the body than the lateral epicondyle d. The medial epicondyle is more away from the midline of the body than the lateral epicondyle

Explanation
c. The medial epicondyle is more toward the midline of the body than the lateral epicondyle The term “medial” means “toward the midline of the body,” while the term “lateral” means “away from the midline of the body.” ACE’s Essentials of Exercise Science for Fitness Professionals, p. 2

2) Which of the following is NOT one of four types of tissue found in the human body?

a. Muscular
b. Nervous
c. Epithelial
d. Vascular

Explanation
d. Vascular
The four primary types of tissue are muscular, nervous, connective, and epithelial. ACE’s Essentials of Exercise Science for Fitness Professionals, p. 3

3) Which of the four components of blood carries hormones, food materials, ions, and gases throughout the body?

a. Plasma
b. Red blood cells
c. White blood cells
d. Platelets

Explanation
a. Plasma
The liquid component of blood, called plasma, is responsible for carrying hormones, plasma proteins, food materials (e.g., carbohydrates, amino acids, lipids), ions (e.g., sodium, chloride, bicarbonate), and gases (e.g., oxygen, nitrogen, carbon dioxide) throughout the body. ACE’s Essentials of Exercise Science for Fitness Professionals, p. 3–4

4) When blood is flowing through the heart, where does it go after passing through the tricuspid valve?

a. Right atrium
b. Left atrium
c. Right ventricle
d. Left ventricle

Explanation
c. Right ventricle
Blood passes through the tricuspid valve on its way from the right atrium to the right ventricle. ACE’s Essentials of Exercise Science for Fitness Professionals, p. 6

5) The average person’s breathing rate through the nose is equal to 20 to 30 liters per minute while at rest.

a. True
b. False

Explanation
b. False
Humans normally breathe approximately 5 to 6 liters of air per minute through the nose when at rest, but use the mouth as the primary passageway for air when ventilation is increased to approximately 20 to 30 liters per minute during exercise. ACE’s Essentials of Exercise Science for Fitness Professionals, p. 8

6) Which of the following movements takes place in the frontal plane?

a. Depression of the scapulae
b. Flexion at the elbow
c. Extension at the hip
d. Supination at the wrist

Explanation
a. Depression of the scapulae
The movements that take place in the frontal plane are as follows: Abduction
Adduction
Elevation
Depression
Inversion
Eversion
ACE’s Essentials of Exercise Science for Fitness Professionals, p. 21

7) Which of the following statements about flexibility is CORRECT?

a. As people age, flexibility naturally increases due to decreased collagen levels. b. Males are generally more flexible than females.
c. Collagen is made up of proteins that limit motion and resist stretch. d. The build-up of scar tissue after injury often increases flexibility.

Explanation
c. Collage is made up proteins that limit motion and resist stretch. Structures containing large amounts of collagen tend to limit motion and resist stretch. Thus, collagen fibers are the main constituents of tissues such as ligaments and tendons that are subjected to a pulling force. Regarding the other options, flexibility decreases with aging, females are generally more flexible than males, and scar tissue limits flexibility.

ACE’s Essentials of Exercise Science for Fitness Professionals, p. 30 & 32...
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