NURSING TEST

Bio 255 Exam 2 Questions and Answers Tunica Interna Innermost layer of blood vessels. Tunica Media Middle layer made of smooth muscle. Tunica Externa Outermost layer; anchors blood vessels. Conducting Arteries Large diameter arteries with elastic lamina. Distributing Arteries Medium arteries that supply specific organs. Resistance Arteries Small arteries; include arterioles. Vascular Resistance Opposition to blood flow in vessels. Blood Vi...

Bio 255 Unit 4 Test Practice Questions and Answers Body Systemic means.... Arteries Anything that flows AWAY from the heart veins Anything that flows TO the heart Transportation Regulation Protection What are the 3 function of blood? 8% Blood is what percentage of body weight? 55% 45% In whole blood: _________% Plasma _________% Formed elements (Blood cells) Hematocrit percentage of volume of all formed elements Neutrophils 50-70% o...

Bios 255 Exam 2 Questions and Answers What types of vessels carry blood from the heart? Arteries Which type of muscle tissue is found in blood vessels? smooth Which form of membrane movement is ideal for the transport of gases? Simple diffusion Which blood vessel wall consist of a simple squamous epithelium commonly referred to as endothelium ? Tunica interna What is the primary function of cartoid sinuses? Monitoring blood pressure (Bareceptors) Which ty...

BIOS 255 Comprehensive exam Questions and Answers Which is the best example of a mechanism that contains a positive feedback loop? blood clotting What surrounds a synovial joint, encloses synovial cavity, & unites the articulating bones? articular capsule The ________ component of connective tissue is found between the cells and fibers & binds cells. ground substance Consisting of 5 fused sacral vertebrae sacrum Layer of dead skin filled with sacs of keratin str...

Bio 255 Exam 2 Questions and Answers How many layers do blood vessels contain? 3 Tunica externa consists of epithelial cells, connective tissue, elastic fibers Tunica media consists of elastic fibers and smooth muscle (usually the largest layer) tunica intima (interna) endothelial cells, connective tissue Elastic arteries largest arteries by diameter, contain more elastic fibers than smooth muscle Muscular arteries (distributing arteries) contain large a...

BIOS 255 Comprehensive Exams Questions and Answers Cation A positively charged ion primary active transport mechanism of active transport Meiosis type of cell division takes place in the sex cells to produce sperm Collagen type of fiber in extracellular matrix provides tensile strength hypertonic cause red blood cells to shrivel Stratum basale epidermis contains melanocytes on which layer eccrine sweat glands produce a thin watery sweat that regu...

BIO 255 lab practicum Questions and Answers plasma Liquid part of blood Buffy coat white blood cells and platelets erythrocytes ( red blood cell) leukocytes white blood cells, fight infection platelets blood clotting Blood typing roles of antigen markers that tell your body that something is foreign Roles of antibodies 1. Agglutinate Pathogens 2. Neutralizing Toxins 3. Prevent the pathogen from binding to human cells neutrophils A...

BIOS 255 EXAM 2 Questions and Answers What are the 3 different layers of blood vessels? tunica intima, tunica media, tunica externa What are the three different types of arteries? elastic arteries, muscular arteries, arterioles What kind of blood do arteries carry? oxygenated blood Where do arteries carry blood? away from the heart What are the three different types of capillaries? continuous, fenestrated, and sinusoidal What cells are continuous capillar...

BIOS 255 Comprehensive Exam Questions and Answers Stroke Volume (SV) EDV-ESV Cardiac Output (CO) SV x HR Pulse Pressure (PP) SBP-DBP Mean Arterial Pressure (MAP) diastolic pressure + pulse pressure/3 What is the QRS complex of an ECG? ventricular depolarization endocrine cells release their secretions directly into body fluids exocrine glands secrete chemical substances into ducts that lead either to other organs or out of the body nerve t...

Bio 255 Exam 1 Questions and Answers What are the two main cavities covered in lecture? Dorsal and ventral What is the function of the dorsal cavity and what two subdivisions does it contain? Protection of the nervous system; cranial cavity and vertebral cavity What is the function of the ventral cavity and what two subdivisions does it contain? Encloses internal organs; Thoracic (above diaphragm) and abdominopelvic What does the thoracic cavity contain? Pleural cavity,...