Vascular System Glossary

 

Glossary

arteriole
(also, resistance vessel) very small artery that leads to a capillary
arteriovenous anastomosis
short vessel connecting an arteriole directly to a venule and bypassing the capillary beds
artery
blood vessel that conducts blood away from the heart; may be a conducting or distributing vessel
capacitance
ability of a vein to distend and store blood
capacitance vessels
veins
capillary
smallest of blood vessels where physical exchange occurs between the blood and tissue cells surrounded by interstitial fluid
capillary bed
network of 10–100 capillaries connecting arterioles to venules
continuous capillary
most common type of capillary, found in virtually all tissues except epithelia and cartilage; contains very small gaps in the endothelial lining that permit exchange
elastic artery
(also, conducting artery) artery with abundant elastic fibers located closer to the heart, which maintains the pressure gradient and conducts blood to smaller branches
external elastic membrane
membrane composed of elastic fibers that separates the tunica media from the tunica externa; seen in larger arteries
fenestrated capillary
type of capillary with pores or fenestrations in the endothelium that allow for rapid passage of certain small materials
internal elastic membrane
membrane composed of elastic fibers that separates the tunica intima from the tunica media; seen in larger arteries
lumen
interior of a tubular structure such as a blood vessel or a portion of the alimentary canal through which blood, chyme, or other substances travel
metarteriole
short vessel arising from a terminal arteriole that branches to supply a capillary bed
microcirculation
blood flow through the capillaries
muscular artery
(also, distributing artery) artery with abundant smooth muscle in the tunica media that branches to distribute blood to the arteriole network
nervi vasorum
small nerve fibers found in arteries and veins that trigger contraction of the smooth muscle in their walls
perfusion
distribution of blood into the capillaries so the tissues can be supplied
precapillary sphincters
circular rings of smooth muscle that surround the entrance to a capillary and regulate blood flow into that capillary
sinusoid capillary
rarest type of capillary, which has extremely large intercellular gaps in the basement membrane in addition to clefts and fenestrations; found in areas such as the bone marrow and liver where passage of large molecules occurs
thoroughfare channel
continuation of the metarteriole that enables blood to bypass a capillary bed and flow directly into a venule, creating a vascular shunt
tunica externa
(also, tunica adventitia) outermost layer or tunic of a vessel (except capillaries)
tunica intima
(also, tunica interna) innermost lining or tunic of a vessel
tunica media
middle layer or tunic of a vessel (except capillaries)
vasa vasorum
small blood vessels located within the walls or tunics of larger vessels that supply nourishment to and remove wastes from the cells of the vessels
vascular shunt
continuation of the metarteriole and thoroughfare channel that allows blood to bypass the capillary beds to flow directly from the arterial to the venous circulation
vasoconstriction
constriction of the smooth muscle of a blood vessel, resulting in a decreased vascular diameter
vasodilation
relaxation of the smooth muscle in the wall of a blood vessel, resulting in an increased vascular diameter
vasomotion
irregular, pulsating flow of blood through capillaries and related structures
vein
blood vessel that conducts blood toward the heart
venous reserve
volume of blood contained within systemic veins in the integument, bone marrow, and liver that can be returned to the heart for circulation, if needed
venule
small vessel leading from the capillaries to veins
Linda Pulgar
administrator
EXPERIENCE Tutor of| Dentist Study Group – Orlando, FL (2016–Present) Prepare international dentists for U.S. boards (NBDHE, ADEX) Speaker and clinical instructor for CE courses Registered Dental Hygienist | Sage Dental – Orlando, FL (2021–Present) Dental Hygiene Skills ⦁ Comprehensive patient assessments and periodontal charting ⦁ Periodontal therapy: scaling and root planing (SRP), full-mouth debridement ⦁ Proficient in radiographic techniques (FMX, BWX, panoramic, Ceph) ⦁ Fluoride applications (varnish, gel), sealants, and desensitizing agents ⦁ Application of localized antimicrobials (Arestin, Atridox) ⦁ Oral hygiene instruction tailored to individual patient needs ⦁ Management of recall systems and re-evaluation protocols ⦁ Soft tissue management, gingival assessments, BOP interpretation ⦁ Infection control, sterilization protocols, OSHA/HIPAA compliance ⦁ Patient education in caries prevention and nutritional counseling Orthodontic Assistant | Multiple Practices – FL (2013–2021) ⦁ Initial orthodontic records: panoramic/cephalometric X-rays, intraoral/extraoral photos, impressions, digital scans ⦁ Bracket placement, band fitting, and bonding assistance ⦁ Archwire changes, ligature tie-ins, elastic and power chain application ⦁ IPR (interproximal reduction) and enamel polishing ⦁ Delivery and adjustment of removable appliances and clear aligners ⦁ Retainer fabrication: Essix, Hawley, and fixed retainers ⦁ Invisalign and iTero scan proficiency ⦁ Orthodontic charting, treatment progress notes, and recall scheduling ⦁ Patient education on appliance care, oral hygiene, and compliance ⦁ Sterilization, inventory management, and operatory setup ⦁ Support during debonding, final impressions, and retainer delivery General & Cosmetic Dentist – Venezuela (2001–2010) Dental Treatments for Oral Rehabilitation in Medically Compromised Patients Patients with systemic conditions such as cancer, autoimmune diseases (e.g., systemic lupus erythematosus, rheumatoid arthritis, Sjögren’s syndrome), or hematologic disorders require an interdisciplinary and medically informed dental approach. Treatment must be tailored to their immunologic, pharmacologic, and systemic health status. ⦁ Comprehensive pre-treatment evaluation in coordination with the medical team. ⦁ Antibiotic prophylaxis when medically indicated. ⦁ Non-surgical periodontal therapy, including scaling and root planing. ⦁ Topical fluoride applications for patients undergoing cancer therapy or experiencing xerostomia. ⦁ Minimally invasive restorative treatments to preserve tooth structure and reduce trauma. ⦁ Use of biocompatible and metal-free materials when sensitivities are present. ⦁ Removable or fixed prostheses adapted for fragile oral mucosa or dry mouth conditions. ⦁ Intensive oral hygiene education and frequent preventive maintenance visits. ⦁ Monitoring of oral side effects from chemotherapy, radiation, or immunosuppressive drugs (e.g., mucositis, osteonecrosis, candidiasis). ⦁ Pain management and comfort-focused care during all procedures. Speaker & Trainer ⦁ Dentist Study group - Dental national board course prep Bilingual ⦁ Dentist study group - Hygienist Uptoday ⦁ Dentist Study group - Medical emergency at dental chair course ⦁ Dentist Study group - Private tutoring for Dental student and Dental hygienist ( Gross anatomy, Physiology, Pharmacology,Oral medicine,Periodontics,Radiology) ⦁ Solidaridad Sin Fronteras – Foreign-trained dentist speaker ⦁ Dental Training for you – Ortho Assistant Instructor - Dental assistant Instructor ⦁ Aligner Plus International Speaker EDUCATION Universidad del Zulia, Maracaibo, Venezuela ⦁ Doctor of Dental Surgery, 2001 ⦁ Orthodontic Seminar (1 year), 2004 ⦁ Graduate Studies & Continuing Education: ⦁ Reconstructive & Cosmetic Dentistry – UCV Caracas, 2002–2003 ⦁ San Juan de Dios Hospital Internship – Caracas, 2004–2005 ⦁ Orthodontics Seminars ⦁ Invisalign (iTero) Training – Miami, FL ⦁ Implant & Digital Impressions, Rx Certification – Miami, FL ⦁ Aligner Plus – CE & International Training ⦁ ACP, OSHA, HIPAA, and Human Trafficking CE ⦁ INBDE Preparation ⦁ NBDHE Certification ⦁ Ongoing Dental Hygienist CE (Online Courses) Additional Clinical Training: ⦁ Curondont Therapy ⦁ Perio Protect Protocol ⦁ Oral Cancer Screening Techniques ⦁ Periodontal Stromal Therapy