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ACE's Essentials of Exercise Science 2013: Chapter 1
Glossary vocabulary over chapter one
47
Fitness
Professional
07/14/2013

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Term
Anatomical Position
Definition
Standing erect with head, eyes, palms, and feet facing forward.
Term
Connective Tissues
Definition

The tissue that binds together and supports various structures of the body.

 

 

ie: ligaments & tendons are connective tissue.

Term
Epithelial Tissue
Definition
Tissue that covers the surface of the body and lines the body cavities, ducts, and vessels.
Term
Digestion
Definition
The process of breaking down food into small enough units for absorption.
Term
Absorption
Definition
The uptake of nutrients across tissue or membrane by the gastrointestinal tract.
Term
Esophagus
Definition
The food pipe; the conduit from the mouth to the stomach.
Term
Artery(ies)
Definition
A blood vessal that carries oxygenated blood away from the heart to vital organs and the extremities.
Term
Capillaries
Definition
The smallest blood vessels that supply blood to the tissues, and the site of all gas and nutrient exchange in the cardiovascular system. They connect the arterial and venous systems.
Term
Veins
Definition
Blood vessels that carry deoxygenated blood toward the heart from vital organs and the extremities.
Term
Plasma
Definition
The liquid portion of the blood.
Term
Hormone(s)
Definition
A chemical substance produced by an endocrine gland and transported through the blood to a target organ.
Term
Carbohydrates
Definition
The body's preferred energy source. Dietary sources include sugars (simple) and grains, rice, potatoes, and beans (complex). Carbohydrate is stored as glycogen in the muscles and liver and is transported in the blood as glucose.
Term
Amino acids
Definition
Nitrogen-containing compounds that are the building blocks of proteins.
Term
Lipids
Definition
The name for fats used in the body and the bloodstream.
Term
Ions
Definition
A single atom or molecule containing a net positive or negative charge due to an excess of either protons (positive) or electrons (negative).
Term
Platelet
Definition
One of the disc-shaped components of the blood; involved in clotting.
Term
Arterioles
Definition
Small-diameter blood vessels that extend and branch out from an artery and lead to capillaries; the primary site of vascular resistance.
Term
Venules
Definition
Small divisions of veins.
Term
Aorta
Definition
The major artery of the cardiovascular system; arises from the left ventricle of the heart.
Term
Arteriosclerosis
Definition
A chronic disease in which thickening, hardening, and loss of elasticity of the arterial walls result in impaired blood circulation; develops with aging, and in hypertenision, diabetes, hyperlipidemia, and other conditions.
Term
Intersistial fluid
Definition
Fluid between the cells or body parts.
Term
Ventricles
Definition
The two lower chambers of the heart (right and left ventricles).
Term
Atrium - Atria
Definition
The two upper chambers of the heart (right and left artium).
Term
Pulmonary circuit
Definition
The circulatory vessels of the lungs; involved in the circulation of blood from the right ventricle of the heart to the lungs and back to the left atruim of the heart.
Term
Systemic circuit
Definition
The circulatory vessels of the body.
Term
Cardiac cycle
Definition
The period from the beginning of one heartbeat to the beginning of the next heartbeat; the systolic and diastolic phases and interval in between.
Term
Systole
Definition
The contraction phase of the cardiac cycle.
Term
Diastole
Definition
The period of filling of the heart between contractions; resting phase of the heart.
Term
Pharynx
Definition
The muscluar, membranous tube extending from the base of the skull to the esophagus.
Term
Larynx
Definition
The organ of the voice; located between the trachea and the base of the tongue.
Term
Trachea
Definition
The cartilaginous and membranous tube extending from the larynx to the bronchi; windpipe.
Term
Bronchi
Definition
The two large branches of the trachea leading into the lungs.
Term
Alveoli
Definition
Spherical extensions of the respiratory bronchioles and the primary sites of gas exchange with the blood.
Term
Bronchioles
Definition
The smallest tubes that supply air to the alveoli (air sacs) of the lungs.
Term
Mediastinum
Definition
The portion of the thoracic cavity between the lungs.
Term
Inspiration
Definition
The drawing of air into the lungs; inhalation.
Term
Thorax
Definition
The portion of the trunk above the diaphragm and below the neck.
Term
Expiration
Definition
The act of expelling air from the lungs; exhalation.
Term
Gastrointestinal (GI) tract
Definition
A long hollow tube from the mouth to anus where digestion and absorption occur.
Term
Chemical digestion
Definition
A form of digestion that involves the addition of enzymes that break down nutrients.
Term
Lymphatic systems
Definition
A network of lymphoid organs, lymph nodes, lymph ducts, lymphatic tissues, lymph capillaries, and lymph vessels that produces and transports lymph fluid from tissues to the circulatory system.
Term
Anus
Definition
The end point of the gastrointestional tract through which semisolid waste is passed from the body.
Term
Epiglottis
Definition
The cartilage in the throat that guards the entrance to the trachea and prevents fluid of food from entering it during the act of swallowing.
Term
Bolus
Definition
A food and saliva digestive mix that is swallowed and then moved through the digestive tract.
Term
Peristalsis
Definition
The process by which muscles in the esophagus and intestines push food through the gastrointestinal tract in wave-like motion.
Term
Cardiac sphincter
Definition
Sits at the upper portion of the stomach; prevents foods and stomach acid from splashing back into the esophagus from the stomach; also called the esophageal sphincter.
Term
Chyme
Definition
The semiliquid mass of partially digested food expelled from the stomach into the duodenum.
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